Kenwood KRF-V7771D User manual

(E,T type)
AUDIO VIDEO SURROUND RECEIVER
KRF-V7771D/V7771DE
SERVICE MANUAL
© 1999-1/B51-5498-00 (K/K) 1612
PHONES
INPUT SELECTOR
VOLUME
MPEG Cinema Re-EQ
DOLBY DIGITAL
CLIP INDICATOR
POWER
ON/STANDBY
A
B
SPEAKERS MUTE
DOWN UP
DISPLAY MODE
S VIDEO VL
- AUDIO - RCD2 / TAPE2
MONITOR
ON OFF
AV AUX
SYSTEM
CONTROL
FRONTSPEAKERS
(4-16Ω)
CENTER
SPEAKER
(4-16Ω)
SURROUNDSPEAKERS
DIGITAL IN
VIDEO 2
COAXIAL
VIDEO 3
COAXIAL
VIDEO 4
OPTICAL
CD 1
OPTICAL
SL 16 XS 8
(
SL 16
)(
XS 8
)
(4-16 Ω)
SWITCHED TOTAL
90W MAX.
L
RAL RLC
R
B
SL 16
TEXT
L
R
R
ANTENNA
AM
- FM 75Ω
GND
CD1
PHONO
MD/
TAPE1
REC
OUT
PLAY
IN
REC
OUT
PLAY
IN
PLAY
IN
PLAY
IN
CD2 /
TAPE 2
MONITOR
MONITOR
OUT
FRONT
FRONT
SURROUND SURROUND
CENTER
CENTER
SUB
WOOFER
SUBWOOFER
L
L
R
L
R
VIDEO S VIDEO
PRE OUT VIDEO4 6CH. INPUT
AUDIO
VIDEO 3
VIDEO 4
PLAY
IN
VIDEO 2
VIDEO 1
L
R
AUDIO
PLAY
IN
REC
OUT
+
-
6CH
2CH
VIDEO 4
INPUT
Knob
(K27-2248-04)
AC power cord*
(E30-)
AC outlet*
(E03-)
Phono jack
(E63-1008-05) Phono jack (E63-1028-05)
Lock terminal board
(E70-0052-05) Miniature Phone jack
(E11-0374-05)
Phono jack
(E63-1030-05)
Panel
(A60-1580-12)
Knob
(K29-6858-12)
Knob
(K29-6855-03) Led holder (J19-5876-04) Knob
(K29-6855-03)
Knob
(K29-6852-04)
Phono jack
(E63-0200-05) Phono jack
(E63-0136-15)x2
Phono jack
(E63-0139-15)x2
Slide switch
(S62-0034-05)
Front glass
(B10-2418-03)
Indicator
(B12-0326-04) Front glass (B10-3455-03)
Screw terminal board
(E70-0095-05) Screw terminal board
(E70-0096-05)
*Refer to parts list on page52~.
This manual is available for repair in the Europe and England markets.
Please refer to the original manual (B51-5426-00) if need the information in the USA and Canada and other
markets.
Cylindrical receptacle
(E56-0011-05)x2
Phono jack
(E63-0162-05)x2
Power cord bushing
(J42-0083-05)
Miniature phone jack
(E11-0360-05)
Phono jack
(E63-1077-05)
Cylindrical receptacle
(E56-0012-05)
Phone jack
(E11-0271-05) Indicator (B12-0333-04)
Optical receiving module
(W02-1181-05)

KRF-V7771D/V7771DE
2
CONTENTS / ACCESSORIES / CAUTIONS
CONTENTS / ACCESSORIES / CAUTIONS...............2
CONTROLS.................................................................3
DISASSEMBLY FOR REPAIR.....................................5
BLOCK DIAGRAM.......................................................6
CIRCUIT DESCRIPTION.............................................7
ADJUSTMENT.......................................................... 13
WIRING DIAGRAM....................................................14
PC BOARD ................................................................15
SCHEMATIC DIAGRAM............................................23
EXPLODED VIEW .....................................................51
PARTS LIST...............................................................52
SPECIFICATIONS.....................................................67
Contents
FM
(T90-0836-05)
indoor antenna (1)
Remote
(A70-1269-05)
(RC-R0807)
Battery cover(A09-1115-08)
control unit (1) Loop antenna stand (1) Batteries(R6/AA) (4)
AM loop antenna (1) (T90-0833-05)
(J19-3645-05)
How to reset the microcomputer
The microcomputer may malfunction (impossibility of operation,
erroneous display, etc.) when the power cord is unplugged and
plugged in again while the unit is in ON mode or due to other
externalcauses.In thiscase,execute theprocedureontherightto
reset the microcomputer and return the unit to the normal condi-
tion.
÷ Resetting the microcomputer clears the memory you entered and
returns it to the initial condition when the unit left the factory.
1With the power cord plugged in, turn the POWER key to
OFF.
2While holding down the (ON/STANDBY) key, press
the POWER key.
Please note that the following items will be deleted from
this unit’s memory if the power cord is disconnected
from the AC outlet for approximately three days.
Memory backup function
÷ The frequency setting is cleared and 87.5 MHz is selected.
÷ The preset station memory is cleared.
÷ The surround setting is cleared and reset to the initial condition.
÷ The input selection is cleared and the “Tuner” input is selected.
÷ The volume setting is cleared and the volume is set to “-66 dB”.
÷ The receiving band setting is cleared and the “FM” band is
selected.
Accessories
Cautions

KRF-V7771D/V7771DE
3
CONTROLS
PHONES
INPUT SELECTOR
VOLUME
MPEG Cinema Re-EQ
DOLBY DIGITAL
CLIP INDICATOR
POWER
ON/STANDBY
A
B
SPEAKERS MUTE
DOWN UP
DISPLAY MODE
S VIDEO VL
- AUDIO - RCD2 / TAPE2
MONITOR
ON OFF
AV AUX
2 3 7
54 6 @ # %$ &^
9
80
1
ST.
TUNED
MUTE
!
Standby mode
1POWER key
PresstoswitchthemainpowerONandOFF.
2ON/STANDBY ( )key
Press to switch the power mode between
STANDBY and ON.
3Standby indicator
Lights in standby mode.
4Remote sensor
Receives signals transmitted from the re-
mote control unit.
5PHONES jack
Useforlisteningtoaudiothroughheadphones.
6SPEAKERS keys
Press each key to switch the SPEAKERS A or
SPEAKERS B ON and OFF.
7Indicators
CLIP INDICATOR :
Lights when the input is clipped during
analog to digital signal conversion.
DOLBY DIGITAL :
Lights when Dolby Digital is activated.
Stereo indicator
MUTE indicator
TUNED indicator
Multi-mode display
While the standby indicator of the unit is lit, a small amount of current is flowing into the unit’s internal circuitry to back up the memory. This
condition is referred to as the standby mode of the unit. While the unit is in the standby mode, it can be turned ON from the remote control unit.
Display
MPEG :
Lights when the MPEG is activated.
Cinema Re-EQ :
Lights when the Re-EQ is activated.
8MUTE key
Press to mute the audio temporarily.
9Remote transmitter
Sends signals to the remote control unit.
0Communication indicator
Lights when signal is input from or output to
the remote control unit.
!VOLUME control knob
Rotate to adjust the volume.
@S VIDEO input jack (AV AUX)
Connect the S VIDEO output jack of an AV
component.
#VIDEO input jack (AV AUX)
Connect the composite video output (RCA)
jack of an AV component.
$AUDIO (L, R) input jacks (AV AUX)
Connecttheaudiooutput(RCA)jacksofanAV
component.
%CD2/TAPE2 MONITOR indicator
LightswhentheCD2/Tape2(Monitor)inputis
used.
^DISPLAY MODE key
Press to switch the display on the receiver.
Press for more than 2 seconds to switch the
recording mode.
&INPUT SELECTOR key
Press to switch the input as shown below.
TUNER
CD1
MD/Tape1
VIDEO1
VIDEO2
VIDEO3
VIDEO4
AV AUX
PHONO

KRF-V7771D/V7771DE
4
CONTROLS
Perform “Model Type Setup”
of the remote control before
using it.
Thefollowingmenudisplayap-
pears after the batteries are
loaded for the first time.
ON/STANDBY
MUTE
VOLUME
ENTER
SetupSurround
SP Level
SP Distance
SP Selection
Tuner CD1
Video2 Video3 Video4
Video1
TV1
Phono
TV2
CD2
MD/
Tape1
CD2/
Tape2
Input
Digital
Input
Analog
AV AUX Macro
Remote
Mode
Main
Menu
CONFIRM
1
2
3
45
6
7
8
9
0
Note
Note
1Segment screen
The fixed icons are displayed in this area.
÷ Main Menu icon : Select to display the Main Menu screen.
÷ Phono icon
÷ CD 1 icon
÷ Tuner icon
÷ MD/Tape 1 icon
÷ CD 2/Tape 2 icon
÷ Video 1 icon
÷ Video 2 icon
÷ Video 3 icon
÷ Video 4 icon
÷ AV AUX icon
÷ TV 1 icon
÷ TV 2 icon
÷ Macro icon : Select to control macro operation.
÷ Input Digital icon : Select to play a digital input.
÷ Input Analog icon : Select to play an analog input.
÷ Remote Mode icon : Select to switch the remote control operation
mode without changing the selected input.
Select to switch input and control the se-
lected input. ( Phono and AV AUX : Input
selection only )
Select to control TV.
2Menu screen
Control key icons and control levels are displayed in this area.
3Communication status display
Shows the communication status.
4Joy stick
This key is used to select an icon. This key can be controlled in
4 directions.
5ENTER key
Press to enter the selection of an icon.
6VOLUME (up, down) key
Press to control the volume.
7CONFIRM key
Press to confirm the currently selected items.
8MUTE key
Press to mute the audio temporarily.
9(ON/STANDBY) key
Press to turn the receiver and the components connected to it
through system cords between ON and STANDBY modes.
0Return ( )icon
Select to return to the previous menu screen.
Model Type Setup
Model 2
Model 1

KRF-V7771D/V7771DE
5
DISASSEMBLY FOR REPAIR
6
6
3
4
4
9
9
3
3
2
11
12
1
43
5x2
9x5
8x2
3x2
7
13
13 13
14
14
15
10
1
2
2
2
1
x3
2x3
2
2
x2
x5 2x2
2
3
3
3
3
1
3
x29
[Remove the bottom plate.]
Make use of the changing final transistor etc.
1. Remove the 19 screws (1, 2) and PCB support, then
remove the bottom plate.
[Check the vertical PCB]
1. (Exist bottom plate) Remove the hook of rear
panel(1).
2. Remove the 29(Exist bottom plate: 34)
screws(2), then remove the rear panel.
3. Connect the GND of the phono terminal, the
GND of antenna shield board,the GND of
coax., the GND of system control shield
board, the GND of SP terminal shield board
and the chassis with 5 wires connected alli-
gator chips(3).
[Remove the escutcheon (operation
panel)]
1. Remove the knob(1), the nut (2), the 11
screws(3, 4, 5) and 2 hooks (6), then
remove the front panel ass'y.
2. Remove the lead wire(7), the 2 screws(8:
except K,P type) and 7 screws(9) then
remove the PCB.
3. Remove the under front glass(0, -), then
remove the front panel(=) from the sub
panel.
4. Remove the 2 under escutcheon sides(~) by
·screw driver and the 2 hooks(!) then
remove the escutcheon(@).
Fig. 3
Fig. 1
Fig. 2

VIDEO 1
AV AUX
(FRONT)
VIDEO 4
VIDEO 3
VIDEO 2
VIDEO 1
COMP
VIDEO
PLAY
COMP
REC
VIDEO Q52
SN761200N
IC51
IC52(2/2)
OUT Q55
(OSD)
1Vp-p/75
(VISUAL)
VIDEO 1
VIDEO 2
VIDEO 3
VIDEO 4
(FRONT)
AV AUX
REC
PLAY
(S1-VIDEO)
1Vp-p/75
MONITOR OUT
Q15
Q31
Q16
Q30
Q12
VIDEO 1
Q14
SN761200Nx2
IC11,12
CD1
VIDEO1
VIDEO2
VIDEO3
VIDEO4
MD/TAPE1
VIDEO1
VIDEO2
TAPE2
VIDEO3
VIDEO2
VIDEO4
AVR
IC31
+5.6V
GND
D301-304
FINAL TR.
FINAL TR.
GND
PRE DRIVE
GND
PRE DRIVE
D251
D252
Q154
RELAY
DRIVER
-17V
GND
+17V D81
Q84
AVR
Q83
AVR
Q86
AVR
Q85
AVR
To VIDEO
To VIDEO
+5.0V
GND
IC84
AVR D88
Q311
AVR
-35V
FIL
FIL
STROKE SW
K6
Q301
RELAY
DRIVER
AC OUTLET
D312
K5
T1
D86
IC83
AVR
IC82
AVR
AVR
IC6,33-35
+30V
GND
D82
CD1
L8
R7
R8
L7
L6,L7
L3,L5
L2,L4
L1,R8
L1
MONITOR L4
MD/TAPE1 L2
R1,R7
R2,R4
R3,R5
L8,R6
R2
R4
R1
R3
L3
IC3 BUFFER
REC OUT
L7,R7
L5,R5 L3,R3
R5
IN
L4,R4
LINE
BUFFER
IC21(1/2)
TUNER
2.5mV/
PHONO
IC27
IC1(2/2), IC2(2/2)
IC4
IC1(1/2), IC2(1/2)
IC23
IC1
EQ
(ANALOG)
L2,R2
L1,R1
INPUTATT IC21(2/2)
IC49
BUFFER
BUFFER
DOLBY DIG.
PROLOGIC
CONVERTER
FORMAT
5V
CS4226
DIR AD/DA
IC25
IC30
IC31
IC28
21kHz LPF
21kHz LPF
21kHz LPF
21kHz LPF
IC50
IC52(2/2)
IC54
IC52(1/2)
SUB
CENTER
LS,RS,
FL,FR INV IC49
CONFIG-2
IC47,48
LOW BOOST
DIRECT
L2,R2
L3,R3
L1,R1
L6,R6
TONE
IC43
IC44
L4,R4
L8,R8
L7,R7
VOLUME
VOLUME
VOLUME
VOLUME
IC21
IC25(1/2)
IC23
IC25(2/2)
IC51
(1/2)
IC53
IC52
(2/2)
IC53 Q10
Q9
-20dB
Q5,6
Q1,2
ATT
-20dB
ATT
-20dB
ATT
-20dB
ATT
(1/2)
IC26
(2/2)
IC24
IC26
IC22
AMP
BUFFER
Q12
Q7,8
Q11
Q3,4
MUTE
MUTE
MUTE
MUTE
-20dB ATT
A-MUTE
SW-MUTE
MUTE
Q35,47
45,46
MUTE
Q36,48
MUTE
43,44
MUTE
K3
K4
K1
(X25)(X07)
29dB POWER
AMPLIFIER
(X25)(X07)
29dB POWER
(X25)(X07)
29dB POWER
K2
BUFFER
IC31(1/2)
IC30
BUFFER
IC31(2/2)
BUFFER
RELAY A
RELAY CS
RELAY B
A-MUTE
S-MUTE
SW-MUTE
FRONT
SW
SL,SR
C
L,R
FRONT B
SL,SR
C
PHONES
L,R
FRONTA
SPEAKERS
PRE OUT
PRE OUT
1.0V/500
LED
PEAK LEVEL
LED (X25) IC61
FL DRIVER
(X25) ED1
FL
KEY MATRIX
(X25) A1
REMOTE SENSOR
SUB u-COM
DATA-OUT
MAIN u-COM
(X08) IC3
(X08) IC1
RDS
u-COM
REMOTE
(X08) IC4 (X11) D21-24
IR LED REMOTE OUT
SIRIAL/
PARALEL
(X07) Q211-215
FAN DRIVER FAN
7
(X08)
IC5
PROTECTION
TONE CONT.
VIDEO SYNC
WIDE V-MUTE
DIGITAL INPUT SEL.
VIDEO SEL.
FAN
RELAY
84
4
3
TUNER 9
25(A,B,CS,TR,POWER)
TUNER
DAC/ADC 10
DATA-IN
SL16 TEXT
(X08) J1
(X08) J2
SYSTEM CONTROL
(X08) J3
SYSTEM CONTROL
200mV/47K
200mV/220
IN
OUT
OTHER
TC9164AF-2
TC9163AF-2
MAX:1.0Vrms
IC42
TC9163AF-1
TX RX
SDATA SBUSY
CONFIG
D/A,A/D
Re-EQ
FAN ON/OFF
FAN FRST/SLOW
AMPLIFIER
AMPLIFIER
DIGITAL
5ch SP. OUTPUT
KRF-V7771D(E,T)
IC53
(X25)
S1
CD2/TAPE2
PLAY
IN
SW
LS.RS
C
6ch
INPUT
VIDEO4
AV AUX IN
(FRONT)
REC
OUT
COAXIAL
IN
OPTICAL
IN
IC26
(AC3) MPEG
3.3V
COMFIG.
Re-EQ
IC22
ROM
IC29
1M
DRAM
IC21
Q49,50
MUTE
Q48
MUTE
Q47
MUTE
Q45,46
MUTE IC51
(2/2)
IC55
(1/2)
IC53
IC53 L8
L3,R1
L6
L1,R3
L5
L7
(1/2)
IC19
IC20
IC19
(2/2)
L,R
IC29
BUFFER
DIR
+3.3V IC37
AVR
4.7K PHONO
Q31,32,
20.0V/4
A2
A1
L5
IC18
Q33,34,
MONITOR
SUB MUTE
V-MUTE
Y
C
C
Y
Y
C
C
Y
C
Y
V-MUTE
Y
C
C
Y
+
+
+
SE-RLY
+
+
+
POWER-RLY
To
u-COM
To
POWER
ANALOG
To
SUB-uCOM
DSP
TUNER
MPEG ROM
DOLBY DIG.
To FAN +
STB
CLK
DATA
DATA
CLK
CDOUT
CCLK
CS
CDIN
.FREQ1.ERR
.AC-3.FREQO
.PDN
.AUDIO
SCK/SCL
RESET
SS
MOS GPI02
GPI00
HREQ
MISO/SDA
HREQ
MOS
RESET GPI00
HREQ
MISO/SDA
SCK/SCL
SS
7
51
5
6
DATA OUT
CLK
DATA IN .RESET .STB
13
6
5
MISO/SDA SREQ
MDT
MREQ
MCK
SDT
RESET
KRF-V7771D(E,T)
(X25)
(X11)
(X11)
(X08)
(X25)
(X25)
(X07)
(X25)
(X25)
(X07)
KRF-V7771DE(E2)
(X08-)
(X08)
(SIGNAL STAGE) (u-COM STAGE)
KRF-V7771D/V7771DE
6
BLOCK DIAGRAM

