Kenwood KRF-V7020D User manual

AUDIO VIDEO SURROUND RECEIVER
KRF-V7020D/V8020D
VR-307/309/357
SERVICE MANUAL © 1999-1/B51-5499-00 (K/K) 1895
Illustration is KRF-V7020D(Y).
- –
Font glass
(B10-3458-02)
Knob
(K27-2293-04)
Knob
(K29-7370-02)
Knob
(K29-7370-02)
Phone jack
(E11-0127-05) Foot (J02-1407-03)
KENWOOD badge
(B43-0302-04)
Knob
(K29-7326-04)
Knob
(K29-7323-03) Knob
(K29-7325-04)
AC power cord
(E30-2605-05)
Phono jack (6Px2)
(E63-0047-15) Phono jack
(E63-0164-05)
Miniature phone jack
(E11-0293-05) Phono jack (E63-0094-05)
Phono jack
(E63-0093-05)
Phono jack
(E63-1080-05)
Phono jack (4Px2)
(E63-0046-15)
Power cord bushing
(J42-0083-05)
AC outlet
(E03-0148-05)
Optical receiving module
(W02-1181-05)
Lock terminal board
(E70-0052-05)
Screw terminal board
(E70-0100-05)
Lock terminal board
(E70-0047-05) Metallic cabinet
(A01-3685-01)
Slide switch
(S62-0034-04) Slide switch
(S62-0001-04)

Remote Controller
Model Destinations Parts number Model name Battery Cover
KRF-V7020D
X7,C7,Y7,V7,M7 A70-1268-05 RC-R0712 A09-1123-08
KRF-V8020D X8 A70-1275-05 RC-R0508 A09-0366-08
KRF-V8020D C8,I8,Y8,M8 A70-1277-05 RC-R0608 A09-0366-08
VR-307 K6,P6 A70-1268-05 RC-R0712 A09-1123-08
VR-309 K8,P8 A70-1277-05 RC-R0608 A09-0366-08
VR-357 K7,P7 A70-1277-05 RC-R0608 A09-0366-08
Resetting theMicrocomputer
If the microcomputer may malfunction (unit cannot be operated,
or shows an erroneous display) if the power cord is unplugged
whilethepoweris ON,or dueto someother externalfactor. Ifthis
happens, execute the following procedure to reset the micro-
computer and return the unit to its normal operating condition.
Unplug the power cord from the wall outlet, then plug it
back in while holding down the POWER key.
Please note thatresetting the microcomputer will clear the contents
ofthe memory and returns the unit tothe state it wasin when it left the
factory.
With the power cord plugged in, turn the POWER key
OFF. Then, while holding down the ON/STANDBY key,
press POWER.
For U.S.A. and Canada
For other countries
•
FM
(T90-0836-05)
RC-R0508/R0608 RC-R0712
Battery cover (A09-0366-08) Battery cover (A09-1123-08)
(E03-0115-05)
indoor antenna (1) (T90-0833-05) Loop antenna stand (1) Batteries (R03/AAA)(4)
*AC plug adaptor (1)
*Use to adapt the
plug on the power
cord to the shape
of the wall outlet.
(Accessoryonly for regions where use
is necessary.)
AM loop antenna (1)
Remote control unit (1)Remote control unit (1)
KRF-V7020D/V8020D/VR-307/309/357
2
CONTENTS / ACCESSORIES / CAUTIONS
CONTENTS / ACCESSORIES / CAUTIONS...............2
DISASSEMBLY FOR REPAIR.....................................3
CONTROLS.................................................................4
BLOCK DIAGRAM.......................................................6
CIRCUIT DESCRIPTION.............................................7
ADJUSTMENT.......................................................... 14
WIRING DIAGRAM....................................................15
PC BOARD ................................................................16
SCHEMATIC DIAGRAM............................................21
EXPLODED VIEW .....................................................35
PARTS LIST...............................................................36
SPECIFICATIONS.....................................................45
Contents
Accessories
Cautions
Model name vs remote controller

KRF-V7020D/V8020D/VR-307/309/357
3
DISASSEMBLY FOR REPAIR
1. Remove the 8 screws (1,2,3),
remove the rear panel.
2. Connect the GND of the rear panel
and the chassis, the GND of the
mounting hardware and the chassis
with 2 alligators clip (4)
1
2
2
4
4
4
3
x2
x2
x2
x2

KRF-V7020D/V8020D/VR-307/309/357
4
CONTROLS
8FUNCTION SHIFT key
Useincombinationwiththenumerickeysto
executealternatecommands.
9Numeric keys
Provide functions identical to those of the
original remote control supplied with the
componentyouarecontrolling.
Toaccessthefunctions printed above the
keys,presswithin3secondsofpressingthe
FUNCTIONSHIFTkey. Functionavailability
variesforeachcomponent.
0SHIFT key
Use in combination with the AUDIO and
VIDEO keys to change the remote control
modewithoutchangingtheinputselectoror
incombination withthe POWERkey toturn
on and off components programmed into
theremote control.
!TV selector key
Sets the remote control to operate a TV or
cable box. This key does not change the
inputselectoronthereceiver.
@AUDIO selector key
Selects the audio inputs and sets the re-
mote control to operate the respective
KENWOODaudiocomponent.
If you connect audio components from
KENWOOD and other makers to the MD/
TAPE or CD jacks, you can set the remote
control to operate these components by
registering the appropriate setup code at
therespectiveinput.
#GUIDE key
Useto activatetheOSD menufunctions of
registeredcomponents.
$VOLUME key
Usetoadjustthereceivervolume.
%MUTE key
Useto temporarilymutethe sound.
^SOUND key
Use to adjust the sound quality and ambi-
enceeffects.
&LISTEN MODE key
Usetoselectthelistening mode.
*SETUP key
Useto selectthesurroundsoundsettings.
1POWER key
Usetoturnthe receiver onandoff.
Use in combination with the input selector
(AUDIO,VIDEO,orTV)keysandSHIFTkey
toturnvarious components on andoff.
2MACRO key
UseincombinationwiththeAUDIO,VIDEO,
orTVkeystoexecuteaseriesofcommands
automatically(MACROPLAY).
3VIDEO selector key
Selectsthevideoinputsandsetstheremote
control to operate the component regis-
teredattherespectiveinput.
4Multi control keys
Usetooperatetheselectedcomponent.
5REC key
Usetooperatetheselectedcomponent.
6TUNING/SKIP key
Useduringthesetupprocedure tospecify
varioussettings.Usetooperatethetuneror
selectedcomponent.
7SUBWOOFER key
Use in combination with the VOLUME +/–
keystoadjustthevolumeofthesubwoofer.
There are some cases in which keys (or
knobs) that have the same function on
the receiver and on the remote control
have different names. In the instruc-
tions of this manual, if the names of
corresponding keys (or knobs) on the
receiver and remote control are differ-
ent, the name of the remote control key
is indicated in parentheses.
AUDIO
SHIFTMACRO
TVVIDEO
GUIDEREC
MUTE
VOLUMETUNING/SKIP
THEME FAVMENU
FUNCTION
SHIFT SETUP
INFO ALT AUDTV/SAT/VID
REPEAT RANDOM+100
DISPLAY
ENT+10
LISTEN
MODE SOUNDSUBWOOFER
231
564
897
0
1
2
3
7
8
9
4
5
6
0
!
#
^
*
&
%
@
$
8
7
4¢
6
BAND
P. CALL P. CALL
POWER
Remotecontrolunit(RC-R0608 / R0508)
ASPEAKERS BBASS BOOST MONITOR SOURCE
DIRECT
INPUT MODE LISTEN MODE
SOUND SETUP
MULTI CONTROL INPUT SELECTOR
VOLUME CONTROL
DTS
DOLBY DIGITAL
VIRTUAL SURROUND
DOLBY DIGITAL
VIRTUAL SURROUND
DOWN UP
STANDBY
AV SURROUND RECEIVER
ON / STANDBY
PHONES
-ON – OFF
POWER
POWER
STANDBY
ON / STANDBY
DIMMER P.CALL P.CALL BAND AUTO MEMORY
FM
AM
kHz
MHz
3 STEREO
B
S.DIRECT
A
SP
MUTE
DOWNMIX
MONITOR
PRO LOGIC
TUNED
MEMO.
AUTO
ST.
AUTO SOUND
S
SW
C
RS
R
LS
L
LFE
DIGITAL
CLIP
283 4 6 75 9
)(%$#@!0 ^ &*
1
Display
Speaker selection indicators
Input channel indicators
Output channel indicators
AUTO SOUND indicator
Band indicators AUTO indicator
MEMO. indicator
ST. indicator
TUNED indicator
3 STEREO indicator
STEREO indicator
1POWER key
(For U.S.A. and Canada)
Use to turn the power ON/OFF.
STANDBY indicator
1ON/STANDBY ( ) key
(Except for U.S.A. and Canada)
Use to switch the power ON/STANDBY
when the POWER is turned ON.
STANDBY indicator
2POWER key
(Except for U.S.A. and Canada)
Use to turn the main power ON/OFF.
3Surroundindicators
÷DTS indicator
Lights when the receiver is in the DTS
mode.
(ForVR-309,KRF-V8020D)
÷DOLBY DIGITAL indicator
Lights when the receiver is in the Dolby
Digitalmode.
÷VIRTUAL SURROUND indicator
Lights when the receiver is in the Virtual
Surroundmode.
4DIMMER key
Usetoadjustthebrightnessofthedisplay.
Usetoselectthe REC MODE.
5P.CALL keys
Use to call up previously registered radio
stations.
6BAND key
Usetoselectthebroadcastband.
7AUTO key
Usetoselect the autotuningmode.
8MEMORY key
Use to store radio stations in the preset
memory.
9VOLUME CONTROL knob
0PHONES jack
Useforheadphonelistening.
!SPEAKERS A/B keys
Usetoturn the speakersON/OFF.
@BASS BOOST key
Use to select the maximum adjustment
settingforthelowfrequencyrange.
About the STANDBY indicator
Thisunit hasaSTANDBYindicator.WhentheSTANDBY indicatoris lit,theunitconsumesasmallamount ofpower topreserve thememory.Thisiscalled
STANDBY mode. This mode also lets you turn the power ON using the remote control.
Frequency display,
Input display,
Preset channel display,
Surround mode display
Speakerindicator
CLIPindicator
PRO LOGIC
indicator DIGITAL indicator
S.DIRECT indicator
MONITOR indicator
DOWNMIX indicator
#MONITOR key
$SOURCE DIRECT key
%INPUT MODE key
Usetoswitchbetweenthedigitalandanalog
inputs.
^LISTEN MODE key
Usetoselectthelisteningmode.
&SOUND key
Use to adjust the sound quality and amb
enceeffects.
*SETUP key
Useto selectthesurroundsoundsettings
(MULTI CONTROL knob
Usedto makeavariety ofsettings.
)INPUT SELECTOR knob
Useto selecttheinputsources.
For U.S.A.
and Canada
MUTEindicator
For VR-307, VR-357
KRF-V7020D

