Kenwood C-V751 User manual

STEREO INTEGRATED AMPLIFIER/TUNER
C-V751
SERVICE MANUAL
© 1999-8/B51-5566-00 (K/K) 1992
70%
Caution : No connection of ground line if disassemble the unit.
Please connect the ground line on rear panel, PCBs, Chassis and some
others.
ON/STANDBY
PHONES INPUT TAPE 2
/ MONITOR
VOLUME CONTROL
DOWN UP
DIGITAL
REC
TIMER
MODE RDS
PTY
DISPLAY
CLOCK TA/NEWS
DTS
A.MEMO AUTO BAND
TUNING
PTY SELECT
LISTEN
MODE MULTI.CONTROL
LEVEL
OPEN/CLOSE
SET UP SOUND INPUTMODE
DIGITAL CIRCLE
SURROUND
TIMER
SET
ANTENNA AM
FM 75ΩGND
CONNECT
WITH
POWER AMPLIFIER
UNSWITCHED
SYSTEM
CONTROL
FRONT SURROUND CENTER
PRE OUT
SUB WOOFER
L
R
REC PLAY
REC PLAY
PLAY PLAY
PLAY
PLAY
DVD/
6CH.INPUT
MONITOR
OUT
REC PLAY REC
VIDEO 1 VIDEO 2
VIDEO
DIGITAL IN
FRONT SURROUND CENTER
SUB WOOFER
CD MD/TAPE1
TAPE 2/MON
CD
(OPTICAL 1) DVD (COAXAL)
DVD/6CH.INPUT
DIGITAL IN
Panel
(A60-1686-01)
Front glass
(B10-2351-14)
Phone jack
(E11-0280-05) Knob (K29-6665-02) Knob (K29-6666-12) Knob (K29-7591-02) Knob (K29-6665-02) Knob (K29-6660-04)
Knob
(K29-6665-02)
Metallic cabinet
(A01-3702-01) Lock terminal board (E70-0052-05) Phono jack
(E63-0094-05) Phono jack (E63-0199-05) Power cord bushing (J42-0083-05)
Rectangular receptacle
(E58-0018-05) Phono jack (E63-1084-05) Phono jack
(E63-0136-15) Phono jack(6P)x2
(E63-0139-15) Phono jack
(E63-1084-05) AC power cord *
(E30-)
AC outlet *
(E03-)
Phono jack
(E63-0093-05)
Optical receiving module
(W02-1181-05) Miniature phone jack (E11-0293-05)
* Refer to parts list on page 33.
Indicator
(B12-0311-04) Front glass (B10-2350-14)

Batteries (R06/AA) (6)
FM indoor antenna (1)
(T90-0841-05) AM loop antenna (1) (T90-0833-05)
Loop antenna stand (1) Remote control assy
GRC-700 (1)
(A70-1300-05)
Battery cover(A09-1139-08)
ENTER
V
O
L
U
M
E
UP
DOWN
CONFIRM
ON/STANDBYCONTRAST Backlight
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C-V751
2
CONTENTS / ACCESSORIES
DISASSEMBLY FOR REPAIR
CONTENTS / ACCESSORIES .................................. 2
DISASSEMBLY FOR REPAIR....................................2
CIRCUIT DESCRIPTION............................................3
ADJUSTMENT............................................................7
WIRING DIAGRAM.....................................................8
PC BOARD ................................................................ 9
SCHEMATIC DIAGRAM.......................................... 15
EXPLODED VIEW ....................................................32
PARTS LIST..............................................................33
PARTS DESCRIPTIONS..........................................39
SPECIFICATIONS ......................................Back cover
Contents
Accessories
1. Remove the 1 screw (1), Then pull the slider (2) till last
2. While raise the slider of left side, remove the slider from
the bosses (3,4)
1
34
4
4
4
4
4
2
x2 x2