7
KRF-V7771D/V7771DE
CIRCUIT DESCRIPTION
(0 : Pull down, 1 : Pull up)
TYPE BAND Reception
frequency Channel IF
PLL standard
Diode sw
space frequency DSW3 DSW2 DSW1 DSW0
K1 FM 87.5MHz~108.0MHz 100kHz +10.7MHz 25kHz 0000
1700 AM 530kHz~1700kHz 10kHz +450kHz 10kHz
K2 FM 87.5MHz~108.0MHz 100kHz +10.7MHz 25kHz 0001
1610 AM 530kHz~1610kHz 10kHz +450kHz 10kHz
K4 FM 87.5MHz~108.0MHz 100kHz +10.7MHz 25kHz 1010
1700 RBDS AM 530kHz~1700kHz 10kHz +450kHz 10kHz
E1 FM 87.5MHz~108.0MHz 50kHz +10.7MHz 25kHz 0011
AM 531kHz~1602kHz 9kHz +450kHz 9kHz
E3 FM 87.5MHz~108.0MHz 50kHz +10.7MHz 25kHz
RDS AM 531kHz~1602kHz 9kHz +450kHz 9kHz 0101
FML 65.0MHz~74.0MHz 10kHz +10.7MHz 5kHz
Q1 FMH 87.5MHz~108.0MHz 50kHz +10.7MHz 5kHz 1011
RDS AM 531kHz~1602kHz 9kHz +450kHz 9kHz
MK2/E1 is switched with only the setting of DSW1 (X11 : S601). 00X1
(DSW1 = 0 : K2 type, 1 : E1 type)
77 76 75 74
1. The back up item and initialization
condition
1-1 Back up
• POWER ON/OFF : OFF
• VOLUME LEVEL : -66dB
• AUDIO INPUT • SELECTOR : TUNER
• VIDEO INPUT • SELECTOR : VIDEO1
• SPEAKER A : ON
• SPEAKER B : OFF
• CD2/TAPE2 MONITOR : TAPE2 OFF
• TONE : OFF
• LOUDNESS : OFF
• DISPLAY MODE : DEVICE+DGTL/ANLG
• RDS DISPLAY MODE : FREQUENCY
• DIMMER : DIMMER 1 (LIGHTEST)
• SURROUND MODE : STEREO
• Re-EQ : OFF
• DSP MODE : ARENA
• WALL TYPE : Med
• EFFECT LEVEL : 3
• MIDNIGHT MODE : OFF
• DISTANCE : FL/FR : 10ft (3m)
: C : 10ft (3m)
: RS/LS : 5ft (1.5m)
: SW : 10ft (3m)
• FRONT SP. : LARGE
• CENTER SP. : NORMAL
• SURROUND SP. : NORMAL/WIRED
• SUB WOOFER : ON
• SW Re-Mix : OFF
• INPUT LEVEL : 0dB
• CH. LEVEL : 0dB
• BASS PEAK LEVEL : OFF
• TONE BASS : 0dB
• TONE TREBLE : 0dB
• TUNING MODE : AUTO
• PRESET MEMORY : TEST MEMORY
FREQUENCY (Same value with KR-V999D/1090VR)
• LAST BAND : FM
• FM LAST FREQUENCY : 87.5MHz
• AM LAST FREQUENCY : 531kHz (CH. SP 9kHz)
: 530kHz (CH. SP 10kHz)
• LAST P. ch : [- -ch]
• PTY SELECT MODE : OFF
• PTY SEARCH MODE : OFF
• TP SEARCH MODE : OFF
• RDS DISPLAY MODE : FREQUENCY MODE
1-2 The initial setting
While pressing POWER key, plug the AC power cord into
an AC outlet (K,P type) or turn on the AC POWER
switch.
2. Condition by the destination or model
3. TEST MODE
[setting method]
While pressing INPUT SELECTOR key, plug the AC
power cord into an AC outlet (K, P type) or turn on the
AC POWER switch with condition VIDEO4 SW(2ch) on
the rear panel. When a set is set up in test mode
condition a set becomes the following condition.
Automatic POWER ON. All indicator tube (FL) and CLIP
INDICATOR LED are lighted. The other LED are flashed.
A backup at the thing except ON/OFF of POWER is
initialized.
[cancel method]
The power supply is turned off.
W&g
?W&@g
W&@@g
.Y@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@@@@@f
?W&?2@6Kf
O&@@@@@@@?e
?@@@@(M?I'@Le
?@@He?N@1e
?@@?f@@e
?@@?f@@e
?@@?f@@e
?@@?f@5e
?@@Le?J@He
?@@)K?O&@?e
?@@V4@0Mf
?@@?h
?@@?h
?@@?h
?@@?h
?@@?h
?@@@@@@?g
O2@@6Kf
?@@(MI'@@?e
J@(YeV'@Le
7@H?e?N@1e
@@g@@e
@@g@@e
3@L?e?J@@e
N@)XeW&@@e
?@@)KO&@@@e
I4@@0Y@5e
?J@He
W&5?e
?W&(Y?e
O&(Yf
O2@0Y?f
?@@0M?g
O2@@6Kf
?@@(MI'@@?e
J@(YeV'@Le
7@H?e?N@1e
@@g@@e
@@g@@e
3@L?e?J@@e
N@)XeW&@@e
?@@)KO&@@@e
I4@@0Y@5e
?J@He
W&5?e
?W&(Y?e
O&(Yf
O2@0Y?f
?@@0M?g
?@@?e
?@@?e
W&g
?W&@g
W&@@g
.Y@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@@@@@f
W2@@6Xf
?W&(MI')X?e
?7@HeN@1?e
J@5?e?3@Le
7@H?e?N@1e
@@g@@e
@@g@@e
@@g@@e
@@g@@e
@@g@@e
@@g@@e
3@L?e?J@5e
N@1?e?7@He
?3@LeJ@5?e
?V')KO&(Y?e
V4@@0Yf
?@@?e
?@@?e
?O2@@6X?f
@@@@@@)Xf
?J(MeI'@1f
?.Y?e?N@@f
@@f
@@f
?J@5f
?7@Hf
J@5?f
7(Y?f
?J(Yg
W.Y?g
?W.Yh
W&Y?fO.e
?W&@@@@@@@(Ye
?&@@@@@@@0Y?e
W2@@6Xf
?W&(MI')X?e
?7@HeN@1?e
?@@?e?@@?e
?@@LeJ@@?e
?3@)KO&@5?e
?V'@@@@(Y?e
?@@@@?f
?W&(?'@)X?e
W&(Y?V'@)Xe
7@H?eV'@1e
@@f?N@@e
@@g@@e
3@L?e?J@5e
V4)KeO&0Ye
I4@@0Mf
W2@@6Xf
?W&(MI')X?e
?7@HeN@1?e
?@@?e?@@?e
?@@LeJ@@?e
?3@)KO&@5?e
?V'@@@@(Y?e
?@@@@?f
?W&(?'@)X?e
W&(Y?V'@)Xe
7@H?eV'@1e
@@f?N@@e
@@g@@e
3@L?e?J@5e
V4)KeO&0Ye
I4@@0Mf
?
?
?
?
?
?
?
?
?
?
?
?
?
?@@?e?
?@@?e?
?
?
?
?
?
?
?
?@@?e?
?@@?e?
?
?
?
?
?
?
?
?O2@@6X?f
@@@@@@)Xf
?J(MeI'@1f
?.Y?e?N@@f
@@f
@@f
?J@5f
?7@Hf
J@5?f
7(Y?f
?J(Yg
W.Y?g
?W.Yh
W&Y?fO.e
?W&@@@@@@@(Ye
?&@@@@@@@0Y?e
W&g
?W&@g
W&@@g
.Y@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@@@@@f
?
?
?
?
?
?
?
?
?@@@@@@@@6K?e?
?@@?eI'@@e?
?@@?e?N@@L??
?@@?f@@1??
?@@?f@@@??
?@@?f@@5??
?@@?e?J@@H??
?@@?eO&@@e?
?@@@@@@0M?e?
?@@?h?
?@@?h?
?@@?h?
?@@?h?
?@@?h?
?@@?h?
?@@@@@@?g?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
@@@@he@@@@@??
@@L?g?J@@@?e?
@@1?g?7Y@@?e?
@@@Lg?@?@@?e?
@?@1gJ5?@@?e?
@?3@L?f7H?@@?e?
@?N@1?f@??@@?e?
@??3@Le?J5??@@?e?
@??N@1e?7H??@@?e?
@?e3@L??@e?@@?e?
@?eN@1?J5e?@@?e?
@?e?3@W&He?@@?e?
@?e?N@@@?e?@@?e?
@?f3@5?e?@@?e?
@?fN@H?e?@@?e?
@@@@@?e?@e?@@@@@@??
?
?
?
?
?
?
?
W26Xf
7<B1f
3=C5f
W2@@6XfV40Yf
?W&(MI')X?he
W&(YeV')Xhe
?W&(Y?e?V')X?h
W&(YgV')Xh
@?&@H?g?V')X?g
3@@5heV')Xg
V40Yhe?V')K?f
V'@6X?e
?V'@)Xe
V'@1e
?V4@e
?O26X?e
?@K?f?O2@@@@@@@@@1?e
?3@@@@@@@@0Mg?I@?e
?V40M?
@@6Khe'6X?e
?I'@@?f?'6XV'1?e
V4@?f?V'1?V'?e
V'g
?@@6K?
I'@@hfW.f
?V4@he?W&Hf
W&5?f
?W&(Y?f
W&(Yg
?W&(Y?g
O&(Yh
W2@(Y?h
?O&@0Yhe
?O2@(Mhf
?@KO2@@0Y?hf
?3@@@0M?hg
?V40M?
O2@6X?f
W2@@@@)Xf
7(M?I'@1f
(Ye?N@@f
?J@5f
W&(Yf
?W&@g
?&@@)Xf
?I')X?e
N@1?e
?@@?e
?@@?e
?@5?e
@6X?eJ@H?e
3@)K?O&@f
V4@@@0M?f

8
KRF-V7771D/V7771DE
CIRCUIT DESCRIPTION
(X25) IC53
MAIN u-COM
uPD78078GF-086
V-SEL CONT.
FAN-M
NJU3713D
SEL_DATA, SEL_CLK,
VIDEO_STB
(X11) IC1,2,4,42
(X25) IC23
SEL IC1/2
TC9162~9164
SEL_DATA, SEL_CLK,
SEL_STB1, SEL_STB2
(X11) IC21,23,25
VOLUME IC
TC9412/9413AP
VOL_DATA, VOL_CLK,
VOL_CE1
(X11) IC44
TONE IC
TC9184AP
VOL_DATA, VOL_CLK,
VOL_CE2
(X25) A1
REMOCON
REMOCON_IN1 (FRONT PANEL)
(X08)
IC1
TUNER/RDS
TDA7479D
RDS_DAT, RDS_CLK,
RDS_SLEVEL, T_MUTE,
SD, STEREO
(X11)
IC602
TUNER PLL IC
LC72131
PLL_CLK, PLL_DATA,
PLL_CE, PLL_DO
MEGA CHANGER
(CD-0000M)
UART_RXD, UART_TXD,
(X08) IC5
SUB u-COM
uPD78056GC
SUB_RESET, SDT, MOT,
MCK, MREQ, SREQ
(X25) IC61
FL DRIVER
uPD780204
FL_DOUT, FL_DIN,
FL_CLK, FL_STB,
DPU_RST
SERIAL
SDATA, SBUSY
(X07) K1~6
(X25) K1
RELAY
RELAY_A, RELAY_B,
RELAY_CS, RELAY_TR,
RELAY_POWER, EXT_OUT
RELAY_MULTI
DESTINATION
999_888, 8_16, TSW_B,
TSW_1, TSW_2,
TSW_3 (CH, SP)
(X11) S1
ENCODER
ENC_VOL1, ENC_VOL2
(X08) IC4
REMOCON COMMUNICATION IC
SMK_REQ, SMK_ENB, SMK_RWR, SMK_D0,
SMK_D1, SMK_D2, SMK_D3, SMK_D4, SMK_D5,
SMK_D6, SMK_D7
MUTE
MUTE_A, MUTE_B,
SW_MUTE, -20dB_ATT,
VIDEO_MUTE, SCH_MUTE
(X25) IC 90
(X08) IC3
PERFECT MACRO
POWER DETECT
TU_PDET, U_PDET,
USEL_CTLA, USEL_CTLB
USEL_TR
Push key INPUT SELECTOR SP A SP B MUTE DISPLAY MODE
TUNER STEREO P. CALL
UP P. CALL DOWN
ATT
OFF ON FM
AUTO/STEREO MANUAL/MONO
(DOLBY DIGITAL LED : OFF ON)
CD1 STEREO TONE (TUNED)
+10 (light on) OFF (light off)
MD/TAPE1 STEREO
VIDEO1 PRO LOGIC
VIDEO2 3 STEREO
FL
DISPLAY VIDEO3 PRO LOGIC+Re-EQ
VIDEO4 DSP ARENA JAZZ CLUB
THEATER
AV AUX STEREO TAPE2
OFF ON
PHONO
SL16/XS8 SW (rear panel): SL16 STANDBY LED (light off), XS8 STANDBY LED (light on)
STEREO INPUT LEVEL
0dB -3dB -6dB
4. Main microprocessor uPD78078GF-086 (X08 : IC3)
4-1 Microprocessor periphery block diagram
W&g
?W&@g
W&@@g
.Y@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@@@@@f
?W&?2@6Kf
O&@@@@@@@?e
?@@@@(M?I'@Le
?@@He?N@1e
?@@?f@@e
?@@?f@@e
?@@?f@@e
?@@?f@5e
?@@Le?J@He
?@@)K?O&@?e
?@@V4@0Mf
?@@?h
?@@?h
?@@?h
?@@?h
?@@?h
?@@@@@@?g
O2@@6Kf
?@@(MI'@@?e
J@(YeV'@Le
7@H?e?N@1e
@@g@@e
@@g@@e
3@L?e?J@@e
N@)XeW&@@e
?@@)KO&@@@e
I4@@0Y@5e
?J@He
W&5?e
?W&(Y?e
O&(Yf
O2@0Y?f
?@@0M?g
O2@@6Kf
?@@(MI'@@?e
J@(YeV'@Le
7@H?e?N@1e
@@g@@e
@@g@@e
3@L?e?J@@e
N@)XeW&@@e
?@@)KO&@@@e
I4@@0Y@5e
?J@He
W&5?e
?W&(Y?e
O&(Yf
O2@0Y?f
?@@0M?g
?@@?e
?@@?e
W&g
?W&@g
W&@@g
.Y@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@@@@@f
W2@@6Xf
?W&(MI')X?e
?7@HeN@1?e
J@5?e?3@Le
7@H?e?N@1e
@@g@@e
@@g@@e
@@g@@e
@@g@@e
@@g@@e
@@g@@e
3@L?e?J@5e
N@1?e?7@He
?3@LeJ@5?e
?V')KO&(Y?e
V4@@0Yf
?@@?e
?@@?e
?O2@@6X?f
@@@@@@)Xf
?J(MeI'@1f
?.Y?e?N@@f
@@f
@@f
?J@5f
?7@Hf
J@5?f
7(Y?f
?J(Yg
W.Y?g
?W.Yh
W&Y?fO.e
?W&@@@@@@@(Ye
?&@@@@@@@0Y?e
W2@@6Xf
?W&(MI')X?e
?7@HeN@1?e
?@@?e?@@?e
?@@LeJ@@?e
?3@)KO&@5?e
?V'@@@@(Y?e
?@@@@?f
?W&(?'@)X?e
W&(Y?V'@)Xe
7@H?eV'@1e
@@f?N@@e
@@g@@e
3@L?e?J@5e
V4)KeO&0Ye
I4@@0Mf
W2@@6Xf
?W&(MI')X?e
?7@HeN@1?e
?@@?e?@@?e
?@@LeJ@@?e
?3@)KO&@5?e
?V'@@@@(Y?e
?@@@@?f
?W&(?'@)X?e
W&(Y?V'@)Xe
7@H?eV'@1e
@@f?N@@e
@@g@@e
3@L?e?J@5e
V4)KeO&0Ye
I4@@0Mf
?
?
?
?
?
?
?
?
?
?
?
?
?
?@@?e?
?@@?e?
?
?
?
?
?
?
?
?@@?e?
?@@?e?
?
?
?
?
?
?
?
?O2@@6X?f
@@@@@@)Xf
?J(MeI'@1f
?.Y?e?N@@f
@@f
@@f
?J@5f
?7@Hf
J@5?f
7(Y?f
?J(Yg
W.Y?g
?W.Yh
W&Y?fO.e
?W&@@@@@@@(Ye
?&@@@@@@@0Y?e
W&g
?W&@g
W&@@g
.Y@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@@@@@f
?
?
?
?
?
?
?
?
?@@@@@@@@6K?e?
?@@?eI'@@e?
?@@?e?N@@L??
?@@?f@@1??
?@@?f@@@??
?@@?f@@5??
?@@?e?J@@H??
?@@?eO&@@e?
?@@@@@@0M?e?
?@@?h?
?@@?h?
?@@?h?
?@@?h?
?@@?h?
?@@?h?
?@@@@@@?g?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
@@@@he@@@@@??
@@L?g?J@@@?e?
@@1?g?7Y@@?e?
@@@Lg?@?@@?e?
@?@1gJ5?@@?e?
@?3@L?f7H?@@?e?
@?N@1?f@??@@?e?
@??3@Le?J5??@@?e?
@??N@1e?7H??@@?e?
@?e3@L??@e?@@?e?
@?eN@1?J5e?@@?e?
@?e?3@W&He?@@?e?
@?e?N@@@?e?@@?e?
@?f3@5?e?@@?e?
@?fN@H?e?@@?e?
@@@@@?e?@e?@@@@@@??
?
?
?
?
?
?
?
W26Xf
7<B1f
3=C5f
W2@@6XfV40Yf
?W&(MI')X?he
W&(YeV')Xhe
?W&(Y?e?V')X?h
W&(YgV')Xh
@?&@H?g?V')X?g
3@@5heV')Xg
V40Yhe?V')K?f
V'@6X?e
?V'@)Xe
V'@1e
?V4@e
?O26X?e
?@K?f?O2@@@@@@@@@1?e
?3@@@@@@@@0Mg?I@?e
?V40M?
@@6Khe'6X?e
?I'@@?f?'6XV'1?e
V4@?f?V'1?V'?e
V'g
?@@6K?
I'@@hfW.f
?V4@he?W&Hf
W&5?f
?W&(Y?f
W&(Yg
?W&(Y?g
O&(Yh
W2@(Y?h
?O&@0Yhe
?O2@(Mhf
?@KO2@@0Y?hf
?3@@@0M?hg
?V40M?
W&f
?W&@f
W&@@f
?W&@@@f
W&(Y@@f
?W&(Y?@@f
W&(Ye@@f
?W&(Y?e@@f
?7@Yf@@f
?@@@@@@@@@@@e
?@@@@@@@@@@@e
@@f
@@f
@@f
@@f
@@f