KRF-V7020D/V8020D/VR-307/309/357
5
CONTROLS
Remotecontrolunit(RC-R0712)
AUTO(7)key
Iftunerisselectedastheinputsource,this
keyfunctions astheAUTOkey.
IfCDorMDisselectedastheinputsource,
thiskeyfunctions as the stopkey.
TUNING (1 ¡) keys
Iftunerisselectedastheinputsource,these
keysfunctionastuningkeys.
IfCDorMDisselectedastheinputsource,
thesekeysfunctionassearchkeys.
P.CALL (4 ¢) keys
Iftunerisselectedastheinputsource,these
keysfunctionasP.CALLkeys.
IfCDorMDisselectedastheinputsource,
thesekeysfunctionasskipkeys.
3LISTEN MODE key
Usetoselectthelistening mode.
4MUTE key
Useto temporarilymutethe sound.
5SOUND key
Use to adjust the sound quality and ambi-
enceeffects.
6MULTI CONTROL key
Usedto makeavariety ofsettings.
1Numeric keys
IfCDorMDisselectedastheinputsource,
thesekeysfunctionasnumerickeys.Iftuner
isselected astheinputsource,thesekeys
areused tocall upstationpresets.
2Component operation keys
Use these keys to operate other compo-
nents with system control connections to
thereceiver.
2key
Iftapeis selected astheinput source, this
keyfunctionsastheplaykeyforsideBofthe
cassette(thesidefacingawayfromthefront
ofthedeck).
BAND (6) key
Iftunerisselectedasthe inputsource,this
keyfunctionsastheband selectorkey.
IfCDisselectedastheinputsource,thiskey
functionsastheplay/pausekey.
IfMDisselectedastheinputsource,thiskey
functionsastheplaykey.
DISC SKIP, A/B, +100 key
IfCDisselectedastheinputsource,thiskey
functionsasthemulti-CDplayerdiscskipkey.
IfTAPEisselectedastheinputsource,this
(AandB)ofa doublecassettedeck.
REMOTE CONTROL UNIT
RC-R0712
POWER
123
0456
+107
LISTEN
MODE S.DIRECT
DISC SKIP
A/B +100AUTOBAND
TITLE
SUB TITLE
MD/TAPE TUNER CD PHONO
DVD CONT VIDEO 1 VIDEO 2 VIDEO 3
OSD
SET UP
MONITOR
SOUND
MENU
ENTER
MUTE
MULTI CONTROL
VOL.UP
267
1TUNING ¡

4P.CALL ¢

89
VOL.DOWN
1
2
3
4
5
6
7
#
9
0
!
@
8
7DVD CONT key
UsedtooperateDVDplayer.
Whileholdingthiskeydepressed,pressanyof
thekeysmaskedingrayintheaboveillustration
to operate the corresponding function of a
DVDplayerfromKENWOOD.
Keys 3, 4, 5, 9and !are given the
following functions during the DVD player
controloperation.
3:TITLE
4:ENTER
5:SUB TITLE
9:MENU
!:OSD
For details, refer to the instruction manual of
yourDVDplayer.
8POWER key
UsetoswitchthepowerON/STANDBY when
the POWER is turned ON.
9SOURCE DIRECT key
0VOLUME CONTROL key
!SETUP key
Useto selectthesurroundsoundsettings.
@MONITOR key
#Input selector keys
Usetoselectthereceiver'sinputsource.

KRF-V7020D/V8020D/VR-307/309/357
6
BLOCK DIAGRAM
LINE BUF
PHONO EQ
X05
IC16
NJM2279M
CS4226
LPFLPF LPF LPF
x2x2 x2 x1
M62446SP
6ch E. VOL
with 2ch
TONE CONT.
x0.5
BUF
STK411-230
STK410-030
+20/0dB
+B HITAP
-B HITAP +B LOWTAP -B LOWTAP
CD
COXIAL
OPTICAL
VIDEO2
IN
DIGITAL
VIDEO3
VIDEO2
VIDEO1
CD
PHONO
TAPE
/MD
MONIPLAY
MONI
/MD
TAPE
VIDEO1
VIDEO3
VIDEO2
VIDEO1
VIDEO1
MONITOR
S-VIDEO IN
REC
OUT
Lch
H, P, Rch
H, P, Lch
Rch
Cch
Lch
Rch
LSch
RSch
SWch PRE OUT
SP-B
SP-A
AC IN
+5V
A.V.R
for
u-COM
+15V
A.V.R
A.V.R
-15V
+5V
+7V
-7V
A.V.R
5V
for E. VOL
for
u-COM
for FILAC
(AUDIO and VISUAL)
TUNER etc.
for AMP (HI TAP)
for AMP (LOW TAP)
for RELAY SW
TC9163
TC9164
A1
J1
IC6(1/3)
IC7(3/3)
IC7(1/3)
IC7(2/3)
IC6
IC8
IC6(2/3)
VIDEO (Y)SEL
(NOT for K,P TYPE)
Q1
SWITCHED
S1
D1,4
D2
D5
IC1
IC2
-30V
IC13
Q2
IC1IC2
IC8
(2/2) IC8 (1/2) IC9
IC7 IC5
IC11
Q3
Q4
Q7
Q5
Q6
Q8
Q9
Q10
Q13
Q11
Q12
IC4
IC3
2.0V/2.2KSWch
PRE OUTPUT
CXP82852-139Q
u-COM
INPUT SEL.
TUNER
TC9162
D1-4
(1/2)
(2/2)
(1/2)
(1/2)
(2/2)
(2/2)
IC10
IC10
IC12
IC11
IC11
IC12
SP. OUTPUT
5CH. SP. 28.3V/8
COXIAL
VIDEO3
SUB
S5 S2
DIG
S4
L,R
MIX
IC10
S3
LS,RS
S7
NOSUB
ANA
S1
REC OUT BUF
IC9
S1
S2
S3
S4
S4
S5
S6
S7
S8
S1
S2
S3
IC6(3/3)
ANALOG REC
S7
DIGITAL REC
S8
Q43
Q44
D3
A.V.R
for
for DSP A.V.R
3.3V
IC14
6dB ATT MUTE
SYNC
AC3 DECODER
SUB DSP
B
A
A
B
YSS902
YSS902 SDIBSEL=0
SDIBSEL=1
(VISUAL IN/OUT)
S5
S6
DSP
IC1
Lch
Rch
Cch
LSch
RSch
SWch
NJM2279M
IC17
VIDEO (C)SEL AD/DA etc. for DSP
-5V
A.V.R
IC19
A.V.R
IC18
5V
IC12
for DIR. A.V.R
5V
NJM2279M
VIDEO SEL
IC4
MONITOR
VIDEO 1
VIDEO 1
VIDEO 2
VIDEO 3
VIDEO OUT
VIDEO IN
200mV/2.2K
200mV/47K
OUT
IN
2.5mV/27K
(AUDIO IN/OUT)
PHONO
OTHER
KRF-V8020D,VR-209
USED
K1
S-VIDEO OUT
1Vp-p/75
0.286Vp-p/75C
Y
S-VIDEO IN/OUT
(VISUAL IN/OUT)
1Vp-p/75
VIDEO IN/OUT
IC51
LFE
DA
AD
2
2BYPASS
SW
C
LS,RS
L, R
L, R
L
R
C
LS
RS
SW
DIR
C LS/RS L/R
+
+
+
+
+
+
+
4700uF
4700uF
3300uF
470uF
2200uF
3300uF
2200uF +
2
LR
LS,RS
C,LFE
L,R C,SUB C,SUB L,R LS,RS
C
Y
Y
C
Y
C
Y
C
Y
C
KRF-V7020D/V8020D
(X00)
(X08)
(X09)
(X08)
VR-307/309/357

KRF-V7020D/V8020D/VR-307/309/357
7
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 : POWER OFF
• VOLUME LEVEL : -66dB
• AUDIO INPUT SELECTOR : TUNER
• VIDEO INPUT SELECTOR : VIDEO 1
• SPEAKER A : ON
• SPEAKER B : OFF
• BASS : 0dB
• TREBLE : 0dB
• INPUT LEVEL : 0dB
• SOURCE DIRECT : OFF
• MONITOR : OFF
• DIMMER : DIMMER 1 (LIGHTEST)
• LISTEN MODE : STEREO
• VIRTUAL SURROUND : OFF
• INPUT MODE : DIGITAL AUTO
• SUB WOOFER : YES(ON)
• FRONT SP. SIZE : NORMAL
• CENTER SP. SIZE : NORMAL
• SURROUND SP. SIZE : NORMAL
• DISTANCE : Fch 10ft/3m
: Cch 10ft/3m
: Sch 10ft/3m
• FRONT (L,R) LEVEL : 0dB
• CENTER LEVEL : 0dB
• REAR (LS,RS) LEVEL : 0dB
• SUB WOOER LEVEL : 0dB
• MIDNIGHT : OFF
• BAND : FM
• FM FREQUENCY : 87.50MHz
• AM FREQUENCY : 531kHz(CH.SPACE 9kHz)
: 530kHz(CH.SPACE 10kHz)
• PRESET CH. : [ --ch ]
• PRESET MEMORY FREQUENCY
: PRESET MEMORY
FREQUENCY
• TUNING MODE : AUTO
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. When a set is set up in test mode
condition a set becomes the following condition. Auto-
matic POWER ON. All indicator tube (FL) and CLIP INDI-
CATOR LED are lighted. The other LED are flashed.
A backup at the thing except ON/OFF of POWER is ini-
tialized.
[cancel method]
The power supply is turned off.