C-V751
3
CIRCUIT DESCRIPTION
DESTIN-
ATION u-COM DESTINATION BAND RECEIVING
FREQUENCY
RANGE
CHANNEL
SPACE IF PLL TUNER SW
TSW4 TSW3 TSW2 TSW1
(22) (21) (20) (19)
E/X E3
RDS FM AM 87.5MHz~108.0MHz
531kHz~1602kHz 50kHz 9kHz +10.7MHz +450kHz 25kHz 9kHz 0101
TE4
LW
RDS
FM
MW
LW
87.5MHz~108.0MHz
531kHz~1602kHz
153kHz~279kHz
50kHz
9kHz
9kHz
+10.7MHz
+450kHz
+450kHz
25kHz
9kHz
9kHz 0110
FREQUENCY FREQUENCY
M.ch E/X T M.ch E/X T
1 FM 98.0MHz FM 98.0MHz 21 AM 531kHz LW 270kHz
2 FM 87.5MHz FM 87.5MHz 22 FM 87.5MHz LW 216kHz
3 FM 89.1MHz FM 89.1MHz 23 FM 87.5MHz LW 162kHz
4 FM 108.0MHz FM 108.0MHz 24 FM 87.5MHz FM 87.5MHz
5 FM 90.0MHz FM 90.0MHz 25 FM 87.5MHz FM 87.5MHz
6 FM 87.5MHz FM 87.5MHz 26 FM 87.5MHz LW 279kHz
7 FM 87.5MHz FM 87.5MHz 27 FM 87.5MHz LW 270kHz
8 FM 87.5MHz AM 1602kHz 28 FM 87.5MHz LW 216kHz
9 AM 1602kHz AM 1440kHz 29 FM 87.5MHz LW 162kHz
10 AM 999kHz AM 999kHz 30 FM 106.0MHz LW 153kHz
11 AM 630kHz LW 216kHz 31 FM 87.5MHz FM 87.5MHz
12 AM 1440kHz AM 630kHz 32 FM 87.5MHz FM 87.5MHz
13 FM 106.0MHz FM 106.0MHz 33 FM 87.5MHz FM 87.5MHz
14 AM 531kHz AM 531kHz 34 FM 87.5MHz LW 279kHz
15 FM 87.5MHz FM 87.5MHz 35 FM 87.5MHz LW 270kHz
16 FM 98.0MHz FM 98.0MHz 36 FM 87.5MHz LW 216kHz
17 FM 98.5MHz FM 98.5MHz 37 FM 87.5MHz LW 162kHz
18 FM 87.5MHz AM 531kHz 38 FM 87.5MHz FM 108.0MHz
19 AM 990kHz AM 990kHz 39 FM 108.0MHz AM 999kHz
20 FM 97.7MHz LW 279kHz 40 AM 999kHz LW 216kHz
1. Conditions according to the destination
TUNER destination table
2. Contents of tuner preset memory
• Sub-clock oscillation diagnosis function The oscillation
diagnosis(existence oscillation and measurement of peri-
od) of a sub-clock is performed before the test mode is
entered. If the diagnosis result is OK, the system is
entered the test mode.
If the diagnosis result is NG, the oscillation of the sub-
clock diagnosed again. If the result is OK, the system
enters the test mode. If the diagnosis result is continuous-
ly NG 5 times, the system stops with ERR1 and ERR2
displayed.
3-5 Tuner test mode
(When selector is set to TUNER.)
• P.CALL of preset channel.
• S level indication.
Set the TUNER ATT to ON/OFF and display the S level in
hexadecimal when the [PTY] key is pressed.
• Indication of FL for TA NEWS and TIMER.
3-6 AMP test mode
(When the selector is set to positions other then TUNER.)
During the test mode, it can be operated in a special
manner that is different from an ordinary operation by
using the keys on the remote control or the main body,
specifically as shown in the following table.
KEYS FUNCTION or FL INDICATION REMARKS
AUTO One touch settings.
Volume value.
Volume value.
A.MEMO Sub mute ON/OFF operation
and FL indication.(except for
stereo mode)
TIMER MODE One touch settings.
KEY FL INDICATION
[TA/NEWS]
[DISPLAY]
KEYS OPERATION
[TIMER SET] Increments the P. CALL every time
this key is pressed.
[TIMER MODE] Decrements the P. CALL every time
this key is pressed.
KEY OPERATION
[DIGITAL REC] Selects the P.CALL steps cyclically.
10 20 30 40 01
3. Test mode
3-1 Entering the test mode
• Turn on the power while pressing the [OPEN/CLOSE] key.
• The test mode gets started while the power is turned on
after that,all the FLs will light up and the panel opens.
• Sub-clock oscillation diagnosis function is entered by
pressing the [DIGITAL REC MODE] key in the all FL light-
ing mode.
3-2 Canceling the test mode
The system is initialized and the test mode is canceled
when the AC power is turned off.
3-3 Initializing
The system is initialized when the power is turned on
while pressing the [ON STANDBY] key.
3-4 Contents of the test mode
• Key operation in all FL lighting mode.
• All FL lighting off mode.
KEYS OPERATION
All FL lighting off.
Normal indication.
KEYS OPERATION
[AUTO] Green LED lights on.
[A.MEMO] Red LED lights on.
• Selection of P. CALL steps.