9
KRF-V7771D/V7771DE
CIRCUIT DESCRIPTION
Pin Name I/O Description
1 SEL_STB O VOLUME IC CE (TC9412AP/TC9413AP)
2 VOL_CLK O VOLUME IC CLOCK (TC9412AP/TC9413AP) TONE IC CLOCK (TC9184AP)
3 VOL_DATA O VOLUME IC DATA (TC9412AP/TC9413AP) TONE IC DATA (TC9184AP)
4 SEL_STB1 O ANALOG SW. STROBE (TC9163/TC9164)
5 SEL_STB2 O ANALOG SW. STROBE (TC9162/TC9163)
6 VIDEO_STB O VIDEO IC STROBE (NJU3713D)
7 SEL_CLK O ANALOG SW. CLOCK (TC9162-TC9164) VIDEO IC CLOCK (NJU3713D)
8 SEL_DATA O ANALOG SW. DATA (TC9162-TC9164) VIDEO IC DATA (NJU3713D)
9 IC(VPP) – NO USED
10 X2 – MAIN CLOCK 4.19MHz (CERAMICS)
11 X1 I MAIN CLOCK 4.19MHz (CERAMICS)
12 VDD – +5V
13, 14 XT2, 1 – NO USED
15 RESET I uCOM RESET
16 REMOCON_IN1 I REMOCON
17 6CH_2CH I VIDEO 4 ANALOG INPUT 6ch/2ch SELECT L : 2ch H : 6ch
18 RDS_DATA I RDS DATA (SAA6579)
19 RDS_CLK I RDS CLOCK (SAA6579)
20, 21 NC I NO USED
22 CE I BACK UP CE PORT
23 AVDD – +5V
24 AVREF0 I A/D POWER SUPPLY
25 RDS_SLEVEL I RDS SLEVEL (SAA6579)
26 T_MUTE O TUNER MUTE
27 PLL_CLK O PLL IC CLOCK (LC72131)
28 PLL_DATA O PLL IC DATA (LC72131)
29 PLL_CE O PLL IC CE (LC72131)
30 SD I SD INPUT
31 STEREO I STEREO INPUT
32 PLL_DO I PLL IC DO (LC72131)
33 AVSS – GND
34 SUB_RESET O SUB uCOM RESET (uPD78056GC-A23)
35 V_PDET I PERFECT MACRO VIDEO POWER DETECT L : VIDEO POWER ON, H : VIDEO POWER OFF
36 AVREF1 – +5V
37 UART_RXD I MECHA • CHANGER CD UART DATA RECEIVE (CD TEXT)
38 UART_TXD O MECHA • CHANGER CD UART DATA TRANSMIT (CD TEXT)
39 VSEL_TR O PERFECT MACRO VIDEO SELECTOR POWER SASW. Tr. CONTROL
40 VSS – GND
41 SDT I uCOM-uCOM COMMUNICATION SLAVE DATA (uPD78056GC-A23)
42 MDT O uCOM-uCOM COMMUNICATION MASTER DATA (uPD78056GC-A23)
43 MCK O uCOM-uCOM COMMUNICATION MASTER CLOCK (uPD78056GC-A23)
44 MREQ O uCOM-uCOM COMMUNICATION MASTER REQUEST (uPD78056GC-A23)
45 SREQ I uCOM-uCOM COMMUNICATION SLAVE REQUEST (uPD78056GC-A23)
46 FL_DOUT I FL DRIVER DATA IN
47 FL_DIN O FL DRIVER DATA OUT
48 FL_CLK O FL DRIVER CLOCK
49 FL_STB O FL DRIVER STROBE
50, 51 VSEL_CTL A, B O PERFECT MACRO VIDEO SELECTOR CONTROL A, B
52~54 FAN_1-3 I FAN DETECT 1-3
55 SDATA I/O SERIAL DATA
56 SBUSY I/O SERIAL BUSY
57 RELAY_A O SPEAKER A RELAY
58 RELAY_B O SPEAKER B RELAY
59 RELAY_CS O CENTER/SURROUND SPEAKER RELAY
60 RELAY_TR O TR. RELAY
4-2 Pin description
Pin Name I/O Description
61 RELAY_POWER O POWER RELAY
62 EXT_OUT O EXTERNAL RELAY CONTROL
63 NC O NO USED
64 DRV_RST O FL DRIVER RESET
65 TV_PDET I PERFECT MACRO TV POWER DETECT L : TV POWER OFF, H : TV POWER ON
66 9991_7771 I TYPE SELECT L : KRF-V7771D, H : KRF-X9991D
67 8_16 I SERIAL SELECT L : SERIAL 16bit, H : SERIAL 8bit
68 ENC_VOL2 I VOLUME ENCODER IN
69 ENC_VOL1 I VOLUME ENCODER IN
70 PROTECTION1 I PROTECT VOLTAGE DETECT L : OFF, H : ON
71 VSS – GND
72 PROTECTION2 I PROTECT CURRENT DETECT L : OFF, H : ON
73 NC I NO USED
74~77 TSW_0 I TUNER DESTINATION SW. 0-3
78~82 NC – NO USED
83 SMK_REQ O REMOCON DATA TRANSMIT IC REQ
84 SMK_ENB I REMOCON DATA TRANSMIT IC ENB
85 SMK_RWR I REMOCON DATA TRANSMIT IC RWR
86~93 SMK_D0-7 O REMOCON DATA TRANSMIT IC D 0-7
94 MUTE_A O ROOM A MUTE
95 NC O NO USED
96 SW_MUTE O SWch MUTE
97 -20dB_ATT O -20dB ATTENUATER
98 VIDEO_MUTE O VIDEO MUTE
99 SCH_MUTE O Sch MUTE
100 TONE_STB O TONE IC CE (TC9184AP)
W&g
?W&@g W&@@g .Y@@g
@@g @@g @@g @@g @@g @@g @@g @@g @@g @@g @@g
@@@@@@f
?W&?2@6Kf O&@@@@@@@?e
?@@@@(M?I'@Le
?@@He?N@1e ?@@?f@@e ?@@?f@@e ?@@?f@@e ?@@?f@5e ?@@Le?J@He ?@@)K?O&@?e ?@@V4@0Mf ?@@?h ?@@?h ?@@?h ?@@?h ?@@?h
?@@@@@@?g
O2@@6Kf
?@@(MI'@@?e J@(YeV'@Le 7@H?e?N@1e @@g@@e @@g@@e 3@L?e?J@@e N@)XeW&@@e ?@@)KO&@@@e
I4@@0Y@5e
?J@He W&5?e
?W&(Y?e O&(Yf
O2@0Y?f
?@@0M?g
O2@@6Kf
?@@(MI'@@?e J@(YeV'@Le 7@H?e?N@1e @@g@@e @@g@@e 3@L?e?J@@e N@)XeW&@@e ?@@)KO&@@@e
I4@@0Y@5e
?J@He W&5?e
?W&(Y?e O&(Yf
O2@0Y?f
?@@0M?g
?@@?e ?@@?e
W&g
?W&@g W&@@g .Y@@g
@@g @@g @@g @@g @@g @@g @@g @@g @@g @@g @@g
@@@@@@f
W2@@6Xf
?W&(MI')X?e ?7@HeN@1?e J@5?e?3@Le 7@H?e?N@1e @@g@@e @@g@@e @@g@@e @@g@@e @@g@@e @@g@@e 3@L?e?J@5e N@1?e?7@He ?3@LeJ@5?e ?V')KO&(Y?e
V4@@0Yf
?@@?e ?@@?e
?O2@@6X?f @@@@@@)Xf
?J(MeI'@1f ?.Y?e?N@@f
@@f @@f
?J@5f ?7@Hf J@5?f 7(Y?f
?J(Yg W.Y?g
?W.Yh W&Y?fO.e
?W&@@@@@@@(Ye ?&@@@@@@@0Y?e
W2@@6Xf
?W&(MI')X?e ?7@HeN@1?e ?@@?e?@@?e ?@@LeJ@@?e ?3@)KO&@5?e ?V'@@@@(Y?e
?@@@@?f
?W&(?'@)X?e W&(Y?V'@)Xe 7@H?eV'@1e @@f?N@@e @@g@@e 3@L?e?J@5e V4)KeO&0Ye
I4@@0Mf
W2@@6Xf
?W&(MI')X?e ?7@HeN@1?e ?@@?e?@@?e ?@@LeJ@@?e ?3@)KO&@5?e ?V'@@@@(Y?e
?@@@@?f
?W&(?'@)X?e W&(Y?V'@)Xe 7@H?eV'@1e @@f?N@@e @@g@@e 3@L?e?J@5e V4)KeO&0Ye
I4@@0Mf
? ? ? ? ? ? ? ? ? ? ? ? ?
?@@?e? ?@@?e?
? ? ? ? ? ? ?
?@@?e? ?@@?e?
? ? ? ? ? ? ?
?O2@@6X?f @@@@@@)Xf
?J(MeI'@1f ?.Y?e?N@@f
@@f @@f
?J@5f ?7@Hf J@5?f 7(Y?f
?J(Yg W.Y?g
?W.Yh W&Y?fO.e
?W&@@@@@@@(Ye ?&@@@@@@@0Y?e
W&g
?W&@g W&@@g .Y@@g
@@g @@g @@g @@g @@g @@g @@g @@g @@g @@g @@g
@@@@@@f
? ? ? ? ? ? ? ?
?@@@@@@@@6K?e?
?@@?eI'@@e? ?@@?e?N@@L?? ?@@?f@@1?? ?@@?f@@@?? ?@@?f@@5?? ?@@?e?J@@H?? ?@@?eO&@@e? ?@@@@@@0M?e? ?@@?h? ?@@?h? ?@@?h? ?@@?h? ?@@?h? ?@@?h?
?@@@@@@?g?
? ? ? ? ? ? ?
? ? ? ? ? ? ? ?
@@@@he@@@@@??
@@L?g?J@@@?e? @@1?g?7Y@@?e? @@@Lg?@?@@?e? @?@1gJ5?@@?e? @?3@L?f7H?@@?e? @?N@1?f@??@@?e? @??3@Le?J5??@@?e? @??N@1e?7H??@@?e? @?e3@L??@e?@@?e? @?eN@1?J5e?@@?e? @?e?3@W&He?@@?e? @?e?N@@@?e?@@?e? @?f3@5?e?@@?e? @?fN@H?e?@@?e?
@@@@@?e?@e?@@@@@@??
? ? ? ? ? ? ?
W26Xf 7<B1f 3=C5f
W2@@6XfV40Yf
?W&(MI')X?he W&(YeV')Xhe
?W&(Y?e?V')X?h W&(YgV')Xh
@?&@H?g?V')X?g 3@@5heV')Xg V40Yhe?V')K?f
V'@6X?e ?V'@)Xe
V'@1e ?V4@e
?O26X?e
?@K?f?O2@@@@@@@@@1?e ?3@@@@@@@@0Mg?I@?e ?V40M?
@@6Khe'6X?e ?I'@@?f?'6XV'1?e
V4@?f?V'1?V'?e
V'g
?@@6K?
I'@@hfW.f ?V4@he?W&Hf
W&5?f
?W&(Y?f W&(Yg
?W&(Y?g O&(Yh
W2@(Y?h
?O&@0Yhe
?O2@(Mhf
?@KO2@@0Y?hf ?3@@@0M?hg ?V40M?
O2@@6Kf
?@@(MI'@@?e J@(YeV'@Le 7@H?e?N@1e @@g@@e @@g@@e 3@L?e?J@@e N@)XeW&@@e ?@@)KO&@@@e
I4@@0Y@5e
?J@He W&5?e
?W&(Y?e O&(Yf
O2@0Y?f
?@@0M?g

INPUT (X25:IC23)TC9162AF (X11:IC4)TC9163AF (X11:IC1,2)TC9164AF
( : ON )
TAPE2/ INPUT SURROUND SELECTOR SW1 SW2 SW3 SW4 SW5 SW6 SW7 L1 L2 L3 L4 L5 L6 L7 L8 R1 R2 R3 R4 R5 R6 R7 R8 L1 L2 L3 L4 L5 L6 L7 L8 R1 R2 R3 R4 R5 R6 R7 R8
MONITOR MODE MODE
Pin NO. 2 27 3 26 5 24 6 23 8 21 9 20 11 18 2346781011272625232221191823457810112726252422211918
PHONO
TUNER
MD/TAPE1
CD1
ANALOG VIDEO1
VIDEO2
VIDEO3
VIDEO4
TAPE2 OFF AV AUX
CD1
STEREO VIDEO2
VIDEO3
DIGITAL VIDEO4
CD1
EXCEPT VIDEO2
STEREO VIDEO3
VIDEO4
PHONO
TUNER
MD/TAPE1
CD1
ANALOG VIDEO1
VIDEO2
VIDEO3
VIDEO4
TAPE2 ON AV AUX
CD1
STEREO VIDEO2
VIDEO3
DIGITAL VIDEO4
CD1
EXCEPT VIDEO2
STEREO VIDEO3
VIDEO4
CD2 is set CD2/TAPE2:(x11)IC1,2 11 pin OFF
CD2/TAPE2 MONITOR:TAPE2
(1) TC9162/TC9163/TC9164 SW. CONTROL
10
KRF-V7771D/V7771DE
CIRCUIT DESCRIPTION
5. AUDIO INPUT SELECTOR CONTROL
W&g
?W&@g W&@@g .Y@@g
@@g @@g @@g @@g @@g @@g @@g @@g @@g @@g @@g
@@@@@@f
?W&?2@6Kf O&@@@@@@@?e
?@@@@(M?I'@Le
?@@He?N@1e ?@@?f@@e ?@@?f@@e ?@@?f@@e ?@@?f@5e ?@@Le?J@He ?@@)K?O&@?e ?@@V4@0Mf ?@@?h ?@@?h ?@@?h ?@@?h ?@@?h
?@@@@@@?g
O2@@6Kf
?@@(MI'@@?e J@(YeV'@Le 7@H?e?N@1e @@g@@e @@g@@e 3@L?e?J@@e N@)XeW&@@e ?@@)KO&@@@e
I4@@0Y@5e
?J@He W&5?e
?W&(Y?e O&(Yf
O2@0Y?f
?@@0M?g
O2@@6Kf
?@@(MI'@@?e J@(YeV'@Le 7@H?e?N@1e @@g@@e @@g@@e 3@L?e?J@@e N@)XeW&@@e ?@@)KO&@@@e
I4@@0Y@5e
?J@He W&5?e
?W&(Y?e O&(Yf
O2@0Y?f
?@@0M?g
?@@?e ?@@?e
W&g
?W&@g W&@@g .Y@@g
@@g @@g @@g @@g @@g @@g @@g @@g @@g @@g @@g
@@@@@@f
W2@@6Xf
?W&(MI')X?e ?7@HeN@1?e J@5?e?3@Le 7@H?e?N@1e @@g@@e @@g@@e @@g@@e @@g@@e @@g@@e @@g@@e 3@L?e?J@5e N@1?e?7@He ?3@LeJ@5?e ?V')KO&(Y?e
V4@@0Yf
?@@?e ?@@?e
?O2@@6X?f @@@@@@)Xf
?J(MeI'@1f ?.Y?e?N@@f
@@f @@f
?J@5f ?7@Hf J@5?f 7(Y?f
?J(Yg W.Y?g
?W.Yh W&Y?fO.e
?W&@@@@@@@(Ye ?&@@@@@@@0Y?e
W2@@6Xf
?W&(MI')X?e ?7@HeN@1?e ?@@?e?@@?e ?@@LeJ@@?e ?3@)KO&@5?e ?V'@@@@(Y?e
?@@@@?f
?W&(?'@)X?e W&(Y?V'@)Xe 7@H?eV'@1e @@f?N@@e @@g@@e 3@L?e?J@5e V4)KeO&0Ye
I4@@0Mf
W2@@6Xf
?W&(MI')X?e ?7@HeN@1?e ?@@?e?@@?e ?@@LeJ@@?e ?3@)KO&@5?e ?V'@@@@(Y?e
?@@@@?f
?W&(?'@)X?e W&(Y?V'@)Xe 7@H?eV'@1e @@f?N@@e @@g@@e 3@L?e?J@5e V4)KeO&0Ye
I4@@0Mf
? ? ? ? ? ? ? ? ? ? ? ? ?
?@@?e? ?@@?e?
? ? ? ? ? ? ?
?@@?e? ?@@?e?
? ? ? ? ? ? ?
?O2@@6X?f @@@@@@)Xf
?J(MeI'@1f ?.Y?e?N@@f
@@f @@f
?J@5f ?7@Hf J@5?f 7(Y?f
?J(Yg W.Y?g
?W.Yh W&Y?fO.e
?W&@@@@@@@(Ye ?&@@@@@@@0Y?e
W&g
?W&@g W&@@g .Y@@g
@@g @@g @@g @@g @@g @@g @@g @@g @@g @@g @@g
@@@@@@f
? ? ? ? ? ? ? ?
?@@@@@@@@6K?e?
?@@?eI'@@e? ?@@?e?N@@L?? ?@@?f@@1?? ?@@?f@@@?? ?@@?f@@5?? ?@@?e?J@@H?? ?@@?eO&@@e? ?@@@@@@0M?e? ?@@?h? ?@@?h? ?@@?h? ?@@?h? ?@@?h? ?@@?h?
?@@@@@@?g?
? ? ? ? ? ? ?
? ? ? ? ? ? ? ?
@@@@he@@@@@??
@@L?g?J@@@?e? @@1?g?7Y@@?e? @@@Lg?@?@@?e? @?@1gJ5?@@?e? @?3@L?f7H?@@?e? @?N@1?f@??@@?e? @??3@Le?J5??@@?e? @??N@1e?7H??@@?e? @?e3@L??@e?@@?e? @?eN@1?J5e?@@?e? @?e?3@W&He?@@?e? @?e?N@@@?e?@@?e? @?f3@5?e?@@?e? @?fN@H?e?@@?e?
@@@@@?e?@e?@@@@@@??
? ? ? ? ? ? ?
W26Xf 7<B1f 3=C5f
W2@@6XfV40Yf
?W&(MI')X?he W&(YeV')Xhe
?W&(Y?e?V')X?h W&(YgV')Xh
@?&@H?g?V')X?g 3@@5heV')Xg V40Yhe?V')K?f
V'@6X?e ?V'@)Xe
V'@1e ?V4@e
?O26X?e
?@K?f?O2@@@@@@@@@1?e ?3@@@@@@@@0Mg?I@?e ?V40M?
@@6Khe'6X?e ?I'@@?f?'6XV'1?e
V4@?f?V'1?V'?e
V'g
?@@6K?
I'@@hfW.f ?V4@he?W&Hf
W&5?f
?W&(Y?f W&(Yg
?W&(Y?g O&(Yh
W2@(Y?h
?O&@0Yhe
?O2@(Mhf
?@KO2@@0Y?hf ?3@@@0M?hg ?V40M?
W&g
?W&@g W&@@g .Y@@g
@@g @@g @@g @@g @@g @@g @@g @@g @@g @@g @@g
@@@@@@f
W2@@6Xf
?W&(MI')X?e ?7@HeN@1?e J@5?e?3@Le 7@H?e?N@1e @@g@@e @@g@@e @@g@@e @@g@@e @@g@@e @@g@@e 3@L?e?J@5e N@1?e?7@He ?3@LeJ@5?e ?V')KO&(Y?e
V4@@0Yf