KRF-V7020D/V8020D/VR-307/309/357
8
CIRCUIT DESCRIPTION
FL DISPLAY (X09) ED51
11GRID
17SEGMENT
X8 X3
X3
X4
X3
X3
X2
X2
X2
(X09) S517
SERIAL
BUSY
DATA
VOLUME
ENCODER
(X09) S519
MULTI
ENCODER
(X09) S518
SELECTOR
ENCODER
(X09)
X4
X1
X3
X3
8.0MHz
CE
RESET
X3
X1
X3
AUDIO MUTE
TUNER MUTE
TUNER (X05) IC2
(X05) IC1
-20dB ATT
SD
STEREO
X1
11-MT-120GK
LED
(PEAK. LEVEL)
(DOLBY DIGITAL)
(STANDBY)
(X09) IC6,7
AUDIO SELECTOR (X09) IC51
(X08) IC4,16,17
NJM2279M
(X09) A501
REMOCON
VIDEO SELECTOR IC
TC9163/9164 CXP82852-139Q
(X00) POWER Relay - (K1)
SP. A RELAY - (K1)
SP. B RELAY - (K2)
SURR RELAY - (K3)
CENTER RELAY - (K4)
(X08) IC1
DSP IC
(X08) IC2
DIR, ADC, DAC
YSS902 or
YSS912
CS4226KQG
(CRYSTAL)
(X08) IC5
FUNCTION SW
(X08) IC11
VOLUME IC
M62446FP
LC72131
TC9162
12 KR0 13 KR1 14
KR2
81
KS0 P.CH DOWN ON/STANDBY SPEAKER A
80
KS1 P.CH UP DIMMER SPEAKER B
79
KS2 BAND LISTEN MODE DOLBY VIRTUAL
78
KS3 AUTO SOUND MONITOR
77
KS4 MEMORY SETUP SOURCE DIRECT
76
KS5 INPUT MODE
75
KS6 DSW0 DSW1 DSW2
74
KS7
* No. of : u -COM Port NO.
DSW3 DSW (AC3)
Key matrix
4. Microprocessor CXP82852-139Q(X09 : IC51)
4-1 Microprocessor periphery block diagram

Pin No. Pin Name I/O Description
1,2 G10,11 O Display grids 10,11
3 None - Ic test mode port.
4,5 None I No connect
6 AUDIO I Audio signal detection port. L=AUDIO.
7 VOL.ENC.A I Volume encoder A(clockwise) input.
8 REMOCON I Remote contol signal input.
9 VOL.ENC.B I Volume encoder B(counterclockwise) input.
10,11 None O Ic test mode port.
12-14 KR0-2 I Key return 0-2.
15 PROTECT I Protection signal detection port. H=PROTECT.
16 S.DATA I/O Serial DATA signal.
17 S.BUSY I/O Serial BUSY signal.
18 SP.A+B O Speaker on both A sp. and B sp.
19 SW.6dB.ATT O Sub woofer 6dB attenuation
20 SEL.ENC.A I Selector encoder A(clockwise) input.
21 SEL.ENC.B I Selector encoder B(counterclockwise) input.
22 MULTI.ENC.A I Multi encoder A(clockwise) input.
23 MULTI.ENC.B I Multi encoder B(counterclockwise) input.
24 SL16/XS8 I SL16/XS8 selector. H=16bit.
25 DSP.SCK O DSP(YSS902/912) CLOCK output.
26 DSP.SI I DSP(YSS902/912) DATA input.
27 DSP.SO O DSP(YSS902/912) DATA output.
28 Vdd - Analog power supply(+5V)
29 None I No connect
30 CH.SPACE O Channel space chengeover H=E1 type
31 DSP.CS O DSP(YSS902/912) CS output.
32 CODEC.CS O CS4226 CS output.
33 PLL.DO I Pll ic DO signal input .
34 PLL.ST I Tuner STEREO signal detection port. L=STEREO.
35 PLL.SD I Tuner SD signal detection port. L=TUNED.
36 RCV.CE I Receiver CHIP ENABLE signal port. L=ENABLE.
37 Avss - Analog GND.
38 RESET I Microproessor RESET signal.
39,40 8MHz I Main clock generation(8MHz).
41 Vss - Microprocessor GND.
42 None I No connect
43 TEX - GND.
44 Vdd - Power supply(+5V).
45 Vfdp - Power supply(-33V).
46 SEL.ST1 O TC9162AF/63AF/64AF ST1 output. H=LATCH.
47 PLL.DT O Pll ic DATA signal output .
48 PLL.CK O Pll ic CLOCK signal output .
49 PLL.CE O Pll ic CE signal output .
50 T.TUNE O Tuner mute control. L=MUTE ON
51 A.MUTE O Audio mute control. L=MUTE ON
52 SEL.ST2 O TC9163/9164 ST2 output
53 20dB.ATT O Volume 20dB attenuation control. H=ATT. OFF
54 VOL.DT O Volume ic (M62446SP) DATA control.
55 VOL.CK O Volume ic (M62447SP) CLOCK control. H=ACTIVE
56 VOL.ST O Volume ic (M62448SP) ST control. H=ACTIVE
57 DSP.SCB O DSP(YSS902/912) chip selector
58 VCR.A O Video ic (NJM2279M) cont1 control. H/L=STATIC
59 VCR.B O Video ic (NJM2279M) cont3 control. H/L=STATIC
60 FA.RLY O Front A speaker relay control. H=RELAY ON
KRF-V7020D/V8020D/VR-307/309/357
9
CIRCUIT DESCRIPTION
4-2 Pin description

KRF-V7020D/V8020D/VR-307/309/357
10
CIRCUIT DESCRIPTION
Pin No. Pin Name I/O Description
61 FB.RLY O Front B speaker relay control. H=RELAY ON.
62 C.RLY O Center speaker relay control. H=RELAY ON
63 S.RLY O Rear speaker relay control. H=RELAY ON
64 POWER.RLY O Power relay control. H=RERAY ON
65 STANDBY.LED O Standby LED control.H=LED ON
66 DOL.DIG.LED O Dolby digital LED control.H=LED ON
67 DOL.VIR.LED O Dolby virtual LDE control.H=LED ON
68 DTS LED O DTS LED control. H=LED ON
69,70 None O No connect
71 PACk CTL O Non oscillation of power pack ic at power off. L=STOP OSCILLATION
72 DSP.IC O DSP(YSS902/912)/CS4226 initial clear .
73 None O No connect
74-81 P1-8/KS7-0 O Display segments 1-8 & key scan 7-0.
82-88 P9-15 O Display segments 9-15.
89 Vdd O Microprocessor power supply(+5V)
90,91 P16,17 O Display segments 16,17
92-100 G1-9 O Display grids 1-9.

XI XO
CPO
SDOA0
24 19
9 8
23 22
5 6 7
12
88
2
89
15
878670
59 61
34
64 58
42 ~ 44
25 ~ 29
52
16
17
53
54
55
56
85
84
82
83
57
92 ~ 99
32 ~ 39
66
67
68 69 65
48
47
46
45
18
49
SDOA1 SDOA2
SDIB0
SDIB1 SDIB2 SDIB3
RAMD0~7
72 ~ 79
RAMCEN RAMWEN
RAMOEN
RAMA0~16
OVFB
SDOB INTERFACE
SDIB INTERFACE
SDOA INTERFACE
SDIA INTERFACE CRC
SDIASEL
SDIBSEL
IPORT0~7
CONT.
/SDBCK0
SDBCK0
SDWCK0
SDIA0
SDIA1
SURENC STREAM0~7
OPERATION
CLOCK (30MHz)
KARAOKE
MUTE
CRC
AC3DATA
DTSDATA
NONPCM PLL DELAY RAM
L, R
Ls, Rs
C, LFE
INPUT
BUFFER
CONTROL REGISTER
U-COM INTERFACE
24 * 24
Main DSP
Dolby digital/ProLogic/DTS
DECODER
COEFFICIENT
PROGRAM
RAM
24 * 16
Sub DSP
DATA RAM
SDOB3
RAMD : RAM data
RAMA : RAM address
SDOB2
SDOB1
SDOB0
SDWCK1
SDBCK1
EXT. RAM
INTERFACE
CONT.
SDOACKSEL SDIBCKSEL SDOBCKSEL
ERAMUSE
/CS
SO
SI
SCK
OPORT0~7
/CSB
SCK
SI
11
KRF-V7020D/V8020D/VR-307/309/357
CIRCUIT DESCRIPTION
5. Dolby digital/DTS IC: YSS902/YSS912 (X08: IC1) 5-1 Block diagram (YSS912)