11
KRF-V7771D/V7771DE
CIRCUIT DESCRIPTION
6. Sub microprocessor uPD78056GC-A23 (X08 : IC5)
6-1 Microprocessor periphery block diagram
(X08) IC25
CODEC
CS4226 KQG
(X08) IC30
MPEG/DSP MODE
AC3/PROLOGIC
DECODER
CS492501
(X08)
IC29
EX ROM
MX27L2000MC-20
ASIC
(X08) IC28
(X08) IC26
KAG09
TC74VHC
153FT
(X08) IC22
THX, Re-EQ
DSP56007
MAIN uCOM
(X08) IC3
uPD78078GF-086
(X08) IC5
SUB uCOM
uPD78056GC-A23
PEAK LEVEL LED
W&g
?W&@g
W&@@g
.Y@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@@@@@f
?W&?2@6Kf
O&@@@@@@@?e
?@@@@(M?I'@Le
?@@He?N@1e
?@@?f@@e
?@@?f@@e
?@@?f@@e
?@@?f@5e
?@@Le?J@He
?@@)K?O&@?e
?@@V4@0Mf
?@@?h
?@@?h
?@@?h
?@@?h
?@@?h
?@@@@@@?g
O2@@6Kf
?@@(MI'@@?e
J@(YeV'@Le
7@H?e?N@1e
@@g@@e
@@g@@e
3@L?e?J@@e
N@)XeW&@@e
?@@)KO&@@@e
I4@@0Y@5e
?J@He
W&5?e
?W&(Y?e
O&(Yf
O2@0Y?f
?@@0M?g
O2@@6Kf
?@@(MI'@@?e
J@(YeV'@Le
7@H?e?N@1e
@@g@@e
@@g@@e
3@L?e?J@@e
N@)XeW&@@e
?@@)KO&@@@e
I4@@0Y@5e
?J@He
W&5?e
?W&(Y?e
O&(Yf
O2@0Y?f
?@@0M?g
?@@?e
?@@?e
W&g
?W&@g
W&@@g
.Y@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@@@@@f
W2@@6Xf
?W&(MI')X?e
?7@HeN@1?e
J@5?e?3@Le
7@H?e?N@1e
@@g@@e
@@g@@e
@@g@@e
@@g@@e
@@g@@e
@@g@@e
3@L?e?J@5e
N@1?e?7@He
?3@LeJ@5?e
?V')KO&(Y?e
V4@@0Yf
?@@?e
?@@?e
?O2@@6X?f
@@@@@@)Xf
?J(MeI'@1f
?.Y?e?N@@f
@@f
@@f
?J@5f
?7@Hf
J@5?f
7(Y?f
?J(Yg
W.Y?g
?W.Yh
W&Y?fO.e
?W&@@@@@@@(Ye
?&@@@@@@@0Y?e
W2@@6Xf
?W&(MI')X?e
?7@HeN@1?e
?@@?e?@@?e
?@@LeJ@@?e
?3@)KO&@5?e
?V'@@@@(Y?e
?@@@@?f
?W&(?'@)X?e
W&(Y?V'@)Xe
7@H?eV'@1e
@@f?N@@e
@@g@@e
3@L?e?J@5e
V4)KeO&0Ye
I4@@0Mf
W2@@6Xf
?W&(MI')X?e
?7@HeN@1?e
?@@?e?@@?e
?@@LeJ@@?e
?3@)KO&@5?e
?V'@@@@(Y?e
?@@@@?f
?W&(?'@)X?e
W&(Y?V'@)Xe
7@H?eV'@1e
@@f?N@@e
@@g@@e
3@L?e?J@5e
V4)KeO&0Ye
I4@@0Mf
?
?
?
?
?
?
?
?
?
?
?
?
?
?@@?e?
?@@?e?
?
?
?
?
?
?
?
?@@?e?
?@@?e?
?
?
?
?
?
?
?
?O2@@6X?f
@@@@@@)Xf
?J(MeI'@1f
?.Y?e?N@@f
@@f
@@f
?J@5f
?7@Hf
J@5?f
7(Y?f
?J(Yg
W.Y?g
?W.Yh
W&Y?fO.e
?W&@@@@@@@(Ye
?&@@@@@@@0Y?e
?O2@@6X?f
@@@@@@)Xf
?J(MeI'@1f
?.Y?e?N@@f
@@f
@@f
?J@5f
?7@Hf
J@5?f
7(Y?f
?J(Yg
W.Y?g
?W.Yh
W&Y?fO.e
?W&@@@@@@@(Ye
?&@@@@@@@0Y?e
?
?
?
?
?
?
?
?
?@@@@@@@@6K?e?
?@@?eI'@@e?
?@@?e?N@@L??
?@@?f@@1??
?@@?f@@@??
?@@?f@@5??
?@@?e?J@@H??
?@@?eO&@@e?
?@@@@@@0M?e?
?@@?h?
?@@?h?
?@@?h?
?@@?h?
?@@?h?
?@@?h?
?@@@@@@?g?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
@@@@he@@@@@??
@@L?g?J@@@?e?
@@1?g?7Y@@?e?
@@@Lg?@?@@?e?
@?@1gJ5?@@?e?
@?3@L?f7H?@@?e?
@?N@1?f@??@@?e?
@??3@Le?J5??@@?e?
@??N@1e?7H??@@?e?
@?e3@L??@e?@@?e?
@?eN@1?J5e?@@?e?
@?e?3@W&He?@@?e?
@?e?N@@@?e?@@?e?
@?f3@5?e?@@?e?
@?fN@H?e?@@?e?
@@@@@?e?@e?@@@@@@??
?
?
?
?
?
?
?
W26Xf
7<B1f
3=C5f
W2@@6XfV40Yf
?W&(MI')X?he
W&(YeV')Xhe
?W&(Y?e?V')X?h
W&(YgV')Xh
@?&@H?g?V')X?g
3@@5heV')Xg
V40Yhe?V')K?f
V'@6X?e
?V'@)Xe
V'@1e
?V4@e
?O26X?e
?@K?f?O2@@@@@@@@@1?e
?3@@@@@@@@0Mg?I@?e
?V40M?
@@6Khe'6X?e
?I'@@?f?'6XV'1?e
V4@?f?V'1?V'?e
V'g
?@@6K?
I'@@hfW.f
?V4@he?W&Hf
W&5?f
?W&(Y?f
W&(Yg
?W&(Y?g
O&(Yh
W2@(Y?h
?O&@0Yhe
?O2@(Mhf
?@KO2@@0Y?hf
?3@@@0M?hg
?V40M?
W&g
?W&@g
W&@@g
.Y@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@@@@@f
W2@@@@@(e
7@@@@@0Ye
?J@?h
?75?h
J@Y?h
@@@@@6K?f
I4@@@@f
I'@@L?e
?V'@1?e
N@@?e
?@@?e
?@5?e
J@H?e
?@6Xe?W&5f
?3@)K?O&0Yf
?V4@@@0Mg

12
KRF-V7771D/V7771DE
CIRCUIT DESCRIPTION
A15 (pin3) A16 (pin5) A17 (pin6)
AC-3 / PCM L L L
MPEG H H L
DSP MODE H L L
INPUT TYPE SEL.OUTPUT DI/AI(pin79) DSG(pin78) DSB(pin77) DSA(pin76)
EXCEPT
CD1
ANALOG ONLY VIDEO2 H H OPTION OPTION
VIDEO3
V IDEO4
CD1
ANALOG VIDEO2 H H OPTION OPTION
VIDEO3
VIDEO4
CD1 L L H H
DIGITAL VIDEO2 L L L H
VIDEO3 L L L L
VIDEO4 L L H L
6-3 PORT CONTROL
6-3-1 Pin3,5,6 EX ROM CONTROL CS492501 (x08 : IC30 ) CONDITION : BOOT
6-3-2 Pin76-79 TC74HC153AF (X08 : IC26) CONTROL
Pin No. Name I/O Description L : Transmitting data to CS4925
1 25/26 O ASIC KAG09 CS4925/CS4226 SELECT H : Transmitting data to CS4226
2 N.C. I —
3 A15 O EX ROM ADDRESS SET
4 AVSS — —
5 A16 O EX ROM ADDRESS SET
6 A17 O EX ROM ADDRESS SET
7 AVREF1 — +5V
8 CS_SCDIN I CS4226 & CS4925 SERIAL DATA IN
9 CS_SCDOUT O CS4226 & CS4925 SERIAL DATA OUT
10 CS_SCCLK O CS4226 & CS4925 SERIAL CLOCK
11 MDT I Microprocessor communication MASTER DATA
12 SDT O Microprocessor communication SLAVE DATA
13 MCK I Microprocessor communication MASTER CLOCK
14 MREQ I Microprocessor communication MASTER REQUEST
15 SREQ O Microprocessor communication SLAVE REQUEST
16 DSP_SO I DSP56007(THX,Re-EQ) MASTER IN SLAVE OUT
17 DSP_SI O DSP56007(THX,Re-EQ) MASTER OUT SLAVE IN
18 DSP_CK O DSP56007(THX,Re-EQ) CLOCK
19~26 N.C. I —
27 DSP_RST O DSP56007(THX,Re-EQ) RESET
28 DSP_SS O DSP56007(THX,Re-EQ) SLAVE SELECT
29 DSP_HR I DSP56007(THX,Re-EQ) HOST REQUEST
30 PEAK_LEVEL O PEAK LEVEL LED driver
31,32 N.C. I —
33 VSS GND
34~38 N.C. I —
39 (9992/7771) I (9992/7771) model non use
40~46 N.C. I —
47 SUB_MUTE SUB MUTE Control
48-52 N.C. I —
53 CS_PDN O CODEC CS4226 POWER DOWN
54 CS_FREQ1 I CODEC CS4226 FS CHECK1
55 CS_FREQ0 I CODEC CS4226 FS CHECK0
56 N.C. I —
57 CS_26 O CODEC CS4226 CHIP SELECT
58,59 N.C. I —
60 RESET I RESET
61 CS_OVL/ERR I CODEC CS4226 OVER LEVEL/ERROR Detector
62 CS_AUDIO I CODEC CS4226 AUDIO/NO AUDIO Detector
63 CS_AC3 I CODEC CS4226 AC-3/MPEG Detector
64 DATA_IN I CODEC CS4226 DATA output detector
65 ABOOT_I I/O DSP CS4925 AUTO BOOT/INTREQ
66 CS_RST O DSP CS4925 RESET
67 CS_25 O DSP CS4925 CHIP SELECT
68 VDD — +5V
69,70 X2,1 — CERAMICS CLOCK OSCILLATION
71 IC(VPP) — GND
72,73 XT2,1 — N.C.
74 AVDD — +5V
75 AVREF0 — GND
76 DSA O DIGITAL INPUT SELECTOR TC74HC153AF
77 DSB O DIGITAL INPUT SELECTOR TC74HC153AF
78 DSG O DIGITAL INPUT SELECTOR TC74HC153AF
79 DI/AI O INPUT SELECTOR DIGITAL/ANALOG SELECT TC74HC153AF
80 INT/BOOT O CS4925 INTRQ/AUTO BOOT SELECT
6-2 Pin description
W&g
?W&@g W&@@g .Y@@g
@@g @@g @@g @@g @@g @@g @@g @@g @@g @@g @@g
@@@@@@f
?W&?2@6Kf O&@@@@@@@?e
?@@@@(M?I'@Le
?@@He?N@1e ?@@?f@@e ?@@?f@@e ?@@?f@@e ?@@?f@5e ?@@Le?J@He ?@@)K?O&@?e ?@@V4@0Mf ?@@?h ?@@?h ?@@?h ?@@?h ?@@?h
?@@@@@@?g
O2@@6Kf
?@@(MI'@@?e J@(YeV'@Le 7@H?e?N@1e @@g@@e @@g@@e 3@L?e?J@@e N@)XeW&@@e ?@@)KO&@@@e
I4@@0Y@5e
?J@He W&5?e
?W&(Y?e O&(Yf
O2@0Y?f
?@@0M?g
O2@@6Kf
?@@(MI'@@?e J@(YeV'@Le 7@H?e?N@1e @@g@@e @@g@@e 3@L?e?J@@e N@)XeW&@@e ?@@)KO&@@@e
I4@@0Y@5e
?J@He W&5?e
?W&(Y?e O&(Yf
O2@0Y?f
?@@0M?g
?@@?e ?@@?e
W&g
?W&@g W&@@g .Y@@g
@@g @@g @@g @@g @@g @@g @@g @@g @@g @@g @@g
@@@@@@f
W2@@6Xf
?W&(MI')X?e ?7@HeN@1?e J@5?e?3@Le 7@H?e?N@1e @@g@@e @@g@@e @@g@@e @@g@@e @@g@@e @@g@@e 3@L?e?J@5e N@1?e?7@He ?3@LeJ@5?e ?V')KO&(Y?e
V4@@0Yf
?@@?e ?@@?e
?O2@@6X?f @@@@@@)Xf
?J(MeI'@1f ?.Y?e?N@@f
@@f @@f
?J@5f ?7@Hf J@5?f 7(Y?f
?J(Yg W.Y?g
?W.Yh W&Y?fO.e
?W&@@@@@@@(Ye ?&@@@@@@@0Y?e
W2@@6Xf
?W&(MI')X?e ?7@HeN@1?e ?@@?e?@@?e ?@@LeJ@@?e ?3@)KO&@5?e ?V'@@@@(Y?e
?@@@@?f
?W&(?'@)X?e W&(Y?V'@)Xe 7@H?eV'@1e @@f?N@@e @@g@@e 3@L?e?J@5e V4)KeO&0Ye
I4@@0Mf
W2@@6Xf
?W&(MI')X?e ?7@HeN@1?e ?@@?e?@@?e ?@@LeJ@@?e ?3@)KO&@5?e ?V'@@@@(Y?e
?@@@@?f
?W&(?'@)X?e W&(Y?V'@)Xe 7@H?eV'@1e @@f?N@@e @@g@@e 3@L?e?J@5e V4)KeO&0Ye
I4@@0Mf
? ? ? ? ? ? ? ? ? ? ? ? ?
?@@?e? ?@@?e?
? ? ? ? ? ? ?
?@@?e? ?@@?e?
? ? ? ? ? ? ?
?O2@@6X?f @@@@@@)Xf
?J(MeI'@1f ?.Y?e?N@@f
@@f @@f
?J@5f ?7@Hf J@5?f 7(Y?f
?J(Yg W.Y?g
?W.Yh W&Y?fO.e
?W&@@@@@@@(Ye ?&@@@@@@@0Y?e
?O2@@6X?f @@@@@@)Xf
?J(MeI'@1f ?.Y?e?N@@f
@@f @@f
?J@5f ?7@Hf J@5?f 7(Y?f
?J(Yg W.Y?g
?W.Yh W&Y?fO.e
?W&@@@@@@@(Ye ?&@@@@@@@0Y?e
? ? ? ? ? ? ? ?
?@@@@@@@@6K?e?
?@@?eI'@@e? ?@@?e?N@@L?? ?@@?f@@1?? ?@@?f@@@?? ?@@?f@@5?? ?@@?e?J@@H?? ?@@?eO&@@e? ?@@@@@@0M?e? ?@@?h? ?@@?h? ?@@?h? ?@@?h? ?@@?h? ?@@?h?
?@@@@@@?g?
? ? ? ? ? ? ?
? ? ? ? ? ? ? ?
@@@@he@@@@@??
@@L?g?J@@@?e? @@1?g?7Y@@?e? @@@Lg?@?@@?e? @?@1gJ5?@@?e? @?3@L?f7H?@@?e? @?N@1?f@??@@?e? @??3@Le?J5??@@?e? @??N@1e?7H??@@?e? @?e3@L??@e?@@?e? @?eN@1?J5e?@@?e? @?e?3@W&He?@@?e? @?e?N@@@?e?@@?e? @?f3@5?e?@@?e? @?fN@H?e?@@?e?
@@@@@?e?@e?@@@@@@??
? ? ? ? ? ? ?
W26Xf 7<B1f 3=C5f
W2@@6XfV40Yf
?W&(MI')X?he W&(YeV')Xhe
?W&(Y?e?V')X?h W&(YgV')Xh
@?&@H?g?V')X?g 3@@5heV')Xg V40Yhe?V')K?f
V'@6X?e ?V'@)Xe
V'@1e ?V4@e
?O26X?e
?@K?f?O2@@@@@@@@@1?e ?3@@@@@@@@0Mg?I@?e ?V40M?
@@6Khe'6X?e ?I'@@?f?'6XV'1?e
V4@?f?V'1?V'?e
V'g
?@@6K?
I'@@hfW.f ?V4@he?W&Hf
W&5?f
?W&(Y?f W&(Yg
?W&(Y?g O&(Yh
W2@(Y?h
?O&@0Yhe
?O2@(Mhf
?@KO2@@0Y?hf ?3@@@0M?hg ?V40M?
W&g
?W&@g W&@@g .Y@@g
@@g @@g @@g @@g @@g @@g @@g @@g @@g @@g @@g
@@@@@@f
?O2@@@e
?W2@0Mf W&(Mg
?W&(Y?g ?7@Hh J@@=h 7@S@@@6Kf @@(M?I'@@?e @@H?eV'@Le @@f?N@1e @@g@@e @@g@@e 3@L?e?J@5e N@)XeW&@He ?@@)KO&@@?e
I4@@0Mf