CIRCUIT DESCRIPTION
KRF-V7020D/V8020D/VR-307/309/357
12
Pin No. Pin Name I/O Descriptions
1 Vdd1 - Power supply(+5V)
2~4 - - No connect
5~7 SDIB0~2 O PCM output port for sub DSP
8 XI I Crystal oscillation port.(902:6.25~50.0MHz,912:12.288MHz)
9 XO O Crystal oscillation port.
10 Vss - GND
11 AVdd - Power supply(+3.3V) for PLL
12~18 - - No connect
19 CPO O PLL output port.
20 AVss I GND
21 Vdd2 - Power supply(+3.3V)
22 SDOA2 O PCM output port from main DSP
23 - - No connect
24 SDOA0 O PCM output port from main DSP
25~29 - - No connect
30 Vss - GND
31 Vdd1 - Power supply(+5V)
32 - - No connect
33 OPORT1 O -
34~39 - - No connect
40 Vss - GND
41 Vdd2 - Power supply(+3.3V)
42-44 - - No connect
45 SDO2 O PCM output port from sub DSP(C,LFE/SWch)
46 SDO1 O PCM output port from sub DSP(LS,RSch)
47 SDO0 O PCM output port from sub DSP(FL,FRch)
48,49 - - No connect
50 Vss - GND
51 Vdd2 - Power supply(+3.3V)
52~59 - - No connect
60 Vss - GND
61 - - No connect
62 /IC I Initial clear port.
63,64 - - No connect
66 /CS I Microprocessor interface chip selector input port.
67 SO O Microprocessor interface serial data output port.
68 SI I Microprocessor interface serial data input port.
69 SCK I Microprocessor interface clock input port.
70 - - No connect
71 Vdd1 - Power supply(+5V)
72~79 - - No connect
80 Vss - GND
81 Vdd2 - Power supply(+3.3V)
82 SDIWCK 0 I Word clock for SD input ports.
83 SDIBCK 0 I Bit clock for SD input ports.
84 SDIA I AC3 bit stream data input port.
85~89 - - No connect
90 Vss - GND
91 Vdd2 - Power supply(+3.3V)
92,93 - - No connect
94 IPORT5 I Input port register
95 - - No connect
96~99 IPORT3~0 I Input port register
100 Vss - GND
5-2 Pin description

8. AUDIO INPUT SELECTEOR IC : TC9162AF (X09:IC7)
(PIN NO.) (2,27) (3,26) (4,25) (6,23) (7,22) (8,21) (10,19) (11,18)
INPUT SW NO. R1,L1 R2,L2 R3,L3 R4,L4 R5,L5 R6,L6 R7,L7 R8,L8
OUTPUT ATT OFF ATT1 ATT2 VIDEO1 VIDEO2 VIDEO3 COM MONITOR
TUNER
PHONO
CD
MD/TAPE
VIDEO1
VIDEO2
VIDEO3
MONITER
INPUT 0dB
INPUT -3dB
INPUT -6dB
*1: ,it's the same with display input selector on MONITOR output.
7. AUDIO INPUT SELECTEOR IC : TC9164AF (X09:IC6)
(PIN NO.) (2,27) (3,26) (4,25) (5,24) (7,22) (9,21) (10,19) (11,18)
INPUT SW NO. R1,L1 R2,L2 R3,L3 R4,L4 R5,L5 R6,L6 R7,L7 R8,L8
TUNER PHONO CD MD/TAPE MD/TAPE VIDEO 1ANALOG DIGITAL
OUTPUT REC REC L/R L/R
TUNER
PHONO
CD
MD/TAPE
VIDEO1
VIDEO2
VIDEO3
MONITER
ANALOG
INPUT DIGITAL STEREO
INPUT DIGITAL except STEREO
*1:It's open except STEREO/VIRTUAL on DTS.
*2: It's the same with MONITOR output.
*3: It's the same MONITOR OFF.
6. SURROUND FUNCTION IC : TC9162AF(X08:IC5)
(PIN NO.) (2,27) (3,26) (5,24) (6,23) (8,21) (9,20) (11-) (18-)
INPUT SW NO. R1,L1 R2,L2 R3,L3 R4,L4 R5,L5 R6,L6 R7 L7
OUTPUT ANALOG DIGITAL RS/LS R/L SUB W. VIDEO3 NO SUB W. NO SUB W.
TEST TONE
INPUT DIGITAL
INPUT ANALOG
FRONT LARGE
STEREO
S. DIRECT
SP. A,B ON
SP. A ON
SP. B ON
SP. A,B OFF
SUB W. ON
SUB W. OFF
9. SPEAKER SETUP
SUB WOOFER
YES YES or NO
FRONT SP.
NORMAL LARGE
CENTER SP.
NORMAL(YES) NO LARGE NORMAL NO
SURROUND SP.
NORMAL(YES) NO NORMAL(YES) NO LARGE NORMAL NO NORMAL(YES) NO NORMAL(YES) NO
CENTER MODE
(PRO LOGIC)
NORMAL - PHANTOM - WIDE WIDE - NORMAL - PHANTOM -
KRF-V7020D/V8020D/VR-307/309/357
CIRCUIT DESCRIPTION
13

ADJUSTMENT
KRF-V7020D/V8020D/VR-307/309/357
14
FIG.No. ITEM INPUT
SETTINGS OUTPUT SETTINGS ALIGNMENT POINTS ALIGN FOR
RECEIVER
SETTINGS
1DISTORTION
(STEREO)
(A)
98.0MHz
1kHz,±68.25kHz dev.
Selector : L or R
Pilot : ±6.75kHz dev.
70dBf(ANT. input)
(B) IFT
(TUNER A1) Minimum
distortion
(L or R)
98.0 MHz
2 TUNING LEVER
(A)
98.0MHz
MONO
1kHz,±75kHz dev.
25dBf(ANT. input)
(B) VR1 (TUNER
UNIT)
Adjust VR1 and stop
at the point where
ED51 (TUNED)
goes on.
MONO
98.0 MHz
FM SECTION SELECTOR : FM
(A)
(B)
(C)
REC OUT
(D)
AM SG
FM-MPX-SG
FM-MPX-SG POLAR SG
AC voltmeter Oscilloscope Distortion meter
Dummy antenna

KRF-V7020D/V8020D/VR-307/309/357
WIRING DIAGRAM
15
CN1 CN9
GND
CH SPACE
DE-EMPHASIS
S1
J1
AM ANT
FM75
S1
POWER
SW
WH1CN3
LSch4
+
3 RSch
+
2 Lch
+
1 Rch
+
J6
PRE OUT
J4
SUB WOOFER
Lch 5
Rch 6
Lch 3
Rch 4
J2
Lch 1
Rch 2
Lch 1
Rch 2
PHONO
J1
MONITOR
REC OUT
MONITOR
PLAY IN
REC OUT
VIDEO1
CN11 CN51
WH51
CN12
CN1
J1 AC
OUTLET
USED
(Y,M,I)TYPE
T1
S2S3
CN11 WH2
WH52
Lch 3
Rch 4
CD
Rch 4
Lch 3
Lch 1
Rch 2
PLAY IN
REC OUT
J7
MD/TAPE
Rch 4
Lch 5
Rch 6
PLAY IN
VIDEO3
PLAY IN
VIDEO2 J3
Lch 1
Lch 3
Rch 2
VIDEO1
PLAY IN
SURROUND
SPEAKERS-B
J5
+1 Rch
+2
+3
Lch
Cch
SPEAKERS-A
CN2
CN12 CN4
CN13
CN1
CN52
CN53
CN8
WH1
CN1
CN2
J3
VIDEO3
VIDEO2
DIGITAL
DOLBY
/PCM IN J1
VIDEO2
A1
CD
VIDEO3
J2 VIDEO1
MONITOR
VIDEO1
VIDEO
OUT
VIDEO
IN
SYSTEM
CONTROLS1 SW
CN3
J4
SYSTEM
CONTROL
WH1
U.S.A. K6
Y7PX
M8GENERAL MARKET
AUSTRALIA
CHINA
MALAYSIA 0-71
0-21
X8
C8
I8
ABB.
KRF-V8020D (X05-498X-XX)
PX
COUNTRY
DESTINATION
CHINA
GENERAL MARKET
AUSTRALIA
UNIT No.
Y8
0-21
0-71
X7
SHANGHAI 62-10 V7
M7
C7
VR-357 (X05-4980-10)
(X05-498X-XX) / (X05-5062-10)
KRF-V7020D
ABB.
ABB.
DESTINATION
COUNTRY
CANADA
COUNTRY
DESTINATION
U.S.A.
UNIT No.
0-10
UNIT No.
P7
K7
VR-309 (X05-4980-10)
ABB.
U.S.A.
CANADA
COUNTRY
DESTINATION
CANADA
UNIT No.
0-10
P8
K8
0-10
P6
ABB.
VR-307 (X05-4980-10)
DESTINATION
COUNTRY UNIT No.
COUNTRY ABB.
AUSTRALIA
GENERAL MARKET
AUSTRALIA
GENERAL MARKET
(X09-616X-XX) / (X09-6342-10)
KRF-V7020D
KRF-V8020D (X09-616X-XX)
VR-357 (X09-6160-10)
UNIT No.
CHINA C8
X8
MALAYSIA
COUNTRY
PX M8
I8
Y8
ABB.
3-02
0-72
0-22
UNIT No.
DESTINATION
CHINA C7
X7
DESTINATION
COUNTRY
PX ABB.
M7
Y7
0-71
SHANGHAI V7 42-10
3-01
0-21
UNIT No.
DESTINATION
CANADA
U.S.A.
COUNTRY
P7
K7
ABB.
U.S.A.
CANADA P8
K8
0-10
0-11
VR-307 (X09-6160-10)
VR-309 (X09-6160-11)
UNIT No.
UNIT No.
U.S.A. K6
DESTINATION
CANADA P6
DESTINATION
COUNTRY ABB.
0-10
AUSTRALIA X8
PX
CHINA Y8 C8 0-71 3-01
2-91
VR-357 (X00-2910-11)
GENERAL MARKET M7 0-20
KRF-V8020D (X09-291X-XX)
ABB.COUNTRY
MALAYSIA
GENERAL MARKET M8
I8
DESTINATION
0-20
UNIT No.
AUSTRALIA X7
CHINA
PX C7 Y7
0-71
SHANGHAI V7 92-11
2-91
3-01
ABB.
(X00-291X-XX) / (X00-2892-11)
KRF-V7020D
COUNTRY
DESTINATION UNIT No.
ABB.COUNTRY
CANADA
U.S.A. P7 K7
DESTINATION
0-11
UNIT No.
U.S.A. K6
UNIT No.
ABB.
CANADA P8
U.S.A.
COUNTRY K8 0-11
VR-309 (X00-2910-11)
DESTINATION
CANADA P6 0-11
ABB.
VR-307 (X00-2910-11)
COUNTRY
DESTINATION UNIT No.
GENERAL MARKET M8
KRF-V8020D (X08-2960-22)
COUNTRY
PX
DESTINATION UNIT No.
Y8
ABB.
CHINA
AUSTRALIA
PX
GENERAL MARKET C7
X7
SHANGHAI V7
0-21
82-10
Y7
M7
(X08-2960-21) / (X08-2982-10)
KRF-V7020D
DESTINATION
COUNTRY
CANADA
UNIT No.
ABB.
P7
VR-357 (X08-2960-10)
U.S.A.
COUNTRY
DESTINATION UNIT No.
0-10
ABB.
K7
UNIT No.
U.S.A.
CANADA
DESTINATION
COUNTRY
0-11
K8
P8
UNIT No.
ABB.
VR-309 (X08-2960-11)
CANADA
COUNTRY
U.S.A. P6 0-10 K6
ABB.
VR-307 (X08-2960-10)
DESTINATION
AUSTRALIA
MALAYSIA
CHINA X8
I8
0-22C8
VIDEO 3 IN
VIDEO 2 IN J5
MONITOR OUT
VIDEO 1 IN
VIDEO 1 OUT
S-VIDEO
J6
HEAD-
PHONE
J7
15
1
15
1
AM: 9kHz
FM: 50kHz
50uS
AM: 10kHz
FM: 100kHz
75uS
2
1
2
1
17 17
11
31
(K,P)
(Y,M,I)
(C,V)
(X)
: AC120V 60Hz
: AC110-120V/220-240V~
50/60Hz
: AC220V~ 50Hz
: AC240V~ 50Hz
2
1
F2
F1
120V
110- 240V 220-
1
66
1
5
1
2
1
1
1
4
4
31
5
1
5
1
2
1
8
1
21
1
13
1
13
1
15
1
21
1
15
1
SL16
XS8
2
1
SBUSY
SDATA
SL16
XS8
5
1
5
1
YEL
GRY
RED
BLU
BLK
BLU
RED
ORG
BLK
ORG
TUNER UNIT
(X05-4980-XX)
(Y,M,C,I)TYPE
(X00- ) (B/6)
USED EXCEPT (K,P) TYPE
(X09-616X-XX) (A/3)
(X09- ) (B/3)
DISPLAY UNIT
AUDIO UNIT
(X09- ) (C/3) (X00- ) (D/6)
(X00- ) (C/6)
USED EXCEPT (M,Y,I) TYPE
USED (M,Y,I) TYPE
KRF-V7020D/V8020D
USED
(X00- ) (A/6)
POWER SUPPLY UNIT
SURROUND UNIT
(X08-2960-XX) (A/2)
(X08- ) (B/2)
USED
VR309/KRF-V8020D
VR-307/309/357

16
ABDCE
2
1
3
5
7
4
6
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD(Component side view)
POWER SUPPLY UNIT
CENTER
SPEAKER SPEAKERS
FRONT
AC OUTLET
X00
F/6
1
3
F/6
X00 CLR
14
X00 D/6X00 B/6
A/6
X00-291X-XX
POWER PHONES
21
1
3
2
1
12
21
1
6
1
5
240V
C/6
AC220- 120V AC110- AC110-
240V
AC220- 120V
X00
16
51
B
E
B
E
CONTROL
SYSTEM

C206
C198
R186
C199
R201
L2
R20
R29
R30
R31
R179
R27
R18 R17
R2
L6
R140
C136
R138
R136
R151 R152
R133
C132
R132
C140
R166
R165
R156
R157
R155
R153 R154
R160
R158
R159
R38
R42
R114 R115
R113
R111
R112
R119R120
R118
R116 R117
R104
R105
R103
R101
R102
C89
C90
C93
C94
C43
C40
C44
C115C116
C111C112
C119C120
C102 C103
C101
R106
C104
C10
R184
C17
C31
C32
C39
C33
C34
C28
C215
C216
C213
C214
C185
C217
R181
R180
R182
R197
R196
R198 R195
R194
C155 C156
C151 C152
C160
C159
C61
C60 C46
C55
C23
C22
C24
C25
R25
R28
R139
R137
R50
R52
R51
R56
R54
R53
R55
R131
R135
L4
R134
C135
C131
C139
L5
R45
R44
R204
R207
R209
R47
1
14
28
15
1
7
14
8
C7
C1
R12 R9 R4
R10
R11
C11 C12
C14 C13
R1
C27
R8
R251
C261
R256
R262
C258
R261
C259
C257
R255
C253
C254
C251
C265 R263
C260
R264
R253
R254
R252
C252
C276
C255 R257
C256
R258
R259
R260
C274
IGO
R43
R19
D10
D9
IC4
IC5
D4
D3
IC18
C200
R24
R23
R175
R174
R22 R21
R32
R178
R26
R176
R177
R173
C15
R46
C35
C36
R3
R33
R124 R123
R121
R122
R142
C138
R143
R167
R163 R164
R171
R172
R170
R168 R169
R161 R162
R71
R72
R70
R69
R37
R34
R35
R41 R39
R40
R108
R107
C85
C86
C95
C42
C41
C45
C117
C118
C108
C107
C9
C16
C8
C3
C6 C4
C5
C29
C30
C37
C18
C197
C186
C187
C172 C173
C165
C171
C176
C174
C175
C202
R190
R189
R183
R193
R191
C162
C125
C123
C124 C121C122
C128
C126
C157
C161
C158
C146
C145
C150
C148
C19
C2
C59
C58
C21
C203
C201
R141
R6
R5
R7
R14
R13
R16
R15
R144
R36
C137
C141
C147
R203
R206
R210
R208
R48
14 8
7
1
130
31
50
51
80
81
100
1
11
12
22
23
33
44
34
I
O G
85
4
1
14
58
85
4
1
8
5
1
4
14
8
5
121
2242
MON V1REC VIDEO1
VIDEO2CD
VIDEO3
VIDEO2 VIDEO3
SUPPLY
POWER
BUF.
SGND
BUSY
SDATA
GND
DIR
AD/DA
16 8
VIDEO
SEL.
LPF
DSP
VOL
R66
R68
R67
R64
C84
C205
C204
C208
C207
C209
C210
C38
C88
C110
C164
C109
C178
C92
C177
C182
C97
C144
C154
C220
C20
C143
C133 C134
C219
C212
C211
C113
C153
C114
C83
C163
R200
R199
R61
R60 R59
L3
L1
C57
R62
C50
C51
C26
C52
C56
R58
R57
X2
X1
V1REC
7
V2
C266
C262
C264
V3
C263 8
1
714
8
V1
C280
C267
114
C278
C275
C272
C273
C277
MON
G
IO
C279
15
C142
R205
14
85
1
5
1
15 BE
OG I
O
GI
121
21
BE
IC15
IC11
Q2
Q1 D5
IC3
D1 D2
D8
D7
D6
IC8
IC9
IC10
IC7
IC6
IC2
IC1
D11
D12
IC14
WH2
WH2
E1
IC13
IC12
CN3
CN1
S1 J1 A1
J3
J2
J4
CN2
WH1
X08-2960-10 A/2 (J70-1268-11)
J5
IC16
IC17
J6 WH1
IC19
X08 B/2
VIDEO3 VIDEO2 VIDEO1 VIDEO1 MONITOR
IN IN OUTIN OUT
CONTROL
SYSTEM
MONITOR
VIDEO OUT
VIDEO1VIDEO1VIDEO2
VIDEO IN
VIDEO3VIDEO2
CD
VIDEO3
/PCM IN
DOLBY DIGITAL
1
11
12 22
8
5
1
1
30
15
16
1
2
115
X05-498X-XX ANTENNA
18
9
16
B
E
BE
E
BE
B
E
B
EB
EB
BE
B
E
BE
E
B
EB
EB
FHJLNGIKMO
2
1
3
5
7
4
6
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD(Component side view)
TUNER UNIT SURROUND UNIT
17 18