KRF-V7771D/V7771DE
ADJUSTMENT
13
No. ITEM INPUT
SETTINGS OUTPUT SETTINGS RECEIVER SETTINGS ALIGNMENT POINTS ALIGN FOR FIG.
1 DISCRIMINATOR
(A)
98.0MHz 1kHz,
±40kHz dev.
70dBf (ANT. input)
Connect a
DC voltmeter
between CN12 1
and CN12 2(X11)
MONO
98.0MHz L604 (X11) 0V (a)
2DISTORTION
(MONO)
(A)
98.0MHz 1kHz,
±40kHz dev. MONO
70dBf (ANT. input)
(B) MONO
98.0MHz L605 (X11) Minimum distortion (a)
3DISTORTION
(STEREO)
(C)
98.0MHz 1kHz,
±40kHz dev.
Selector : L or R Pilot
: ±6kHz dev.
70dBf (ANT. input)
(B) AUTO
98.0MHz IFT(RF
FRONTEND
: A601)
Minimum
distortion
(L or R) (a)
4 TUNING LEVEL
(A)
98.0MHz MONO
1kHz, ±40kHz dev.
25dBf (ANT. input)
(B) MONO
98.0MHz VR601 (X11)
Adjust VR601
and stop at the
point where ED1
(TUNED) goes
on.
(a)
FM SECTION : SELECTOR : FM *Adjust NO.1 and NO.2 repeat.
AUDIO SECTION SPEAKER : A PREOUT : OFF PROLOGIC : ON
<1> IDLE CURRENT —
Connect a DC
voltmeter across
CN1 (each port)
1, 2 pin : L
5, 6 pin : R
3, 4 pin : SL
7, 8 pin : SR
9, 10 pin : C
(FRONT 2ch
MODE)
Volume:0
VR1(L)
VR2(R)
VR3(SL)
VR4(SR)
VR5(CENTER)
(X07-)
10mV
SYSTEM
CONTROL
FRONTSPEAKERS
(4-16 )
CENTER
SPEAKER
(4-16 )
SURROUNDSPEAKERS
DIGITAL IN
VIDEO 2
COAXIAL
VIDEO 3
COAXIAL
VIDEO 4
OPTICAL
CD 1
OPTICAL
SL 16 XS 8
(
SL 16
)(
XS 8
)
(4-16 )
SWITCHED TOTAL
90W MAX.
L
RAL RLC
R
B
SL 16
TEXT
L
R
R
ANTENNA
AM
- FM 75
GND
CD1
PHONO
MD/
TAPE1
REC
OUT
PLAY
IN
REC
OUT
PLAY
IN
PLAY
IN
PLAY
IN
CD2 /
TAPE 2
MONITOR
MONITOR
OUT
FRONT
FRONT
SURROUND SURROUND
CENTER
CENTER
SUB
WOOFER
SUBWOOFER
L
L
R
L
R
VIDEO S VIDEO
PRE OUT VIDEO4 6CH. INPUT
AUDIO
VIDEO 3
VIDEO 4
PLAY
IN
VIDEO 2
VIDEO 1
L
R
AUDIO
PLAY
IN
REC
OUT
+
-
6CH
2CH
VIDEO 4
INPUT
(A)
(B)
(C)
FM SG
FM SG
AG
MPX AG
AC voltmeter
Dummy antenna
Oscilloscope Distortion meter
SYSTEM CONNECTIONS
W&g
?W&@g
W&@@g
.Y@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@@@@@f
?W&?2@6Kf
O&@@@@@@@?e
?@@@@(M?I'@Le
?@@He?N@1e
?@@?f@@e
?@@?f@@e
?@@?f@@e
?@@?f@5e
?@@Le?J@He
?@@)K?O&@?e
?@@V4@0Mf
?@@?h
?@@?h
?@@?h
?@@?h
?@@?h
?@@@@@@?g
O2@@6Kf
?@@(MI'@@?e
J@(YeV'@Le
7@H?e?N@1e
@@g@@e
@@g@@e
3@L?e?J@@e
N@)XeW&@@e
?@@)KO&@@@e
I4@@0Y@5e
?J@He
W&5?e
?W&(Y?e
O&(Yf
O2@0Y?f
?@@0M?g
O2@@6Kf
?@@(MI'@@?e
J@(YeV'@Le
7@H?e?N@1e
@@g@@e
@@g@@e
3@L?e?J@@e
N@)XeW&@@e
?@@)KO&@@@e
I4@@0Y@5e
?J@He
W&5?e
?W&(Y?e
O&(Yf
O2@0Y?f
?@@0M?g
?@@?e
?@@?e
W&g
?W&@g
W&@@g
.Y@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@@@@@f
W2@@6Xf
?W&(MI')X?e
?7@HeN@1?e
J@5?e?3@Le
7@H?e?N@1e
@@g@@e
@@g@@e
@@g@@e
@@g@@e
@@g@@e
@@g@@e
3@L?e?J@5e
N@1?e?7@He
?3@LeJ@5?e
?V')KO&(Y?e
V4@@0Yf
?@@?e
?@@?e
?O2@@6X?f
@@@@@@)Xf
?J(MeI'@1f
?.Y?e?N@@f
@@f
@@f
?J@5f
?7@Hf
J@5?f
7(Y?f
?J(Yg
W.Y?g
?W.Yh
W&Y?fO.e
?W&@@@@@@@(Ye
?&@@@@@@@0Y?e
W2@@6Xf
?W&(MI')X?e
?7@HeN@1?e
?@@?e?@@?e
?@@LeJ@@?e
?3@)KO&@5?e
?V'@@@@(Y?e
?@@@@?f
?W&(?'@)X?e
W&(Y?V'@)Xe
7@H?eV'@1e
@@f?N@@e
@@g@@e
3@L?e?J@5e
V4)KeO&0Ye
I4@@0Mf
W2@@6Xf
?W&(MI')X?e
?7@HeN@1?e
?@@?e?@@?e
?@@LeJ@@?e
?3@)KO&@5?e
?V'@@@@(Y?e
?@@@@?f
?W&(?'@)X?e
W&(Y?V'@)Xe
7@H?eV'@1e
@@f?N@@e
@@g@@e
3@L?e?J@5e
V4)KeO&0Ye
I4@@0Mf
?
?
?
?
?
?
?
?
?
?
?
?
?
?@@?e?
?@@?e?
?
?
?
?
?
?
?
?@@?e?
?@@?e?
?
?
?
?
?
?
?
?O2@@6X?f
@@@@@@)Xf
?J(MeI'@1f
?.Y?e?N@@f
@@f
@@f
?J@5f
?7@Hf
J@5?f
7(Y?f
?J(Yg
W.Y?g
?W.Yh
W&Y?fO.e
?W&@@@@@@@(Ye
?&@@@@@@@0Y?e
?O2@@6X?f
@@@@@@)Xf
?J(MeI'@1f
?.Y?e?N@@f
@@f
@@f
?J@5f
?7@Hf
J@5?f
7(Y?f
?J(Yg
W.Y?g
?W.Yh
W&Y?fO.e
?W&@@@@@@@(Ye
?&@@@@@@@0Y?e
?
?
?
?
?
?
?
?
?@@@@@@@@6K?e?
?@@?eI'@@e?
?@@?e?N@@L??
?@@?f@@1??
?@@?f@@@??
?@@?f@@5??
?@@?e?J@@H??
?@@?eO&@@e?
?@@@@@@0M?e?
?@@?h?
?@@?h?
?@@?h?
?@@?h?
?@@?h?
?@@?h?
?@@@@@@?g?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
@@@@he@@@@@??
@@L?g?J@@@?e?
@@1?g?7Y@@?e?
@@@Lg?@?@@?e?
@?@1gJ5?@@?e?
@?3@L?f7H?@@?e?
@?N@1?f@??@@?e?
@??3@Le?J5??@@?e?
@??N@1e?7H??@@?e?
@?e3@L??@e?@@?e?
@?eN@1?J5e?@@?e?
@?e?3@W&He?@@?e?
@?e?N@@@?e?@@?e?
@?f3@5?e?@@?e?
@?fN@H?e?@@?e?
@@@@@?e?@e?@@@@@@??
?
?
?
?
?
?
?
W26Xf
7<B1f
3=C5f
W2@@6XfV40Yf
?W&(MI')X?he
W&(YeV')Xhe
?W&(Y?e?V')X?h
W&(YgV')Xh
@?&@H?g?V')X?g
3@@5heV')Xg
V40Yhe?V')K?f
V'@6X?e
?V'@)Xe
V'@1e
?V4@e
?O26X?e
?@K?f?O2@@@@@@@@@1?e
?3@@@@@@@@0Mg?I@?e
?V40M?
@@6Khe'6X?e
?I'@@?f?'6XV'1?e
V4@?f?V'1?V'?e
V'g
?@@6K?
I'@@hfW.f
?V4@he?W&Hf
W&5?f
?W&(Y?f
W&(Yg
?W&(Y?g
O&(Yh
W2@(Y?h
?O&@0Yhe
?O2@(Mhf
?@KO2@@0Y?hf
?3@@@0M?hg
?V40M?
W&g
?W&@g
W&@@g
.Y@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@g
@@@@@@f
O2@@6Kf
?@@(MI'@@?e
J@(YeV'@Le
7@H?e?N@1e
@@g@@e
@@g@@e
3@L?e?J@@e
N@)XeW&@@e
?@@)KO&@@@e
I4@@0Y@5e
?J@He
W&5?e
?W&(Y?e
O&(Yf
O2@0Y?f
?@@0M?g

J601
FM 75
GND
AM
CN5 CN11
J9
MONI A
MONITOR
3
OUT
2 PLAY IN
VIDEO 4
VIDEO 3
1 PLAY IN
IN
OUT
IN
J5
J4
3 PLAY IN
VIDEO 2
2 REC OUT
1 PLAY IN
VIDEO 1
COMPOSITE)
J11
VIDEO
VIDEO
VIDEO 3
VIDEO 4
MONITOR
OUT
Lch 2
PLAY IN
VIDEO 4
Rch 1
J3
Rch 3
Lch 4
VIDEO 3
PLAY IN
Rch 3
VIDEO 1
REC OUT
Lch 4
Rch 1
VIDEO 2
PLAY IN
Lch 2
J4
PLAY IN
VIDEO 1
Rch 5
Lch 6
E9 WH3 E10
CN26CN25
CN11 CN27
E18
CN2 CN10
CN22 CN28
CN7
CN29
J4
A1
A2
VIDEO2
COAXIAL
VIDEO3
COAXIAL
VIDEO4
OPTICAL
OPTICAL
CD1
IN
DIGITAL
CN11
WH5
E2
WH3
E1
WH6
CN14
E5
WH4 E5CN17 E6 WH5 E7
REC OUT
PLAY IN
MD/TAPE
Lch 6
Rch 5
Lch 4
Rch 3
Lch 2
J1
Rch 1
Lch 4
Rch 3
Rch 1
Lch 2
J2
1 Rch
J6
2 Lch
6ch
REC OUT
CD2/
CD1
PLAY IN
CN24
CN4
CN23
CN3 CN1
CN21
WH2
E1
AUX
AV
Rch
VIDEO
Lch
J2
S-VIDEO
J3
E4 CN32
R1
PHONO J1
L2
A SP.
Lch
Rch
Lch
Rch
B SP.
FRONT SP.
J1
CENTER SP.
SURROUND SP.
Rch
J2
Lch
J11
S1
POWER
105 C
TS1
FAN
COOLING
TEMP.
(105 C)
SW
CN1
IDLE
PIN
TEST
1
2
3
4
1
2
3
T1
CN51 CN10
CN11 E6
WH6
WH10
WH11
E11 E13
CN7
E12 WH12 E14 TS1
65 C
(65 C)
SW
TEMP.
E7 WH1 E6
CN8
OUTLETS
CN33
E17
E16
WH7
WH2 WH3
SL16
XS8/
S1
CN19
WH4 FFCFFC
WH10
FFC
KRF-V7771DE (X07-2942-71)
KRF-V7771D (X07-294X-XX)
E11 WH8 E12
CENTERch 1
SWch 2
Rch 3
Lch 4
J7
E9
J2
J3 SYSTEM
CONTROL
CD
TEXT
J1
4 SLch
3 SRch
5 Cch
6 SWch
PRE OUT
WH7 CN12
PLAY
REC
PLAY
2
1
(PLAY IN)
(PLAY IN)
E3
SURROUND
(VIDEO/
6ch
VIDEO 4
INPUT
S2 2ch/
6ch
E2
TAPE2
CN15
CN13
E10
WH2
(FRONT)
CN12
(S1 VIDEO)
1
2
WH1
WH1
WH6
CN6 E8 PHONES
J21
WH4
2
1
4
3
E601
115115
11
14131
11314
111
1
1
20 1 4
20 41
19
91
113
131
151
115
151
5
1
5
1
4
1
4
1
1
1
18
18
1
1
9
9
151
115
115
P1
200mV/47k
9
1
9
1
P3
WW
F5
T1
YEL
WH19
WH20
BRN
AC230V~ 50Hz
7
Lch 1
2
3
SLch
Rch
4
6
5
SRch
Cch
8
9
10
ABB.
EUROPE
DESTINATION
COUNTRY
U.K.
UNIT No.
0-51
E
T
GRY
RED
BLK
YEL
WHT
18
16
19
20
21
22
23
10
12
11
17
14
13
15
1
3
5
WH32 WHT
WH31 RED
0V
50MHz
29
1
29
1
66
11
1
3
1
3
1
3
3
1
3
1
11
9 9
F7 2
1
113
4
1
11
1
F4
F3
F2
F1
WH15
WH14
UNIT No.
COUNTRY
EUROPE 2-71
ABB.
E2
DESTINATION
WH601
11
77
15
1
P1
P2
2-71
15
1
E24
E23
15 15
15
1
15
1
15
1
13
115
1
12
WH17
WH18
WH16
3
1
1
3
P1 P2
AC230V~
14
1
3
1
3
TUNER UNIT
(X11-3822-70)
(D/7)
(X11-3822-70)
(D/7)
(X11-3822-70) (A/7)
(F/7)
(X25-6202-70) (A/7)
(X07- ) (C/8)
(X07-) (G/8)
(B/8)
(D/8)
(X07-294X-XX) (A/8)
(E/7)
(E/8)
(G/7)
KRF-V7771DE(E2)
(X25-) (C/7)
(X07-) (H/8)
ONLY
ELECTRIC UNIT
POWER AMPLIFIER UNIT
DISPLAY UNIT
(X25-6202-70)
ELECTRIC UNIT
SURROUND UNIT
(X08-2942-70) (C/7)
(B/7)
(B/7)
CONTROL UNIT CONTROL UNIT
KRF-V7771D(E,T)
(X25- )
(C/7)
(X25- )
(X11- ) (X11- )
(F/7)
(G/7)
(X07-)
(X07- )
(X25-)
(E,E2) TYPE
(X07-)
(X25- )
(X11- )
WIRING DIAGRAM
KRF-V7771D/V7771DE
14
W&g
?W&@g W&@@g .Y@@g
@@g @@g @@g @@g @@g @@g @@g @@g @@g @@g @@g
@@@@@@f
?W&?2@6Kf O&@@@@@@@?e
?@@@@(M?I'@Le
?@@He?N@1e ?@@?f@@e ?@@?f@@e ?@@?f@@e ?@@?f@5e ?@@Le?J@He ?@@)K?O&@?e ?@@V4@0Mf ?@@?h ?@@?h ?@@?h ?@@?h ?@@?h
?@@@@@@?g
O2@@6Kf
?@@(MI'@@?e J@(YeV'@Le 7@H?e?N@1e @@g@@e @@g@@e 3@L?e?J@@e N@)XeW&@@e ?@@)KO&@@@e
I4@@0Y@5e
?J@He W&5?e
?W&(Y?e O&(Yf
O2@0Y?f
?@@0M?g
O2@@6Kf
?@@(MI'@@?e J@(YeV'@Le 7@H?e?N@1e @@g@@e @@g@@e 3@L?e?J@@e N@)XeW&@@e ?@@)KO&@@@e
I4@@0Y@5e
?J@He W&5?e
?W&(Y?e O&(Yf
O2@0Y?f
?@@0M?g
?@@?e ?@@?e
W&g
?W&@g W&@@g .Y@@g
@@g @@g @@g @@g @@g @@g @@g @@g @@g @@g @@g
@@@@@@f
W2@@6Xf
?W&(MI')X?e ?7@HeN@1?e J@5?e?3@Le 7@H?e?N@1e @@g@@e @@g@@e @@g@@e @@g@@e @@g@@e @@g@@e 3@L?e?J@5e N@1?e?7@He ?3@LeJ@5?e ?V')KO&(Y?e
V4@@0Yf
?@@?e ?@@?e
?O2@@6X?f @@@@@@)Xf
?J(MeI'@1f ?.Y?e?N@@f
@@f @@f
?J@5f ?7@Hf J@5?f 7(Y?f
?J(Yg W.Y?g
?W.Yh W&Y?fO.e
?W&@@@@@@@(Ye ?&@@@@@@@0Y?e
W2@@6Xf
?W&(MI')X?e ?7@HeN@1?e ?@@?e?@@?e ?@@LeJ@@?e ?3@)KO&@5?e ?V'@@@@(Y?e
?@@@@?f
?W&(?'@)X?e W&(Y?V'@)Xe 7@H?eV'@1e @@f?N@@e @@g@@e 3@L?e?J@5e V4)KeO&0Ye
I4@@0Mf
W2@@6Xf
?W&(MI')X?e ?7@HeN@1?e ?@@?e?@@?e ?@@LeJ@@?e ?3@)KO&@5?e ?V'@@@@(Y?e
?@@@@?f
?W&(?'@)X?e W&(Y?V'@)Xe 7@H?eV'@1e @@f?N@@e @@g@@e 3@L?e?J@5e V4)KeO&0Ye
I4@@0Mf
? ? ? ? ? ? ? ? ? ? ? ? ?
?@@?e? ?@@?e?
? ? ? ? ? ? ?
?@@?e? ?@@?e?
? ? ? ? ? ? ?
?O2@@6X?f @@@@@@)Xf
?J(MeI'@1f ?.Y?e?N@@f
@@f @@f
?J@5f ?7@Hf J@5?f 7(Y?f
?J(Yg W.Y?g
?W.Yh W&Y?fO.e
?W&@@@@@@@(Ye ?&@@@@@@@0Y?e
?O2@@6X?f @@@@@@)Xf
?J(MeI'@1f ?.Y?e?N@@f
@@f @@f
?J@5f ?7@Hf J@5?f 7(Y?f
?J(Yg W.Y?g
?W.Yh W&Y?fO.e
?W&@@@@@@@(Ye ?&@@@@@@@0Y?e
? ? ? ? ? ? ? ?
?@@@@@@@@6K?e?
?@@?eI'@@e? ?@@?e?N@@L?? ?@@?f@@1?? ?@@?f@@@?? ?@@?f@@5?? ?@@?e?J@@H?? ?@@?eO&@@e? ?@@@@@@0M?e? ?@@?h? ?@@?h? ?@@?h? ?@@?h? ?@@?h? ?@@?h?
?@@@@@@?g?
? ? ? ? ? ? ?
? ? ? ? ? ? ? ?
@@@@he@@@@@??
@@L?g?J@@@?e? @@1?g?7Y@@?e? @@@Lg?@?@@?e? @?@1gJ5?@@?e? @?3@L?f7H?@@?e? @?N@1?f@??@@?e? @??3@Le?J5??@@?e? @??N@1e?7H??@@?e? @?e3@L??@e?@@?e? @?eN@1?J5e?@@?e? @?e?3@W&He?@@?e? @?e?N@@@?e?@@?e? @?f3@5?e?@@?e? @?fN@H?e?@@?e?
@@@@@?e?@e?@@@@@@??
? ? ? ? ? ? ?
W26Xf 7<B1f 3=C5f
W2@@6XfV40Yf
?W&(MI')X?he W&(YeV')Xhe
?W&(Y?e?V')X?h W&(YgV')Xh
@?&@H?g?V')X?g 3@@5heV')Xg V40Yhe?V')K?f
V'@6X?e ?V'@)Xe
V'@1e ?V4@e
?O26X?e
?@K?f?O2@@@@@@@@@1?e ?3@@@@@@@@0Mg?I@?e ?V40M?
@@6Khe'6X?e ?I'@@?f?'6XV'1?e
V4@?f?V'1?V'?e
V'g
?@@6K?
I'@@hfW.f ?V4@he?W&Hf
W&5?f
?W&(Y?f W&(Yg
?W&(Y?g O&(Yh
W2@(Y?h
?O&@0Yhe
?O2@(Mhf
?@KO2@@0Y?hf ?3@@@0M?hg ?V40M?
?O2@@6X?f @@@@@@)Xf
?J(MeI'@1f ?.Y?e?N@@f
@@f @@f
?J@5f ?7@Hf J@5?f 7(Y?f
?J(Yg W.Y?g
?W.Yh W&Y?fO.e
?W&@@@@@@@(Ye ?&@@@@@@@0Y?e
W2@@6Xf
?W&(MI')X?e ?7@HeN@1?e J@5?e?3@Le 7@H?e?N@1e @@g@@e @@g@@e @@g@@e @@g@@e @@g@@e @@g@@e 3@L?e?J@5e N@1?e?7@He ?3@LeJ@5?e ?V')KO&(Y?e
V4@@0Yf