PQSUWYRTVX
2
1
3
5
7
4
6
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD(Component side view)
19 20
IC5
IC10
IC8
IC12 IC11
IC7 IC6
Q15 Q16
Q28 Q29Q27 Q26
D15
IC9
D22
D26
D27
D23D21 D20
Q42
Q22
Q40
Q38
D28
D30
D33
Q41
Q501
Q502
IC53
Q503
IC51
C169
R132R131
R129
R130
R138
R139
R137
R135
R136
R128
R120
R121
R119
R117
R118
R122
R126
R127
R125
R123 R124
R148
R147
R146
R151
R150
R149 R142R141
R140
R145
R144
R143
R152
R153 R154
C120
C123
C127
C131
C139
C147C151 C128C132 C119
C140
C148C152 C136 C124
C162
R158
C102C101
R102
R104
C105
R101
C106
R103
R105
R106
R171
R155
C157
R157
C159
C161
R30
C160
R156
C158
R174
R173
R170
R169
R172
R244
R232
R242
C170
R230
C245
C233
R241
R229
C241
R227
R369
R367
R243
R231
C246
C234
R372 R256
C257
R251
C253
R371
R255
C258
C254
R370
R353
R267
R252
R250
R368
R240
R226
C242
C230
R239
C229
R238
R228
R354
R264
R263
R316
C288
R317
C287
R313
R356
R272
R355
R270
R269
R32
R314
R318
R319
R320
R363 C294
R330
C299 R328
R329
R361 C293 R327
R310
R332
R331
R333
R334
R365
R43
R274
R271
R44
R41
C135
C143 C144
R177
R175
C177
C180
C176
R178
C178
C175
R176
C179
R315
C305
C290
C289
C306 C302
C301
R277
R204
C269
R253
R254
C263
C270
R278
R12
R11
R286
R357
R387
R202
C278
C303
C280
C298
C296
R275
R4
C304
C264
R17
R276
R201
R203
R19
R50
R51
R34
R291
R47
C121
R16
R5
R6
R3
R284
C13
R285
R283
C247
R293
C249
C250
C122
C252
C248
C251
C295 C297
C292
C11
C291
C14
R268
C12
R206
R27
R28R35
R350
R348
R349
R273 R347
R1
R2
TH1
R8
R384R386
R385
R389
R388
41
85
41
58
41
58
41
58
41
58
15 28
1
14 1
14
15 28
5
8
14
EB
EB EB EB EB
EB
EB
EB
EB EB
R539
R542
W503
R536
BE
BE
C513
C520 C519
C512
R562 R587
G
R578
OI
C514
R592
R549 BE
51 50
81
80
C504
C531
31
C532
R521
30
R607
R534
R606
R605
1
100
EB
Q6
Q4
Q25
Q24
Q23
D17
J3
J6
J5
Q5 Q3
Q8
Q7
Q32
Q14
D12
D18
D11
Q9
Q10
D14
Q11
Q12
Q13
D19
D9
D8
D3
J4
Q43
D13
D4
Q31
CN12
D16
CN9
J2
IC3
Q44
CN11
IC4
Q20
Q19
CN1
Q37
Q21
Q17
Q34
Q18
Q35
Q1
IC1 IC2
WH1
CN13
J7 J1
CN8
Q2
D31
D32
GLAY
OUTPUT INPUT SEL
PRE OUT
X09-6160-10 A/3
(J70-1270-11)
POST AMP
D2
Q36
P1
2CH AMP
3CH AMP
D1
D520
S512
WH51
S503
S501
D24
D25
S509
S521
CN52
WH52
S502
S507
S506
D525
D516
D509
CN53
D500
D501
D502
D515
D514
D508
D511
D521 D512
D506
D504
D507
D522
S505
S511
S516
D503 D505
D519 D513
S514
S519
D529
D518
S518
D517
D526
D510
S510
S504
S515
A501
D530
CN51
S517
D531
D527
S520
WH52
X09 C/3 X09 B/3
LR
SPEAKERS B
SURROUND SPEAKERS SPEAKERS A
CRL
OUT
VIDEO 1
PRE VIDEO 1
IN VIDEO 2 IN IN OUT
MONITOR
PLAY REC REC
MD/TAPE
PLAY CD PHONO
C156
C163
C164
C155
C108
C103
C36
C107
C104
C115
C116
C308
C117
C165
C114
C113
C118
C172 C171
C168 C167
C166
C111
C112
R113
R112
R111
R108
R107
R110
R109
R303
C328
C327
R160
R280
R287
R295
R116
R115
R352
R351
C237
C238
C323
C321
C325C326
R161
R304
C25
C267
C265
C268
C266
R279
R292
C273
C271
C274
C272R288
R262 R265
R261
R294
R307
C324
C322
C329
C330
C277
C279
C309
C314
C311
C315 C313
C310
C316
C285
C284
K3
K4
K1
R311
R312
K2
C8
C7
R326
R339
R325
C1
R10
R9
R24
C283
C2
C37
C35
C19
R18
R20
W17
W159
W179
W27
W63
W62
W65
W122
W131
W128
W112
W121
W135
W150
W28
W106
W187
W145
W177
W178
W192
W175
W180
W162
W169
W166
W194
W126
W143
W148
W125
W119
W146
W130
W156 W155
W124
W163
W154
W101
W100
W96
W94
W18
W144
W113
W110
W107
W142
W165
W92
W132
W40
W9
W104
W6
W22
W172
W164
W116
W73
W68
W117
W188
W114
W2
W157
W64
W115
W3
W56
W51
W190
W186
W35
W147
W50
W183
W98
W97
W21
W48
W38
W99
W182
W88
W58
W75
W76
W103
W149
W78
W45
W8
W33
W32
W34
W37
W26
W83
W23
W87
W42
W80
W74 W69
W67 W82
W90
W66
W41
W79
W70
W72
W185
W137
W151
W57
W152
W167
W184
W12
W160
W1
W153
W176
W36 W44
W4
W24
W55
W61
W60
W25
11
-30V
1
1
1
1
1
STK410-030 STK411-230
1
PHONO EQ.
POWER
SUPPLY
1
R49
R37
C38
W161 C307
R167
R166
R168
R165
R46
C23
R23
C24
R323
R324
R114
R302
C181
C182
C173
C174
R163
R164
R159
C333
R162
R237
C334
R249
R259
R344
C26
R338
C331
C332
C202
R14
R341
R337
R260
C201
R13
L5
R225
R205
R266
C32
C31
R309
R48
C286
R301
C41
C21
R33
R31 R29
R306
R305
R257
R258
C16
C15
C43
C282
C281
R383
R346
C40
R381
R382
C39
C33
C34
C109
C110
L2
L1
R281
R282
R379
R380
R45
R300
R299
R289
R290
R297
C18
C22
C30
C29
C42
R15
C335
C6
C5
W405 W404 W403 W402 W401
R25
R26
R22
R21
W95
L3
C9
C3
C10
L4
8
G
I
O
O
G
I
E
B
BE
BE
BE
EB
EB
BE
BE
BE
B
E EB
EB
B
E
E
B
BE
BEE
B
BE
EB
EB
EB
BE
EB
E
B
B
E
E
B
15
15
B
E
EB
122
17
1
24
13
EB
5
2
EB
R532
1
3
1
1
C529
W19
MONITOR
BASS BOOST
SP A
W5
R506
R505
SP B
W29
R531
R530
W7
W20
W11
W16
21
R522
W31
R595
1
S.DIRECT
INPUT LISTEN
SOUND
W53
R586
R585
W49
R591
W77
C521
W71
C530
R501
13 W14
W10
W13
R559
R557
4
R550
W39
C508
R561
R558
R560 1
D.DIGITAL
V.SURROUND
DTS/D.DIGITAL
R533
W30
R589
R547
R546
ED51
PTY
DIMMERDIMMER
PTY
W47
W46
W59
TA/NEWSTA/NEWS
P.CALL P.CALL
RDS DISP
R520
W52
R608
W93
W133 W129
R541
R538
R535
R540
R537
INPUT SEL
R576
R581
R582
R577
C501
SET UP
MULTI CONT
W84
W81
W85
W89
W91
W86
W197
R597
W111
R525 R527
R526
W109
W102 W105
W108
R507
R517
R518
R503 R508
R510
W140 C517
W181
C525
C503
C507
C509
W139
C535
W141
W134
W138
W136
R583
C534
W158
C502
W168
R584
AUTO
BAND MEMORY
R596 R519
35
R516
R568
R609
X501
W170
R509
W173
R604
R570
R572
R569
R524
R571
R552
R551
C526
R564
R563
R554
R553
R565
C506
W174
W171
R544
R573
1
C505
R548
R511
R515
R514 R513
R512
W191
VOL CONT
C518
C511
R545
R529
W193
W189
R528
R575
R580
R523
17
R602
W196
W195
POWER
POWER
1
4
AUDIO UNIT

ACEGIBDFHJ
2
1
3
5
7
4
6
GND
GND
ANT2
ANT1
4
3
2
1
100
100
R12
680K
R11
100K-
680-2.2K
R6
8P
0-8P
2-6P
C20
150P
R9
L6
C12
R10
10K
C15 27P
27P
C14
C16
3.9K
C13
R8
10K
R7
C17
100P 8OUT
IF-OUT 7
C10
33K
L3
0-100
100K
0-8P
C18
C1
180P
L1
L2
10P
R1
C2
C6 4P
C3 0-8P
1.2M
470K-
1000P
180P
0.1
C9
68
R14
C19
C5
R5
L5
L4
3P
R13
680
C7
27P
R3
R2 C4
R4
33K
0.1
+B 6
VT
IFT
C8
0.1
5
OSC
270
R44
100
0.01
C3 R8
3.3K
R7
820
680
R4
CF1 CF2
R12
100
1/4W
4P
C75
R41
100K
L1
10K
R42
0.01
C36
1uH
L2
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
C20
10u10
C19
+
0.047
C22
3.3u35
C21
+
R25 C26330P
10u16
C23
+
4.7u25
C27 C25
VR1
10K
R27 R28
2.2u50
C29
+
2.2u50
C28
+
C31
C30
10u16
C38
+
10u16
C37
+0.01
C34
C33
0.01
560
R30
47K
R31
0.047
C12 22
R16
R1433K
R15
CF3
10u16
C14
+
R17 3.6K
C45 22P
+
C15
1u50
3.9K
3K
R18
0.47u50
C16
+
R19
C17
1u50
+
8.2K
L4
1
C81
L3
0.047
C11
47u16
C10
+
21
R23
R83 1K
47P C76
6P
C39
C41
22P
10uH
L9
C40 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
X1
12P 10P
1.2K
R59
R58
12K
R49 10K
R48 1K
R47 1K
R46 1K
R45 1K470P
C44
47u16
C48
+
10u16
C46
+
1000P
2.2u50
+
0.022
R531K
R54
R51
5.6K
100
R52
470
R50
C47
1/4W
1K
R56
100P
C52 1K
R57
470P
C51
100P
C50
33K
R55
R43
220
VCC
2
1
4
3
E1
C1
0.022
C18
L5
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
DET
S-LEVEL
SD
STEREO
R
GND
L
+15V
-15V
T. MUTE
PLL DT
PLL CLK
PLL CE
PLL DO
CH.SPACE
R82
2.7K
1u50
C72
+
47u16
C73
+
R1
R5
R6 220
0.01
C5 R11
C6
0.01
390
R9 1K
R10
C7 47u16
+
150
R81
C8 0.01
1W
C32 4.7u35
+
W82 W83
820
8.2K
R75
1K
1.8K
R76
R78
R77
47K
R74
C83
100P
W56
6
3
5
4
3
5
4
6
R84
1K
1K
1K
R72R73
C78
C49
2.2K
C24
R85
1M 1M
R86 R87
1M 0.022
C85
0.022
C84
56K
R88
470P
C86
3300P
C88
33K R89
R20
4700P
C89
4700P
C90
1
C91
100P
C77 100
R29
R33
R34
3300P
C35
2.7K
R32
VREF T.METER
UNIT No.
0-10
CANADA
DESTINATION
COUNTRY
U.S.A. ABB. K6
P6 6.2K
A
NO
R27,
28
R14
100 4.7K
R23
22K
R25
15K
R72,
73 C30,
0.033
31
LA1837
IC1
YES
CN2
CF1,2
L72-0596
CF3
NO
W56
NO
S1
NO
0-71
0-21
PX
AUSTRALIA X7
Y7
UNIT No.
DESTINATION
COUNTRY ABB. R27,
7.5K
A82
R15,
270
R14 28
3.3KNO 18K
R23 R25 73
8.2K
R72, 31 C30,
YES
NO
R29
NO
YES
YES
0.022
C77
NO
YES L72-0531
CF1,2 L4,
5
NO
IC1CF3
LA1838YES
W56CN2
YES
NO
S1
NO NO
YES
B
+B
(MS2)
(MA5)
YES
L4,5
GENERAL MARKET M7
CHINA C7
33
33
0.022
470P
C42 C43
YES
R15,
82
NO
R29
YES
COUNTRY
DESTINATION
CANADA
U.S.A. L72-0596
R29
P8 0-10 100NO YES
UNIT No.
K8
ABB. R15,
R14
A82
4.7K NO22K 6.2K 0.03315K
R27,
R23 28 R25 C30,R72, 3173
LA1837
(MS2) NO YES NOYES
IC1
CF1,2 CF3 L4,5 W56CN2
NO
S1
COUNTRY
DESTINATION
CANADA
U.S.A. L72-0596
R29
P7 0-10 100NO YES
UNIT No.
K7
ABB. R15,
R14
A82
4.7K NO22K 6.2K 0.03315K
R27,
R23 28 R25 C30,R72, 3173
LA1837
(MS2) NO YES NOYES
IC1
CF1,2 CF3 L4,5 W56CN2
NO
S1
CHINA
AUSTRALIA
COUNTRY
GENERAL MARKET
DESTINATION
PX
L72-0531
3.3K
C8
X8 0-71
Y8
M8 0-21
NO
270
YES NO
NO
18K 7.5K YES
NO
0.0228.2K YES
UNIT No.
ABB. R14
AR15,
82 R23 R25 R27, 28 R29 C30, 31
R72,
73 C77
LA1838
(MA5) YES
NO
NO YES NO
NO
YES
IC1
CF1,2 CF3 L4,
5W56CN2 S1
I8MALAYSIA
R79 3.3K
1000P
C74
NO
NO
NO
C82 0.01
C8,
77 C74, 82
NO YES
77
C8, 82 C74,
NO YES
77
C8, 82 C74,
C74,
82
C74,
82
C8
YES
C8
YES
+B
+B
+B
+B
+B
+B +B
+B
+B
+B
+B
+15V
15V
+15V
+15V
+15V
+B
+15V
+B
+B
+B
+B
+B
+B
+15V +15V
62-10
SHANGHAI V7 YES
TR3
1T362
: HVU202 or
: 2SC2413
D1-3
TR2,3
: 2SK302
: 2SC2714TR1
FET
D3
TR2
OSC
BUFFER
OSC
DISTORTION(ST)
D1
FET
D2
RF AMP
TR1
MIX
GND
FM 75
J1
FM FRONT-END
Q1
D1 LEVEL
FM TUNING
Q3
Q4
EMPHASIS
75uS: ON
50uS: OFF
A
PLL
D4
FM +B
Q14
FM/AM/MPX
SYSTEM IC
CN2
MUTING
CN1
DISCRIMINATOR
Q2
IF AMP
D3
D8
D9
Q10
Q11
Q12
DRIVE
MUTING
D5
IC1 :
IC2 : LC72131 Q1,3,4 : 2SC4081(R,S) or
Q2,12,14 : 2SA1576A(R,S) or
Q10,11 : 2SD1757K
D1 : DA204U or
D3 :
D8,13 : MA111
D4 :
D9 :
D5 :
A1 :
D13
AM ANT
SW
S1
CH.SPACE
DE-EMPHASIS
FM :100kHz 75uS
AM :10kHz
AM :9kHz
FM :50kHz 50uS
VR-307 (X05-4980-10)
KRF-V7020D (X05-498X-XX) / (X05-5062-10) -CN9
X09-A/3
3/4
GND LINE
SIGNAL LINE
B LINE
B LINE
MTZJ3.3(B) or
MTZJ2.7(B) or
MTZJ8.2(B) or
MTZJ5.1(B) or
MA143A or
HZS3.3N(B2)
2SD1819A(Q,R)
HZS8.2N(B2)
HZS5.1N(B2)
2SB1218A(Q,R) 1SS302
HZS2.7N(B2)
VR-309 (X05-4980-10)
VR-357 (X05-4980-10)
KRF-V8020D (X05-498X-XX)
A1 (W02-2622-05)
IC2
IC1
TUNER UNIT (X05-498X-XX)
A
VR-357 (1/4)
VR-309 (1/4)
VR-307 (1/4)
KRF-V7020D (1/4)
KRF-V8020D (1/4)
3.5V
(3.5V)
8.1V
(8.1V)
(0V)
0V
FM ST: 0V
(2.8V)
2.3V
(1.2V)
1.2V
(2.8V)
0V
(0.2V)
0.2V
(7.0V)
7.0V
(9.2V)
8.8V
(0V)
4.3V
(4.0V)
7.0V
(1.8V)
1.9V
(3.7V)
3.6V
(1.2V)
0V
(1.3V)
0.2V
(3.0V)
3.4V
(3.4V)
3.4V
4.4V
(4.4V)
(4.4V)
4.4V
4.4V
(4.4V)
(3.4V)
3.4V
(2.8V)
2.8V
3.6V
(3.7V)
(3.7V)
3.7V
2.5V
4.2V
0.9V
5.0V
2.5V
0V
0V
0V
2.6V
0V
0V
0V
5.1V
6.8V
7.0V
0V
[0.6V]
0V
0V
0V
1.6V
10.3V
10.9V
11.0V
[75uS]
50uS
0V
0V
(0V)
0V
0.9V
(3.5V)
3.5V
(3.5V)
3.5V
OTHER: 4.6V
(8.1V)
8.1V
(3.7V)
3.7V
6.0V
1.0V
6.6V
1.2V
-2.2V
0V
0V
0V
3.4V 3.5V
2.8V
0V
-2.2V
YES YESYES
Y05-3760-10
KRF-V7020D/V8020D/VR-307/309/357
The DC voltage is an actual reading measured with a high impedance type voltmeter as the AM/FM sig-
nal generator is specified to the conditions as shown in the list below. The measurement value may vary
depending on the measuring instruments used or on the product. The value shown in ( ) is actual
reading measured in the AM made.
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 criti-
cal components only with
manufacturer's recom-
mended parts (refer to
parts list). indicates safe-
ty 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 resis-
tance measurements shall
be carried out (exposed
parts are acceptably insu-
lated from the supply cir-
cuit) before the appliance is
returned to the customer.