ACEGIBDFHJ
2
1
3
5
7
4
6
X07-294X-XX A/8 (J70-1153-11)
CENTER
SPEAKER SURROUND
SPEAKERS
LR
BA
FRONT SPEAKERS
LRLR
BB EE EE BBBBEE EEBB
BB EEEE EBBBBE EEBB
129
B
E
B
E
X07
H/8
X07
G/8
1
3
1
3
X07 E/8
X07 B/8
X07 F/8
X07 D/8
IGO
EB
X07
C/8
BE
12
AC OUTLET
1
6
EBB
EB
EB
EB
EEB
110
EBEBEBEBEB
BE
BE
BE
BE
EB
BE
B
E
13
1
6
EB
1
15
EB
E
B
E
B
EB
B
E
B
E
13
EBB E EE BB
1
31
3
POWER
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD(Component side view)
15 16

KLNPRTMOQS
2
1
3
5
7
4
6
D12
Q10
Q9
D10
D14
D2
D1
D7
D8
D13
D9
D35
D34
Q51
Q52
Q48
Q47
Q46
Q45
D32
Q34
Q32
Q33
D18
Q11
Q31
Q49 Q50
D11
R145
R144
R159
R151
R152
R157
R158
R153 R154
R155
R100
R106
R133
R134
R142
R143
R139
R140
R124
R127
R131
R132
R130
R128
R129
R210
R211
R208
R209
R212
R235
R236
R239
R242
R243 R240
R241
R229
R226
R227
R230
R234
R231
R232
R183
R181
R182
R188
R189
R172
R180
R178
R206
R207
R192
R193
R190
R191
R194
R195
R5
R6 R3 R4
R7
R8
R27
R21 R22
R20
R26
R23
C11
C13
C16
C18
C14
C31
C33
R2
C40
C41
C24
C19
C20
C29
C30
C26
R95
R85
R87
R86
R82
R84
R83
R98
R97
R67
R68
R89
R88
R96
R90
R73
R74
R71
R72
R77
R78
R75
R76
R94
R93
R80
R79
R92
R91
R50
R61
R62
R59
R60
R65
R66
R63
R53
R54
R51
R52
R58
L39
L41
C15
C281
R48
L40
R324
R319
R560
R565 R566
R564
R567
R466
C238
C237
R467
C199
R461
R459
C241
C233
R465
R468R469
R434
C198
C212
C211
R435
C197
R428
R429
R427 R426
C215 C216
C207 C208
R433 R432
R436R437
C141
C188
C189
R408
R409
R402
R403R401
R400
R450
C195
R562
C109
R399
C183
C80
C78
C81
C79
R505
C149
C151
C148
C150
C144 C143
R314
R313
R312
R504
R509
R373
R374
R370
C76
R301
C178
C72
C71
C67
C68
C70
R394
R396
R395
R393
C175
C61
C63
C176
L34 C62 L33
C177
C179
R389
L42
C64
R410
R413
R411
R412
R444
R398
R443
R442
R415
R416
R417
C73
C75
R507
R506 R569
R303
C173
R392
C69
R360
C119
C118
C124 C117
C116
C115
C120
R347
R343
R340
R336
C130
C128
C129 C133
C134
R361
C276
C125
C126
C127
C123
C222
C250
C228
R363
R364
R362
C132
C135
C122
C156
L27
L26
C247
R561
C139
C275
C154
R545
R356
L35
C226
C225
R387
L32
C167
L31
C166
R380
R381
R383 R382
R376
R378
R377
C155
R379
R386
R384
R385
C35 C36
R523
R522
R530
R524 R525
R526
R527
R521
R528 R529
R531
R532
R538
R536
R537
R534 R533
R535
R543
R542
R541
R540
R539
R544
R349
R351
R354
R355
R353
C248
C249
R245
R511
C131
R546 R573
C287
C278 C277
C28
R329
C104
C102
R328
R327
C85
R318
R311
R487 R486
C259 C260
C267 C268
R320
C90
R321
C93
L9
L6
L10
C100
R325
C86
R464
C234
C242
C3
C2
C89C87C91
C180
C282
R326
C101
C103
C84
R458
C94
R483
R482
R480R481
L38
W1
L36
L37 C202
R488
R489
C201
R491 R490
C96
R322
C264
C263
R460
C200
EB
EB EB
EB EB
EB
BE
EB
EB
BE EB
BE BE EB
R563
R568
C82
R316
R323
C97
EB
R1
R146 R163 R164
R165
R160
R161
R162
R169
R170
R171
R166
R167
R168
R150
R147
R148 R149
R156
R114
R115
R113
R111
R112
R116
R120
R121
R119
R117
R118
R103
R104
R102
R101
R105
R109
R110
R108
R107
R136
R137 R135
R138
R141
R125
R126
R122 R123
R219
R220
R217
R218
R215
R216
R213
R214
R228
R233
R184
R185
R186
R187
R174
R175
R173
R176
R179
R177
R201
R202
R199
R200 R203
R204
R205
R197
R198
R196
R99
R13 R14
R11
R12 R17
R18
R15
R16
R9
R10
R33
R19
R25
R24
C23
R81
R69 R70
R49
R57
R55
R56
R330
C108
R221
R238
R41R42
R39
R40
C280
C279
C284
C285
C283
L4
L5
C7
C99 C98
R492 R494
R493
R495 C272
C271
C257
C261 C262
R479 R478
R476R477 C258
R475 R474
R484
R485
R470 R472R471R473 C246
C245
C231
C235 C236
R457 R456
R454R455 C232
R453 R452
R462R463
R438 R440R439
R441 C220C219
C205
C209 C210
R425 R424
R422
R423 C206
R421 R420
R571
R570
L21
L22L23
C190 C191
R406
R407
R404 R405
C186
C187
C106
C107
C194
C140
R317
R300
R310
R315
R309
R500
R508
R503 R501
R502
R414
R306
R304
R305
C65
R445
R308
R307
C74
R391
C66 R302
C172
R388
R390
R446
R447
R448
R449
C174
R333
R430
R357
R358
R346
R345 R341
R342
R339
R338
R335R337
R334
R431
R359
R368
C224
R369
C273
C274
R365
C136
R510
R366
R367
C223
R559
C137
C138
R558
C4
C163
C162
L29
L28
L30
C158
C159
C161
C160
C164
C165
C230
R350
R348
R352
C121
R553
R552
R551
R554
R555
R556
L3
L2
C6
C5
C39
C38
L8
L7
R547
R246
R572
L43
C288
EB
51 50 30
81
21 20 80
41
16
80 1
31
100
40 61
60
1
1
14
15
1
28
8
9
1
61
1
60 40
739
6
18
1
32
16 17
80 21
40
28
17 29
20
41
44
78
14
1
23
18
114
144
12
114
8
7
4
145
78
1
16
1
14
33
34
22 2311
98
7
8
41
20
21 80 11 10
40 61
1
60 20 1
45
8
1
1
45
85
81
4
8
54
18
54
18
54
1
8
54
1
8
54
1
8
54
1
8
54
1
14 8
17
T
G
R
X3
X2
R244
C21
C22
C32
C34
C12
C27
C37
C25
G
D
B
6ch
X58
C157
C286
C42
X4
C269 C265
C266 C239
C240
C213
C214
C152
C142
R371
C145
C146
C153
R372
R375
C170
C168
C229
C88
C95
C270
C92
C244
C243
C218
C217
C193
C192
C169
C171
C147
C83
C110
X1
111 115
115
13
test
11
15
GI O
IGO
IGO
115
1
1
5
13
IGO
GI
O
IC4
Q8
D15
D16
IC1
IC3
IC5
IC30
IC28
IC22
IC25
IC29
IC24
IC27
IC26
D17
IC21
IC55 IC54
IC53 IC52
IC51 IC50
IC48
IC49
D31
IC23
D33
IC32
IC31
IC37
A4
IC38
IC36
E1
IC2
WH3
CN19
J1
CN13
J2 J3
CN17
CN14
CN15
CN12
S1
J4
A2A1 A3
CN11
IC34
IC35
IC33
S2
IR CONT.
RDS
X08-2942-70 (J70-1250-11)
IC6
3.3V AVR
protection
L R
C
SW
Lt Rt
LS RS
output
LPF VIDEO2
COAXIAL
INPUT
VIDEO3
COAXIAL
VIDEO4
OPTICAL
OPTICAL
CD1
OPTICAL
OUTPUT
SL16
TEXT
SYSTEM
CONTROL
INPUT
VIDEO4
P2
SYSTEM I/O
digital
SEL
sub DSP
Format
Converter
AVR
input
buffer codec
OSC
main DSP
sub u-com
main u-com
P1
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD(Component side view)
17 18

UWYAAACVXZABAD
2
1
3
5
7
4
6
C17
C14
C15
C13
C11
C12
C23 C24
C18
C16
C3 C2
C4
C6
C5
C10
C9
C7 C1C8 C32
C33 C31
C27
C28
C36 C34
C35
R379
R387
R388
R380
R378
R368
R369
R367
R377
R370
R36
R12
R11 R10
R9
R16
R15
R14
R13
R3 R4
R1
R2
R7
C301
C302
R8
R5
R6
R18
R30
R31
R28
R29
R34
R35
R32
R33
R19
R21
R20
R26
R27
R24
R25
R74
R75
R73
R78
R76
R77
C258
C257
C252
R258
C305
C304
C303
C306
C309
C308
C307
C340
C320
C319
C310
C315
C316
C265
C270
C263
C266
C268
C267
C269
R266
R265
R268
R267
R253 R254
R251 R252
R255
R256
R269
R345
R343 R344
R389
R390
R305
R306
R303
R304
R309
R310
R307
R308
R302
R273
R274
R271
R272
R301
R322
R323
R320
R321
R326
R324
R325
R319
R313
R314
R311
R312
R317
R318
R315
R316
W311
C391
C392
C386
C380
C385
C379
C354
C372
C362
C123
C218
C217
C216
C124
C220
C219 C215
C169
C168
C167
C158
C157
C155
W312
C208
C207
C125
C126
C170
C205
C109
C110
R227
R228
R177
R178
R201
R202
R167 R168
R165
R166
R164
R163
R162
R214
R215
R212
R213
R216
R217
R218
R205
R206
R203
R204
R207
R211
R208
R361
R381
R382
R362
R118
R112
R113
R111
R116
R117
R114
R115
R156
R157
R154
R155
R161
R158
R132
R131
R153
R103
R104
R107
R108
R105
R106
R383
R372
W313W314
R363
R365
R385
R395
C376
R386
C396
C395
C375
R396
C393
C394
R384
W310
R391
C383
C357
C381
R371
C358 R373R393
R375
C366 R376
C390
C389
C365
R394
C387
C388
R374
R366C384 R392 C382
R364
W306
W309
C601 R605
R607
R675
C684
W688
W327
R257
R337
R327
R336
R335
R329
R332
R334 R328
R333 R330
R331
R338
R693
C689
R139
R138
R135
R690
W653
C691 C692
R691
R647
R645
W684
C690
W660
C636
R643
R648
R618
R619
R620
W685
W659
C681
C605
C606
C602
C603
C682
C678
C675
C611
C612
C625
C626
C624
C642
C641
C640
C613
C680
C622
C652
C645
C647
C650
C651
C618
C620
C643
C644
R611
R655
R656
R653
R654
R657
R651
R652
R649
R642
R680
R682
R610
R614
R612
R615
R616
R617
R603
R604
R601
R608
R609
R606
R635
R639
R638
R623
R628
R625
R676
R674
R678
R646 R627
C679
R685
C676
C631
W651
R636
W655
R683
R692
R659
R658
W652
C686
C630
R672
C671
R673
C670
W680
R688
W654
C685
R686
R687
C687
R136
R137
C313
R192
R210
R209
R412
W308
R410
R409
R411
R191
R542
R544
C140
R408
R406
R188
C508
R190
C146
R222
R230
R229
R221
C145
R189
W307
R175
R172
R186
R160
R152
C166 C163
R224
C213
R225
R223
W331
W319
R543
R541
R342
R356
W303
W328
R532
R534
R531
R533
C542
R536 R535
R353
R354
R341
R340
R349
R339
R350
R355
R359
C541
R351
R352
C534 R538 C533
C524
C510 R514 R502 C514 C520
W326 C512 C518
C516 R520
R347
R180
R173
R171
C325 C522
R518
R512
R516
R510
R508
W325
R504
R506
C506
C504
C502
W305
R174
R346
R179
C139 R185
R159
R151
R407 R405
R187
R110
R102
C122 R182
C134
R124
R128 C116
R122
C128
C106 R127
C119
R134
R133
C121
R101R109
C133R181 R129
R123 R121 C115 C105
C127 R125
R517
C517
C519
R511
R515
R519
C515
C513
C511
R509
W329
C523
R126
W304
R507
R501
W323
R503 R505
R348
C339
R403
R401
R183
C107
C509 C507
R513
C501
C503 C505 C326
R196
R197
R198
R199
C521
R402
R404 R184
C165
R537
114
15
28
114
15
28
15 28
14 1
EB
EB
EB
EB EB EB
EB
EB
EB
EB
EB
EB
EB
EB
EB
EB
EBEBEB
EB
EB
EB
EB
EB
EB EB
EBEBEB
EBEB
EB EB
EB
EB
EBEB EB EBEB EB
EB
W321
R243
R241
R245
15 28 R247
C238
C232
C234
C235
R238
R293
R294
R296
R295
R237
C240
R249
14 R248
R239
R240 C231
C237
1
C239
C236
R235
C229
R231
R233
C228
R242
R232
R234
C230
R236
C226C225
C233
R246
R244
C227
1
14
C86
R89
R90
C92
C91
C241
C242
W318
R555
R556
C54
C53
R70
15
R69
R71
28
C55
R53
R55R47
R45
C41
R44
R42 R43
R41
C42
R48
R46
C44 C43 C45
R51
R49
R52
R50
C46
R56
R54
C48
R63
C49
R60
R58
C50
C47
R62
R64
R59
R57
C52
R61
C51
Q44
Q35
Q36
Q34
Q33
Q32
Q31
IC2
IC1
D5
D6
Q43
Q12
Q5
Q4
Q7
Q6
Q1
Q3
Q2
Q9
Q11
Q10
Q8
D12
D615
Q602
Q601
Q46
Q45
Q48
Q47
Q611Q610
D601
D613
D611
Q612
Q606
Q614
Q607
D3
D4
Q21
Q22
Q19
Q20 Q23
Q24 Q16
Q15
Q18
Q17
D13
IC42
D2
IC18
IC4
OFF
ON
WHT
GRN
T.METER
FM
TUNED
DATASEL CLKSEL STBSEL
D.GND
STBVOL DATAVOL CLKVOL
SW-MUTE
A-MUTE
115
-B +B
-B +B
ATT
W54
C342
C341
C37
C30
C38
C40
C39
C22
C21
C26
C29
C25
C253
C318
C322
C321 C317
C254
W12
C251
R17
C314
W27
C348
W19
C347
C349
C356
C355
C346
C345
C103
C104
C374
C373
C377
C368
C360
C359
C364
C367
C363
C210
C209
C204
C153
C154
C159
C203
C160
C111
C112
W186
W164
C118
C117
C532
C378
C353 C361 C371
C156
C206
C108
W46
W11
C143
C147
C144
C148
W188
C171
C172
W190
W192
W189 W203
W210
C211
W177
W191
C137
C141
C138
C142
C131
C135
C132
C136
W206
W211
W176
W227
C531
W162
C212
W205
W216
W215
W214
W209
W208
R358
W212
W217
W15
W144
W226
W21
W24
R357
C260
C259
W213
W157
W187
W155
W185
W142
W133
W228
W231
W232
C350
W22
W39
W40
W37
W58
W65
W25
W16
W33
W13
W47
W17
W55
W20
W23
W10
W38
W50
W56
W42
W36
W26
W44
W14
W60
W35
W43
W41
W61
W48
W45
W49
W66
W52
W62
W59
W53
W57
W63
W68 W67
W29
W70
W73
W64
W30
W28 W32
W51
W31
W34
W74
W75
W76
W69
W71
W72
W148
W207
W105
W5
W3
W2
W18
W7
W6
W8
W1
W131
W152
W82
W81
W80
W96
W89
W84
W97
W130
W86
W134
W93
W109
W108
W123
W161
W113
W92
W110
W153
W112
W150
W121
W120
W107
W135 W137
W154 W156
W90
W145 W147
W132
W115
W124
W104
W119
W221
W218
W219
W222
W163
W83
W91
W103
W87
W88
W85
W116
W99
W223 W224
W225
W111
W149
W220
W79 W78
W77
W136
W143
W606
W619
W622
W621
W620
W617
W610
W601
W9
AM RF
MPX.FIL.
PLL
VT
FM IF
FM DET MPX
SRch
SLch SELECTOR
SWch
SELECTOR
R633
R634
W608
W101
W250
W98
W247
W102
L604
R637
L609
L602
W616
VR601
CF601
CF602
C610
W613
W623
C649
C646
C672
C632
C614
C615
W624
R644
L603
W602
W611
C619
W615
L601
8
1
R650
C673
C607
R681
C627
C617
C616
C621
C629
C628
C638
C637 C623
L606
L607
L610
C648
R641
L605
R602
R640
X601
W100
R677
C688
W248
W117
W249
W251
W4
R694
L611
R621
R622
Rch
85
4
1
4
1
85
85
4
1
85
14
5
8
14
16 9
8
1
18
9
16
5
8
5
8
1414
Rch
Rch
Lch
14
14110
1120
5
5
88
Lch
18
18
15
1
1
8
19
115 118
8
9
16 1
8
1
5
4
15
1
15 1
30
16 12
115
22
12
11 1
9
1
1
4
58
1
16
9
8
14
5
8
SELECTOR
R290
E B
4
R292
B E
W128
R298
R300
R299
R297
15 11
1
W246
R291
W243
W244
W245
8
1
W242
W236
W239
W237
W238
W240
W241
8
4
4
C221
5C222
C224
5
W174
W198
W194
W202
W201
W200
W146
C285
1
5
W229
4
W139
W140
W160
W138
W173
W141
W178
1
W233
W235
W234
W182
15
C286
1
W165
W179
W175
W180
W181 W184
W167
W151
W168
P2
W127
31
C402
C401
W170
W158
SELECTOR
W183
W171
W166
W199
W172
W195
41
W159
20
W196
C223
W193
W169
W197
W204
1
Lch
IC27
IC3
IC44
IC43
IC28
IC25
IC23
E1
IC21
IC22
IC24
IC31
IC47
IC30
IC53
IC29
IC26
IC48
IC52
IC51
D14
WH2
WH1
J2 J6
J1
CN1
CN5
CN3
IC49
CN4
CN7
E2
D612
WH601
CN11
D616
A601
IC601
D604
D603
D609
D605
IC602
CN12
J601
E23
E24
VOLUME
Cch
VOLUME
VOLUME
TUNER
TONE Lch
Rch
E601
VOLUME
ROOMB
E11
IC19
D35
Q41
Q42
E6
WH5
D24 D23
E9 WH7
IC20
J7
D22
D21
WH4
E5
E3 WH1
WH5
E7
J21
S1
E8
WH6
CN10
CN2
J3 J4
PHONES
VOLUME
ANTENNA
PRE OUT
/CD2
TAPE2
MD
TAPE1
X11 G/7
X11 D/7
X11 C/7
X11 F/7
SW
CENTER
SURROUND
PLAY
IN
VIDEO4
PLAY
VIDEO3
IN
REC
VIDEO2
OUT
VIDEO2
PLAY
IN
IN
VIDEO1
PLAY
OUT
REC
VIDEO1
X11 B/7
PLAY
CD1
PLAY
REC
REC
PLAY
R
L
SL
SR
SW
CENTER
X11-3822-70 A/7 (J70-1251-11)
PRE OUT
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD(Component side view)
19 20