KLNPRTMOQS
2
1
3
5
7
4
6
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
31
32 33
34
35 36 37 38
39
40
41
42 43
44
45 46 47 48
49
50
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
VSS
IPORT0
IPORT1
IPORT2
IPORT3
IPORT4
IPORT5 IPORT6
IPORT7
VDD2
VSS
RAMOEN
RAMWEN
RAMA0
RAMA1
SDIA1
SDIA0
SDBCK0
SDWCK0
VDD2
VSS
RAMD7
RAMD6
RAMD5
RAMD4
RAMD3
RAMD2
RAMD1
RAMD0
VDD1
RAMA2
SCK
SI
SO
CS
CSB
RAMA3
TEST
IC
RAMA4
VSS
RAMA5
RAMA6
SDBCK0
SURENC
KARAOKE
MUTE
CRC
NOPCM
VDD2
VDD OPORT0 OPORT1 OPORT2 OPORT3 OPORT4 OPORT5 OPORT6 OPORT7 VSS VDD2 RAMA9 RAMA8 RAMA7 SDOB2 SDOB1 SDOB0 SDBCK1 SDWCK1 VSS
VDD1
RAMCEN
RAMA16
RAMA15
SDIB0
SDIB1
SDIB2
XI
XO
VSS
AVDD
SDIB3
TEST
OVFB
DTSDATA
AC3DATA
SDOB3
CPO
AVSS
VDD2
SDOA2
SDOA1
SDOA0
RAMA14
RAMA13
RAMA12
RAMA11
RAMA10
VSS
33
32
31
30
29
28
27
26
25
24
23
10
11
9
VOLTAGE
14
13 12 15 17 16
INPUT
MUX
INPUT GAIN
REFERENCE
AGND2
18 20
19
VA+
AGND1
21
22
AND OUTPUT STAGE
ANALOG LOW PASS
PLL
7
8
5
6
3
4
CONTROL PORT
ADC RIGHT MONO
ADC LEFT
ADC
1
2
FILTERS
DIGITAL
RX/AUXILIARY S/P DIF INPUT
DIVIDER CLOCK OSC/
VOLUME CONTROL VOLUME VOLUME CONTROL CONTROL VOLUME CONTROL VOLUME CONTROL VOLUME
6
DAC
5
DAC DAC DAC
4 3
DAC
2
MUX
CONTROL
DEM
DAC
1
DIGITAL FILTERS
VD+
DGND1
DGND2
DATA INTERFACE
SERIALAUDIO
44 42 43 40 41 39 37 38 34 35 36
21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
YAM CSB
VIDEO A
VIDEO B
VOL STB
VOL CLK
VOL DATA
IC
SDATA
SBUSY
AUDIO
SCK
SI
SO
STB2
YAM CS
CRI CS
SEL DT
SEL CLK
PROTECT
8/16
NC
AMP
6dB
5.3dB 5.3dB
AMP
6dB
14
13
20K
20K 20K
12
11
20K20K
4.14K4.14K
1
2
3
4
DRIVER
75K
4.45K
10
75 75
DRIVER
75K
8
9
4.45K
5
7
6
47P
C252
47P
C251
R252 75
R251 75
3.3K
R254
3.3K
R253
75
100P
C254 R255
75
R256
100P
C253
3.3K
47P
C256
R260
R258 75
R257 75
3.3K
R259
47P
C255
C262 0.33u50
+
C261 0.01
75 75
100P
R261
R262
C264 0.33u50
+
C263 0.01
C257
100P
75 75
100P
R263
R264
C266 0.33u50
+
C265 0.01
C259
100P
C258C260
5
10
13
14 20K
AMP
5.3dB
11
12 20K
4.14K
DRIVER
75K
4.45K
6dB
75
2
1
20K
20K
5.3dB
AMP
4
3
20K
4.14K
DRIVER
75K
4.45K
6dB
75
9
8
6
7
1
1
3
3
10
12
5
5
1
3
5
1
3
5
GND
OUT IN
IN
GND
OUT
C272 100u10
+
C273 100u10
+
C274 0.1C275 0.1 C276 0.1C277 0.1
C278 47u16C279 47u16
+
+
0.01
C280
1
2
3
4
1
2
3
4
5
5
-15V
+15V
IC
VIDEO A
VIDEO B
VIDEO B
VIDEO A
IC
+15V
-15V
GND
IN OUT
0.1
C94
2.2
R68
1/4W
0.1
C95 C93
0.1
C90
1/4W
R66
2.2
C89
0.1
GND
0.1
IN OUT
R62
270 1W
100u10
C92
+
100
R70
R69 20K
4.7K
R72
47K
R71
C86
1 1/4W
R67
C85
0.1
GND
IN OUT
0.1
C88
100u10
+
39 1W
R61
L3
2200u16
C83
+
TEST
X1
1M
R1
C12 15P
C11 15P
18P
C13
18P
C14
10K
R3
470P
C16
0.1
C1
0.1
C2
0.1
C9
R13
R14
C3 0.1
C7 0.1
C45 220P C5 1000P C6 1000P
220
R4
220
R8
220
R9
0.1
C4
R25 2.2K
R20 100K
C17 0.01
C20 4.7u35
+
R24 220
C18 1000P
C10 330P
R16 100K
3
65
66
4
5
6
L2
L6
47u25
C26
+
0.1
C27
75
R29 47P C28
75
R42
47P
C44
7
2
1
8
3
4
6
5
+B
GND
R21
220
1K
R22
R23
220
R15 220
1K
R2
R12 220
R10 220
R11 220
220 220
C33
4.7K
R31 47K R27 2.2K
C34
22P
0.1
C30
1K
R18
C32
0.1
C41 22P
R40 4.7K
R41 47K
R32 4.7K
C29 22P
R39 2.2K
22P
C42
1K
R38
R26
2.2K 0.1
C39
R17
1K
C43 0.1
C31
0.1
C40
0.1
L1
R7 220 R5 220 R6 220
C21 33P
0.1
C19
9
97
98
R46
220
15P
C24
15P
C25
X2
1M
R28
12P
C23
12P
C22
R37
3K
C36
0.22
0.01
C37 C35
0.022
2.2u50
C38
+
99
R44 220 R45 220
2
13
11
65
8
4
5 3
9
6
66
1
2
3
5
4
6
7
14
13
12
11
10
9
8GND
+5V
96
99
98 97
96
SB SD
S1
4
8
5
39
R35 1K R34 1K
R33 1K
41
40
R43 220
R59 100 1W
R60 100 1W
8
YC
CY
CY
CY
CY
R30
+3.3V
+3.3V+3.3V
+3.3V+3.3V+3.3V+3.3V
+3.3V
+3.3V
+3.3V
+3.3V +3.3V +3.3V +3.3V
+3.3V
+3.3V
+3.3V +3.3V +3.3V
+3.3V
+3.3V
12
10
100P
C15
R36
1K
R19
220
C8
0.1
12.288MHz
0.01
C267
VIDEO3 HH H
VIDEO2
INPUT
VIDEO1
OUTPUT
MONITOR
L
LL
H
V-B
L
H
VIDEO1 REC V-A MUTE 510
213 4
12
3
1
22P
FREQ1
FREQ0 H
H12
11
32kHz
L
L
44.1kHz
H
L
48kHz
L
H
RESERVED
AUDIO
901
01
CANNEL
STATUS BITO
DOLBY DIGITAL/MPEG
10 DOLBY DIGITAL 1 0
EXSIT NON
DATA STREAM INPUT
100
R48
100
R47
5V
+5V
+5V +5V
+5V
5V
5V
+5V
+5V
+5V
+5V +5V
15V
+15V
+5V
5V
+5V 5V
5V
15V
+15V
15V
+15V
15V
+15V
+5V
+5V
+15V
+5V +5V
+5V+5V
+5V
+B
+12V
+12V
+12V
+12V
+15V
+5V
+5V +5V
+5V
+12V
+5V
+B
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V +5V
+5V+5V+5V+5V+5V
+5V +5V
+5V
+5V
IC1
IC16IC17
IC18
IC19
(X08- ) (B/2)
IC12
IC13
IC14
IC3 IC15
IC2
(X08-296X-XX) (A/2)
CN1
VIDEO(C) SELECTOR VIDEO(Y) SELECTOR
J6
J5 WH1
D7 D11
D8 D12
D6
Q1 Q2
5V AVR
5V AVR
3.3V AVR
J1
A1
DOLBY DIGITAL(AC3)
DTS
INVERTER
VIDEO3
CD
VIDEO2
DIGITAL
DOLBY
/PCM IN
DATA SEL.
A/D,D/A
DIR
CONVERTER
PROTECT
VIDEO 1 OUT
VIDEO 1 IN
MONITOR OUT
VIDEO 2 IN
VIDEO 3 IN
S-VIDEO
5V AVR
-5V AVR
L,Rch
LS,RSch
C,SWch
A
YSS902
YSS912 DOLBY DIGITAL DTS
DOLBY DIGITAL
IC16,17 I/O TABLE
DIGITAL
CD
VIDEO 3
DIGITAL
DIGITAL VIDEO 2
DIGITAL
DIGITAL
DIGITAL
DIGITAL
2.5V
2.7V
0.6V
0.8V
4.6V
4.7N
0.8V
2.7V
2.5V
4.7V
0V
0V
0V
0V
1.5V
3.3V
2.4V
1.5V
2.4V
3.3V
2.3V
2.3V
4.8V 4.8V
2.1V
2.4V
4.6V
4.4V
0V
4.6V
0V
4.8V
4.6V
3.3V
0.9V0V
1.8V
3.3V
4.8V
0V
1.5V
3.3V
3.3V
4.8V
1.5V
2.3V
0V
2.4V
3.3V
0V
0V
4.6V
0V
4.6V
0V
0V
0V
4.5V
0V
2.4V
2.4V
0V
4.9V
2.4V
2.4V
2.4V
2.4V
2.4V
2.4V
2.4V
2.4V
0V
0V
0.9V
0V
1.5V
2.4V
1.8V
2.3V
4.8V
0V
0.9V
0V
4.8V
3.3V
7.8V
10.4V
0.2V
0.2V
4.5V
5.0V
-5.0V
5.0V
4.5V
-5.0V
10.2V
-11.1V
The DC voltage is an actual reading measured with a high impedance type voltmeter with a cassette loaded at play-
back mode. The measurement value may vary depending on the measuring instruments used or on the product.
Bias circuit DC voltage is measured while in the record mode.
DOLBY and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation. Noise reduction cir-
cuit made under license from Dolby Laboratories Licensing Corporation.