Q16
Q15
Q1
Q2
Q31
Q30
IC1
Q362
Q361
Q312
Q406
Q4
D91
D90
Q903
Q3
D56
D55
Q32
IC61
D96
IC23
D1
Q5
Q6
D2
Q311
D6
D996
Q454
Q460
D76
Q459
D40
D7
D45 Q453
D44
Q457
D3
Q456
Q461
Q462
Q455
D51
D58 D53 D59 D52 D74 D54
D60 D50
D75
D39
D92
D93
D94
D95
Q901
D901
D902
Q902
Q54
Q53
IC52
Q17
Q55
Q52 Q14
Q13
Q11
Q12
D999
Q51
C372
C370
C354
C358
C356
C362 C376
R356 R354
R352
C707
C706
C602
C604
C608
C702
C703 C701
C109
C137
C117
C605
C607
C606
C138 C16C15
C455
C14
C13 C12
C2
C812
R362
R368
C813
C814
R380
C227
R366
C1
R364
C815
C206 C205
C11
R710
R708
R711 R701
R702
R706 R707 R705
R139R138
R128 R126
R159
R114
R113
R225
R226
R214
R215
R213
R211
R216
R158
R204
R203
R209
R210
C108 C107
R208
R207
R111
C371
C601
C369
C609
C612
C353
R112
C106
C357
C105 R141
R140
R107
R108
C104 C103
R105
R104
C111
R117
R116
R120
C102
R142
R102
R631
C355
C361 C375
R355 R353
R351
R361
R367
R379
R365
R363
C411
C410
C402
C404
C403
C406 C413
R403
R402
R401
C322
C320
C304
C308
C306
C312 C326
R306 R304
R302
R312
R318
R330
R316
R314
C319
C303
C307
C305
C311
R305
R307
R315
R313
C121
R630
R628
R629
R621
R622
R620
R618
R619
R627
R623
R611
R612
R610
R617
R615
R613
R614
R601
R606
R607
R406
R409
R415
R408
R407
R414
R220
R378
R218
R219
C610
R217
R310R359
C212 C211
C201
C202
R377
R19 R20
R9 R10
R15 R16
C21
C22
R913
R914
R915
R205
R124
R206
C705
R1
R109
R115
R129
R916
C153
R119
C154
R143
R360
R212
R703
R405
R221
R328
R308
R357
R327
C24C23
C633
R602
C629
C630
C631
C632
C621
C208
C704
C622
R665
R664 R663
R662
R657
R654
R659
R658
C207
R650
R603
C624
R649
R648
R647
R646
R645
R644
R643
R642
R641
R227
R633
R632
R223
R634
C628
C627
R103
C626
C625
C620
C619
C623
C708
L2
L1
C614
C613
C615
C617
C618
C829
R358R404
R666
R661 R660
R656
R655
R653
R652
R651
R636
R635
R637
R638 R639
R640
R123
C152
R416
R709
R222
R2
R5 R6R3 R4
R7 R8
C550
C551C552C553C554
W313
W317
W316
W315
R301
R311
W254
R468
R467 R478
R496
C412
C824
R491
R489
R457
C461
R497
R474
R458
R459
R460
R461
R481 R479
R470
R996
R476
C325
R303
R329
R317
C321
W312
R997
R488
R490
R464 R483 R465 R484 R466 R485 R469 R487 R463 R486
C515 R523
C516
R524
C517
R525
R522 R521 R520
C820
C826
C910
C911C912C913
R504
C514
C510
R926
R912
R928
R905
R906
R929
C907
R502
R529
C908
R904 R903 C906 C903
C901
R923
C518
C519
R527
R526
C149
R172
C149
R130
C501
R160
R161
R163
R174
R165
C530
R918
R919
C526
R920
C529 R917
C528
R901
R902
C904
R921
R922
R924 R925
C524
C525
R501
C506 R192 R181
C145R182
C527
R503
R528
C147
R173
R511
R162 C136
R510
R509
C128
C146
W314
R517C509
R513
C508
R122 C150
R518 R519
R514R515
R516 C504
R125
R132
R183
R131 R136 R184
R135
C129
R101
R118
C611
R154 R155
R156
C130
R150 R151
R146 R147
R148
C133
C139
R153
C142
C131
R145
C132
R149
C134
R157
C151
C110
C112
R110
C801
C802
C822
R825
C808
R809
R824
R812
R808
C807
R811
C819
C806R822
R810
C805 R823
58
41
15 28
14 1
R309
R202
R201
R475
50 51 80 81
10031 130
C113
R133
C114
R121
C101
85
4
1
R927
EB
BE
BE EB
BE
BE
EB
EB
EB
EB EB
EB EB
EB
BE
EB EB
EB
EB EB
EB EB
EB EB
BE BE
BE EB
BE
BE
EB
EB
BE
EB
EB
BE BE BE
THX/Re-EQ
IC11
IC12
IC51
D86
D57
Q354
IC13
Q352
Q358
Q360
Q356
IC83
D43
Q353
Q351
Q357
Q359
Q355
J6J5 J4
IC53
D82
J8
Q86
CN86
CN83
CN85
D81
CN84
IC21
CN88 CN87
CN82
Q452
CN81
Q402
Q401
Q404
Q405
Q403
Q304
Q302
Q308
Q310
Q306
Q303
Q301
Q307
Q309
Q305
Q81
Q451
IC81
Q82
PEAK LEVEL
DISP. MODE
INPUT SEL.
V-B SELECTOR
V-A
C SELECTOR
Y SELECTOR
SELECTOR
VIDEO
AMP.
WH2
A-CLASS AVR
+17V -17V
VIDEO AVR
WH1
WH1
SR-ch
L-ch
VIDEO AVR
PHONO EQ
A-CLASS
AVR
AUDIO
SL-ch
WH6
R-ch C-ch
WH5
AVR
WH8
WH3
WH8
WH3
DOLBY DIGITAL
MPEG
/DTS
MUTE
WH7
WH7
IC84
J11
CN32
CN22
CN29
S5
S2
E2
S3
S4
S7
D36
D38
CN21
CN25
IC91
D66
CN51
Q466
CN11
IC82
Q83 Q84
D46 D47
Q470
CN24
D67
D76
D4
D71
D80
D998
D35
D37
IC90
D32
D34
D83
D85
D84
D48
D49
D31
D33
CN28
D68
D87
CN26
CN27
D63
Q465
D73
D61
D62
D64
D70
D65
CN33 D69
D89
D41
D42
ED1
D79
D5
Q463
Q458 Q464
Q467
Q468
Q469
D77
P2
D997
PLAY
J7 J9
X25 D/7
J1
Q85
X25 F/7
J2
A1
S7
SP-A
SP-A
SP-B
ST-BY
X25 G/7
X25 C/7
X25 B/7
DSP
D88
Q999
F2 T1.6V L 250V
F1 T1.25V L 250V
F1 T1.25V L 250V
F3 T1.6V L 250V
CN23
(J70-1292-11)
X25-6202-70 A/7
X25 E/7
P1
J3
WH4
VIDEO4
IN
OUT
MONITOR
S-VIDEO
VIDEO3 VIDEO2
PLAY
IN
OUT
REC
PLAY
IN
VIDEO1
REC
OUT
PLAY
IN
VIDEO4
MONITOR OUT
IN
OUT
VIDEO3
PLAY
IN
PLAY
IN
REC
VIDEO2
PLAY
REC
OUT
VIDEO1
PLAY
IN
A
B
PHONO
R
S-VIDEO
L
RVIDEO L
R480
R372
R370
C817
C816
R374
C458
C352
C360
C823
C460
C503
C141
C368
C454
C140
C120
C18
C9
C17
C10
C203
C3
C209
C204
C122
C217
C218
C214
C210
C4
C213
C804
C825
C803
R411
E5
C8C7
C502
C135
E7
C5 C6
C511
R371
R369
R373
C351
C359
C367
K1
R410
R11
C118
C116
C124
C126
C522
C523
C818
R12
R412
C401
C405
C409
C811 C809
C810
R13 R14
R322
R320
R324
C302
C310
C318
R321
R319
R323
C301
C309
C317
R462
R803
R801
R802
R804
R626
R625
R624
E6
W210
W124
W70
W116
W138
W68
W118
W122
W73
W149
W137
W139 W161
W198
W199
W244
W250
W245
W248
W249
W162 W176
W209
W177
W114
W53
W48
W47
W104
W267
W88
W64
W144
W266
W99
W273
W169
W21
W43
W25
W27
W29
W271
W160
W69
W75
W71
W194
W121
W123
W34
W143
W72
W175
W166
W134
W182
W30
W36
W35
W38
W110
W51
W10
W185
W200
W195
W191
W188
W131
W76
W82
W24
W26
W233
W232
W231
W230
W227
W226
W225
W224
W223
W220
W219
W218
W217
W216
W189
W59
W234
W235
W237
W238
W213
W44
W229
W228
W236
W221
W222
W241
W214
W215
W239
W206
W207 W243
W130
W74
W120
W274
W61
W163
W8
W168
W7
W251
W65
W252
W269
W183
W119
W11
W17
W16
W97
W12
W13
W52
W57
W50
W55
W39
W277
W278
W14
W63
W172
W173
W40
W140
W56
W181
W174
W193
W184
W208
W280
W270
W272
W211
W96
W95
W150
W42
W41
W152
W165 W180
W179
W142
W148
W94
W54
W32
W93
W46
W167
W60
W45
W49
W240
W100
W102
W103
W126
W127 W132 W135
W92
W136
W141
W107
W111
W83
W23
W9
W28
W90
W109
W112
W33
W106
W101
W87
W18
W66
W108
W154
W153
W242
W187
W86
W147
W84
W85
W155
W156
W186
W170
W171
W79
W283
W285
W2
W1
SP-B
3G
F1
1G
+5V
+5V
+5V
+5V
+5V
GND
GND
+5V
+5V
12G
11G
10G
13G 14G 15G
16G
P16
P15
P14 P13
P12
P11
P10
P17
+5.6V
P18 P19
P34
P35
P33
P20
P21
P32
P31
P22
P23
P30
P29 P24
P25
P28
P27
P26
GND
+8V
GND
Rch
Lch
STLB
+17V
+B
+B
+17V
+17V
GND
Lch
Lch
Rch
+17V
GND
GND VGND
+5V
DATA
CLK
E20
RELAY
GND
GND
E1
V4 INMONI V3 IN V1 INV1 OUTV2 INV2 OUT
C616
W4
C457
C453
R376
C507
W279
C119
C127
C828
R413
W268
W15
W253
W5
W310
C512 C521
R472
R609
C366
R144
C364
W295
W297
R375
C520
W302
W275
W31
C125
W62
C634
R106
C115
C123
C143
W67
W78
R17
R18
C19
R512
C20
R608
W289
W298
R152
C505
W303
C905
W259
R127 R224
R499
C451
R498
R477
W197
W192R805
W286
W307
W255
R813
C365
C363
R326
C316
C314
R325
R998
R473
R471
C452
R495
R482
W281
W287
R806
W247
C315
W128
C313
C144
R704
R616
W262
W201
R828
W159
W125
62
W113
W257
E18
W164
W264
W256
W276
W146
W115
W151
W133
W203 W157
W190
W196
W158
W204
W205
W77
W81
C909
C463
W80
W98
W105
W58
W20
W22
W91
C831
R821
C827
W301
C408
C407
W89
1
W145
W265
W3
W212
W178
W263
W282
R417
C456
W300
W117
W299
W6
W261
W202
W246
R999
R604
W129
W19
W292
W37
W290
W293
W294
C462
W304
C603
W305
W284
W311 E9
E10 E12
E11
-17V
9
1
120
-17V
+B -B
115
14
71
814
-17V
-5V
13 1
13 1
OI G
OIG
41
-17V
F1
2G
4G 5G 6G 7G 8G
E4
E16
1
9
1
4
X1
-B
113
E17
1
4
-B
P8
P9 P6 P7
P3
P4
P5 P2
P1
9G
F2 F2
16 9
18
15
1
1
16 9
8
1
10
18
16 9
8
1
7
1
16 9
8
1
18 10
9
1
1
11
1
7
1
15
15 1
O
GI
C821
EB
EB
E
E
B
B
19
1
9
B
E
EB
1
8
54
BEBE
EB
9
BE
1
181
1
13
29 1
14
1
9
B
E
B
B
B
B
B
B
B
E
E
E
EE
E
EBE
BE
BE
EB
EB
EB
EB
BE
BE
EB
B
E
BE
EB
B
E
BE
EB
EB
B
EB EBEBEBEBEBE
BE
AE AF AH AJ AL ANAG AI AK AM
2
1
3
5
7
4
6
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD(Component side view)
21 22

GIFH KJMLONACEBD
2
1
3
5
7
4
6
C
IC602
IC601
KRF-V7771D(E,T) (1/6)
TUNER UNIT
(X11-3822-70) (C/7)
IC44
A
B
A601 (W02-2584-05)
(E,T,X) TYPE
KRF-V7771DE(E2) (1/6)
270
R644
R601 100
0.01
C603
10
R607
820
R604 680
CF601 CF602
1/4W
4P
C675
R641 100K
L601 10K
R642
0.01
C636
1uH
L602
S-METER
DRIVE
TUNING
FM AM/FM
S-CURVE
1
2
FM IF
S-METER
FM
DET
IF-BUFF
3
4
GND
5
AM
OSC
BUFF
ALC
30
29
SD
COMP AM
AM IF
RF.AMP
AM
MIX
REG
28
AM
AGC
27 26
VCC
8 6 7
DRIVE
STEREO
9
12 10
11
13 15
14
MUTE
DET
25
24
23 22
38K304KHz
VCO FF 2
19K
FF
DECODER
ANTI-BIRDIE
P-DET
21
SW
STEREO
20
19
PILOT
DET
FF
19K 8
18 17 16
47P
0.047
C620
33u10
C619
+
0.047
C622
3.3u35
C621
+R625
0.022
C626C624
10u16
C623
+
10u25
C627
C625
VR601
10K
2.2u35
C629
+
2.2u35
C628
+
0.022
10u10
C638
+
10u10
C637
+
0.047
C612 22
R616
10u16
C614
+
3.9K
C645
+
C615
1u50
R620
3K
R618
0.47u50
C616
+
R619
C617
1u50
+
8.2K
1
C681
L603
0.047
C611
47u16
C610
+
R683 1K
47P
C676
C641
47P
10uH
L609
C640 2P
21
C B I/F
DIVIDER
REFERENCE
3 2
1
4
5
2
22 14
SWALLOW COUNTER
1/16,1/17 4bits
ON
DETECTOR RESET
DATA SHIFT REGISTER LATCH
6 7 8
10
9
11
POWER
CHARGE PUMP
PHASE DETECTOR
UNLOCK
20 19 18 17 16
UNIVERSAL COUNTER
12bits PROGRAMABLE
DIVIDER
1/2
15 13 12
7.2MHz
X601
27P
C642
22P
C643
1.2K
R659
R658
12K
R649 10K
R648 1K
R647 3.3K
R646 3.3K
R645 3.3K470P
C644
47u16
C648
+
10u16
C646
+
1000P
4.7u50
+
C678
1K1K
R654
R651
5.6K
100
R652
R650 470
C647
1/4W
1K
R656
100P
C652 1K
R657
470P
C651
100P
C650
10K
R655
R643
220
2
1
4
3
E601
C601
0.022
C618
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
SD
STEREO
Rch
GND
Lch
+16V
-16V
T. MUTE
PLLDATA
PLLCLK
PLLCE
PLLDO
C672 1u50
+
47u16
C673
+
R605 3.3K
220
0.01
C605 R611
C606
0.01
330
R609 680
R610
C607 47u16
+
150
R681
1W
820
8.2K
R675
4.7K
1.8K
R676
R678
R677
47K
R674
6
3
5
4
3
5
4
6
1K
1K
R672R673
22
R608
100
R623
R634
R628 R627
R633
R606
21
T.METER VREF
3.3K
R638
1K
10u16
C632
+
R680 100K
R640
1K
R635
100
100
R636
10K
R639
+16V
16V
+16V
8200P
C671
8200P
C670
L606
L607
C682 0.01
33K
R615 R682
2.7K
L604 (GRN) L605 (WHT)
R603
3.3K
R602
220
0.022
DET
S-LEVEL
9
8
7
6
5
4
3
2
1
B-Rch IN
GND
B-Lch IN
GND
B-Rch OUT
GND
B-Lch OUT
GND
B-MUTE
8 7 6 5 4 3 2 1
9
10
11
12 13
14
15 16
LADDER RESISTOR
ANALOG SW
ANALOG SW
CODE DETECT
VSS
GND
VDD
20bit SHIFT REGISTER CIRCUIT
LEVEL SHIFT
CK
STB DATA
COMCOM
470K
R345
5600P
C305 3.9K
R305
C301
0.068
C303
0.015
R301
680K
ANALOG SW
ANALOG SW
CIRCUIT
R311
1K
820P
C309
22K
R309
820
R307
0.018
C307
R313
390K
16K
R303
3.9K
R315
+
10u50
C341
LADDER RESISTOR
LADDER RESISTORLADDER RESISTOR
13bit LATCH CIRCUIT
13bit LATCH CIRCUIT
1K
R312 10u50
+
C342
820P C310
R310
22K
R304
16K
820
R308
3.9K
R306
3.9K
R316
C308
0.018
C306
5600P
R314
390K
R302
680K
0.015
C304 0.068 C302
76
85 R325 8.2K
+
1u50
C321
2.2K
R323
560P
C319
120K
R321
1u50
C317
+
43K
R319
C315
27P
R317
180K
C322
1u50
+
R326
8.2K
1
4
2
3
R318
180K
27P
C316
+
1u50
C318 560P
R322
120K
C320
R324
2.2K
R320
43K
C314
0.01
+17V
+17V
+17V17V
17V
17V
+17V
1
3
2
3
1
470P
C686
1M
R687
C684
0.022
R686
1M
C602 0.01
R688 56K
R685 1M
0.022
C685
100P
C340 470K
R343
470K
R344
W688
150P
C688
6.8K 6.8K
C631
180P
220P 18K
15K
R614
R694
10
10
R693
C649R653
R637 3.9K
3.9K 3.9K
R691 3.3K
R692 3.3K
+B
IF-OUT
VT
VCC
OSC
5P0-100C4C2C1
4GND
3 GND
27P
C3
ANT1
2 GND
1
L1
27P 15P
100K 100K
3-7P
C5
C14
0.1
R3
R1
L2
0-5P C6
10P
C7 5-10P
L4
L3
150K-
R19
100
220
R16
R14
L7
C17
2-6P
47P C16 R12
3.9K
C19
8P
C21
470-
R17
10K
R15
1.5K
10P
560KC22
27P
C20
10K
R18
1-3P
100P
C23
R8
680K-1.5M
C10
1000P
C8 0-6P
R5
100
R7 33K R6 33K
680
L5
R9
L6
C15
0.1
R11
0-100
C12 2P
C11
27P
0.1
C13
R2
33K
R4 C9 IFT
8
6
7
5
100
R612
+17V +17V
17V
DGND5
VOLUME. TONE-DATA
VOLUME. TONE-CLK
1
2
TONE-STB
VOLUME-STB
3
4
B-MUTE6
TONE OUT Lch
-17V
+17V
7
8
9
10
11
12
13
14
15
TONE IN Lch
GND
TONE IN Rch
GND
TONE OUT Rch
GND
2
+17V
17V
+17V
17V
B
+B
E23
E24
R690
680
22P
C630
0.022
C690 1000P
22P
C691 22P
C692
R621
1K
1K
R622
L610 2.2uH
L611 2.2uH
R617
+B
+15V
+B
+B
+B
+B +B
+B
+B
+B
+B
+B
+B
+15V
+15V
+15V
+15V
+B
3.6V
(3.6V)
8.0V
(8.0V)
(3.6V)
3.6V
(3.6V)
3.6V
(0V)
0V
(4.9)
0V
(8.0V)
8.0V
(1.2V)
1.2V
(2.8V)
0V
(0.5V)
0.5V
(6.9V)
6.9V
(8.0V)
8.0V
(0V)
4.3V
(3.6V)
6.9V
(2.0V)
2.1V
(3.6V)
3.6V
(1.2V)
0V
(1.4V)
0V
(0.4V)
3.5V
(3.3V)
3.3V
4.3V
(4.3V)
(4.3V)
4.3V
4.3V
(4.3V)
(3.3V)
3.3V
(2.9V)
2.9V
3.6V
(3.6V)
(3.6V)
3.6V
(3.6V)
3.6V
(2.5V)
(3.0V)
(1.0V)
(5.2V)
(0V)
(0V)
(3.0V)
(2.6V)
0V (0V)
0V (0V)
0V (0V)
(4.3V)
(0.1V)
(6.9V)
1.7V
10.7V
0V
(0V)
(0V)
(1.0V)
16.3V
16.3V
-16.5V
4.3V
2.6V
6.9V
6.7V
0V (11.6V)
10.1V (10.3V)
0V
0V
(2.5V)
0V
5.2V
2.5V
1.0V
0V
1.0V
4.1V
2.5V
6.3V
1.1V
6.9V
1.6V
4.3V
8.0V
3.7V
2.9V
3.5V 15.0V
[0V]
[0V] [0V]
[0.7]
[0.7]
[3.5V]
[3.5V]
[2.7V]
0V
-2.4V
0V 0V -2.4V
-2.4V 3.7V
[0V]
0V
5.0V
11.5V
FM:11.3V
15.9V
15.0V
AM:0V
-16.5V
:-16.5V
POWER ON
STANDBY :0V
:16.3V
STAND BY :0V
POWER ON
-E1
X08-C/7
3/6
-E2
X11-A/7
4/6
-CN29
X25-A/7
5/6
J601
Q601
D601
TUNED
FM
PLL
D604
FM +B
Q614
FM, MPX
AM SYSTEM
MUTE
CN11
Q602
FM AMP
D603
D609
Q610
Q611
Q612
DRIVE
T. MUTE
D605
IC43 :
IC44 : TC9184AP
NJM4565D
Q601,606,607 : 2SC4081(R,S) or
Q602,612,614 : 2SA1576A(R,S) or
Q610,611 : 2SD1757K
D601 : DA204K
D603 : RD8.2ES(B2) or
D611,613 : MA111
D612 : 1SS133 or
RD5.1ES(B2) orD604 :
RD3.3ES(B2) orD609 :
RD2.7ES(B2) orD605 :
D613
AM RF
CN12
Q606
Q607
D612
FM DET MPX
MPX FILTER
D611
2SC4116(Y,GR) or
2SA1586(Y,GR)
HZS8.2N(B2)
HZS5.1N(B2)
HZS2.7N(B2)
HZS3.3N(B2)
CN5
CN7
TONE
D6
IC43
BUFFER
IC43
Lch
Rch
FM 75
GND
AM
(1/2)
(2/2)
HSS104
ADJ
D615
WH601
U1BC44D615 :
: 2SK302
: 2SC2413
: SVC220 or
: 2SC2714
KV1440
D1-4
FET1
TR1
TR2,3
D1
FET1
D4
BUFFER
OSC
TR2 TR3
OSC
D3 D2
RF AMP
FM FRONT END
DISTORTION(ST)
TR1
MIX
GND LINE
SIGNAL LINE
B LINE
B LINE
2SA1611(M5,M6)
2SC4177(L5,L6)
IC602
IC601 LC72131: : LA1837
D6 : DA204U or
1SS302
Y05-3862-70
KRF-V7771D/V7771DE
The DC voltage is an actual reading
measured with a high impedance
type voltmeter as the AM/FM signal
generator is specified to the condi-
tions as shown in the list below. The
measurement value may vary
depending on the measuring instru-
ments used or on the product. The
value shown in ( ) is actual reading
measured in the AM mode.
MODE CARRIER MODULATION ANT INPUT
FREQUENCY DEVIATION
FM 98MHz 1kHz STEREO 67.5kHz 7.5kHz(Pilot) 60dB
AM 1000(999)kHz 400Hz MONO 30% MOD 60dB
CAUTION: For continued safety,
replace safety critical components only
with manufacturer's recommended
parts (refer to parts list). indicates
safety critical components. For contin-
ued protection against risk of fire,
replace only with same type and rating
fuse(s). To reduce the risk of electric
shock, leakage-current or resistance
measurements shall be carried out
(exposed parts are acceptably insulat-
ed from the supply circuit) before the
appliance is returned to the customer.

AA AB AC ADP QSUWRTVXYZ
2
1
3
5
7
4
6
R926
W194
W1880.22u50 1
C132
C101 100P
100P
10K
R132 10K R131 10K
C143
330u1675
R102
+
R136
220
R135
220
R133 180K
C113 100P
R119
75
75
100P
C154
0.1
0.22u50 1
0.022
C129
75
R101
+
C126 R122
R120
C125 10.022
+
C137
22P
W226
15 17
1
14
16
7
C150
R128
R127
360
20K
2
1
6
4
5 3
100P 8
10
MONI OUT GND CTL E GND IN4 IN5
CYLA 15
16
IN1
CTL B 11
VCC
IN2
13 12
VOUT1 14
CTL D IN3
CTL C 9
VOUT2
R149
22P
10K
220
R151
220
R150 3
2
C525 0.01
C523 10u50
+
4
1
7
6
C524 0.01
+
C522 10u50
5P
C506
560
5
10K
R501 8
DATA
CLK CLR
VDD
100
9
8 7
3
1
2
1P5
P6
6 5
4
9
7 8
GND P7 P8 P9 P12 P10 P11
16 17 18
P4 17
P1 13
14
P3 15 P2
10
STB 12
11
15
14
16
R520 1K R521 1K R522 1K
0.01
C510
12
11
10
100P
C514
100K
R528
C501
+
75
R527
C519
2.2u50
C144
R172
75
C149
+
C505
2.2u50
1K
100P 100P100P
R159R158
100P
C130
R126
R125
100
R103
R124 180K
C103 100PC111 100P
R129 180K
75
R115
75
100P
C153
0.1
C123 R116
C124 R118
0.022 1
75
100P
+
C116
0.22u50 1
R106
220
R184
360
R183
R148
100
W198
+
0.01
C142
10u50
C141
W224
W223
W225
W220
20K
C138
22P
W219
W206
220 360
C152
0.1
75
C109 47P
R139 10K
10K
47P R113 C122
75 330u16
C115
0.022 1
R104
+W189
R114
75 C121 0.022 W185
0.1
C151
C107 100P
R123 180K
75
R109
100P
75
R112
C120 10.22u50
+
R110
1
C119
0.022
CTL D CTL E IN3 IN4 IN5 GND GND MONI OUT
7 2
1
6 3 5
4
8
10
CTL B
VCC
VOUT1
CYLA 15
16
IN1
11 12 13 14
IN2
10K
CTL C
VOUT2 9
C134
22P
R157
100
R156
W200
C139
+
10u50
C140
0.01
W217
W218
W216
10u25
C502
10K
R510
R503
1K
C503 10u50
VOUT2
CTL C
CYLA
VOUT1
VCC
CTL B
C504 0.01
MONI OUT
+
2
1
IN3 CTL D GND GND IN5 IN4 CTL E
5 6
4
3 8 7
16 15
IN1
+5V
11 14 13 12
IN2
9 10
L
H
H
L
HH
HH
LL
VIDEO3
VIDEO2 H L
AV AUX H
HVIDEO4
A
VIDEO1
MONITOR OUT
L
+
C517
R525
75
C521
2.2u50
100K
R529
75 330u16
C511
+
C516
R524
+
C515
75
R523
C520
2.2u50
100P
10
11
100P 100P
IN4 IN1 CONT-C IN2 CONT-A CONT-B
11
10 R922 1K
R921 1K R918 1K
W267
R919 1K
R920 1K
3
1
2 6 5
4
VOUT IN3 GND VCC
1
10K
R902
+
C909
22u25
22K
R901
+
10
9
8 7
C905
47u25
C906
1800P
R924
10K
3
2
C903
1000P
R923
5.6K
W271
C907 470K
R927
1
R906
2.2K
100
R929
R925
100K
C901
0.01
R903
10K
7
4
8
5
610K
R905
0.1
R928
10K
15K
R904
C908
6
V-3
1K
R912
1
2V-4
WIDE
3
4
5
V-2
V-1
SYNC
6
7+5V
10 CONT-B
CONT-P
8
9
GND
CONT-A
11
GND
GND
3
2
GND1
V-GND
FRONT-Y
13
12
C507 2.2u50
+
9
FRONT-C
FRONT-V
11
10
TAPE-2
-5V
+5V7
8
9
10
12
11
7
8
DATA4
VST
CLK5
6
FAN-H/L
FAN-ON2
3
MUTE1
22K
R511
R917
1K
R516
360
220
R518 R519
220
10K
R517
C509
22P
C904 0.01
+5V
5V
+5V
+5V
+5V
5V
+5V
5V
+5V
+5V
+5V
+5V
5V
+5V
5V
+5V
5V
+5V +5V +5V +5V
+5V +5V
5V
+5V
5V
+5V
+5V
5V
5V
+5V
+5V
5V
+5V
5V
+5V
+5V
W207
560
R192
R182
10K
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
C
Y
4 GND
R181
Y
C
C
Y
Y
C
Y
C
Y
C
R504
1K
1K
220P220P
220K 220K
R44 R43
C41C42
R42
R41
1K
1K
R45
R46
220P C43
220P
C44
220K 220K
R47R48R59
C49
220P 220K
R58
220
R57
R54
R53
C50
220P 220P 220P
C47C48
220
R60
220K 220K 220K
R55
1K
R56
1K
R62
R61
220P
C51
220P
C52
1K
220K
R63
220K
R64
1K
1
2
38
+
2.2u50
R237 100
C229
100K
6
54
7
100K
C230
R238 100
+17V
C221
R236 R235
220P220P
Q52
C530 0.1 C526 0.1
10 10
11 11
12 12
13 13
14 14
15 15
44
33
22
11
5
6
7
5
6
7
4
1
6
2
8
7
3
8
7
6
4
3
2
1
0.1
C528
75
R509
C529
0.1
Q15,16
Q12,31
Q14,30
H
H
L
H
L
13 11 B 9 C 8 D 7 E1
CLT (CONTROL)
IC53 PORT P1 P3 P2 P4 P5
H
L
L
L
L
IC11,12,51
VIDEO3
VIDEO2
VIDEO4
10
VIDEO1
IC90
H
L
HH
L
L
3
L
A2B
H
CONTROL
V OUT
0.01
C146
6
220P C228
1K
R242
220P C227
1K
R241
220P C226
1K
R232
220P C225
220K
R244 220K
R243 220K
R234 220K
R233
1K
R231
R246 C234
100K
220P
R245
C233 220P
100K
+
2.2u50
C223
2
4
31
R248 100
R247 100
8
5
+17V
67
6
5
2
3
6
4
7
12
8
B
+B
5 7
12
5
7
12
C128 0.022
+
C127 0.22u50
150P
C239
150P
C238
C104
R105
C110
R138
C108
R111
C102
R142
C114
R121
C112
R117
2.2u50
C222
+
2.2u50
C224
+
+5V
+5V
+5V
+5V
+5V +5V
5V
+5V
IC11
IC53
IC12
IC51
IC90
(X25- ) (D/7)
(X25-6202-70) (B/7)
(X11-3822-70) (B/7)
ELECTRIC UNIT
(X11) (E/7)
CONTROL UNIT
2.0V 0V 0.7V 5.6V 2.0V 0V
0V
2.0V
0V
2.0V
0V
2.0V 0.8V
0.5V
0.7V
5.6V
0V
0.7V
5.6V
0.7V
5.6V
0V
0V 0.8V 5.6V 2.0V 0V 0V0V
0V
2.0V 2.0V 0.7V 2.0V 2.0V
0.4V 0.5V
1.2V
0.6V 0.8V
1.6V
0.7V
5.6V
5.6V
0V
5.0V
0.7V
5.6V
2.0V
0V 2.0V 5.6V 0.7V
0V
0.8V
2.0V
0V 0V
2.0V 2.0V
-5.6V
0V 5.6V 0V
5.6V 0V 0V 0V 0V 5.6V 5.0V 0V 0V
2.0V 2.0V
2.0V
4.9V 2.0V
0.6V
1.6V
1.6V
1.5V
4.9V1.9V
1.6V
0.3V 4.9V 0.7V
5.6V
0V
4.2V
5.0V
16.3V
5.6V
0V
4.9V
16.3V
-16.5V
-16.5V
J9
Q16
Q15
Q31
Q12
(2/2)
IC52
CONTROL
V-SEL.
MONI A
MONITOR
3
OUT
2 PLAY IN
VIDEO 4
VIDEO 3
1 PLAY IN
PLAY IN
REC OUT
PLAY IN
J5
Q30
J4
Q14
MUTE
VIDEO
COMPOSITE
VIDEO SEL.
Q53
Q55
Q54
WH8
3 PLAY IN VIDEO 2
2 REC OUT
1 PLAY IN
VIDEO 1
(VIDEO/COMPOSITE)
J11
IC91(1/2) (2/2)
IC91
D902
D901
Q901
5V
AVR
Q902
E18
CN27
CN11
Q52
D901,902 MA111
Q902 2SA1611(M5,M6)
Q54 UN5212 or DTC124EUA
Q53 UN5119 or DTA113ZUA
Q15,16 2SC4213(B)
Q12,14,30,31,52,901 2SC4081(R,S)
IC91 NJM4580L
IC90 BA7645N
IC53 NJU3713D
IC52 MC14577CF
IC11,12,51 SN761200N
VIDEO 1
VIDEO 2
IC52
(1/2)
BUFFER
BUFFER
E12E11
(PLAY IN)
(PLAY IN)
MONITOR
OUT
Rch 1
PLAY IN
VIDEO 4
Lch 2
Lch 4
Rch 3
VIDEO 3
PLAY IN
Lch 4
VIDEO 1
REC OUT
Rch 3
Lch 2
VIDEO 2
PLAY IN
Rch 1
J4
PLAY IN
VIDEO 1
Lch 6
Rch 5
IC19
IC19
BUFFER
D
E
F
(1/2)
(2/2)
(S1 VIDEO)
VIDEO 3
VIDEO 4
MACRO
PERFECT
DETECTOR AD DC BUFFER INV
REC OUT
VIDEO1
BUFFER
E10E9 WH3
V-MUTE
C
SELECTOR
SELECTOR
Y
BUFFER
BUFFER
FAN-M
CENTERch 1
Rch 3
VIDEO 4
SURROUND
SWch 2
Lch 4
6ch INPUT
J3 IC20
IC20
(2/2)
(1/2)
BUFFER
J7
IC18
IC19,20
IC4 : TC9164AF
: NJM4565D
: TC9163AF
GND LINE
SIGNAL LINE
B LINE
B LINE
:
:
:
:
::
:
:
:
:
:
WH4
CAUTION: For continued safety, replace safety critical components only with manufac-
turer's recommended parts (refer to parts list). indicates safety critical components.
For continued protection against risk of fire, replace only with same type and rating
fuse(s). To reduce the risk of electric shock, leakage-current or resistance measure-
ments shall be carried out (exposed parts are acceptably insulated from the supply cir-
cuit) before the appliance is returned to the customer.
The DC voltage is an actual reading measured with a high imped-
ance type voltmeter with no signal input. The measurement value
may vary depending on the measuring instruments used or on the
product.