C-V751
4
CIRCUIT DESCRIPTION
Pin No. Pin Name I/O Description ACTIVE
HL
1 AMUTE O Audio muting control. Mute:ON Mute:OFF
2 POWER O Power ON/OFF relay control. Power:ON Power:OFF
3 POWER O Power amplifier relay control. Power:ON Power:OFF
4 F RLY O Front speaker relay control. Relay:ON Relay:OFF
5 C RLY O Relay control of center,surround and SW woofer. Relay:ON Relay:OFF
6 S RLY O Rear speaker relay control. Mute:ON Mute:OFF
7 +3dB O +3dB attenuation control for super woofer. ATT:ON ATT:OFF
8 20dB O +20dB attenuation control for volume control. 20dB gain
9 PROTECTION I Detection terminal of protection signal. PRT:ON
10 S DATA I/O Serial communication data signal.
11 S BUSY I/O Serial communication busy signal.
12 T MUTE O Muting control of audio signal for tuner. Mute:ON Mute:OFF
13 PLL CLK O Clock output of PLL IC for tuner.
14 PLL DATA O Data output of PLL IC for tuner.
15 PLL CE O Chip enable of PLL IC for tuner.
16 PLL DO I Data input from PLL IC.
17 SD I Syntony signal input of tuner.
18 STEREO I Stereo signal input.
19~22 T SW1~4 I Discrimination of the tuner destination.
23 M OPEN O Control terminal of motor driver.(Motor CW îDoor open)
24 M CLOSE O Control terminal of motor driver.(Motor CCW îDoor close)
25 OPEN SW I Detection port of door open/close switch. Open
26 CLOSE SW I Detection port of door open/close switch. Close
27 DIG. H O Port for digital input.
28 RWR I Reading of interactive remote control data.
H:End of reading data.
29 ENB I Permission of transmission . Permission
30 REQ O Request of transmission. No Request
31~38 R DATA1~8 O Data output to remote control microprocessor.
39 CE I Chip enable.
40 RST I Reset signal input.
41 VSS - Ground.
42 XTAL - 16MHz main oscillator.
43 EXTAL I 16MHz main oscillator.
44 SEL STB2 O Unused.
45 SEL STB1 O Strobe output to selector IC.
46 SELCLK O Clock output to selector IC.
47 SEL DT O Data output to selector IC.
48~50 VIDEO1~3 O Control port for video selector.
51 DSP RST2 O Reset signal output to DSP.
52 AVSS - Ground.
53 AVREF - Connected to VCC.
54 AVDD - Power supply(+5.0V).
55 VOL CLK O Clock output to electric volume(IC28).
56 VOL DATA O Data output to electric volume(IC28).
57 VOL LATCH O Latch output to electric volume(IC28).
58 CODEC RST O Reset port to A/D,D/A converter.
59 - - Unused.
60 RDS SLEVEL I Signal level input from RDS decoder.
61 DOOR KEY I Detection port of door key(S16) .
62 POW KEY I Detection port of power key(S3).
63 OESL O Switching the output enable.
64 AUDIO I Detection port of audio.
4. Microprocessor: CXP740010-107Q(X08,IC16)
4-1 Port description of microprocessor

5
C-V751
CIRCUIT DESCRIPTION
KS1(15pin) KS2(16pin) KS3(17pin) KS4(18pin) KS5(19pin) KS6(20pin) KS7(21pin)
TAPE2
MONITOR INPUT AUTO - *TA/NEWS/
INFO. SRS -
-INPUT BAND LEVEL *PTY DTS -
TIMER
MODE TIMER SET AUTO MEMORY LEVEL *DISPLAY DOLBY.D INPUT
MODE
TUNING TUNING D.REC MODE SET UP TIMER
CLOCK SOUND
Pin No. Pin Name I/O Description ACTIVE
HL
65 ERR I Detection port of error. ERROR
66 AC3 I Detection port of dolby digital.
67 FREQ1 I Detection port 1 of sampling frequency.
68 FREQ0 I Detection port 0 of sampling frequency.
69 CODEC DIN I Data input.
70 ABQOT2 I/O ABOOT output/INTREQ input port.
71 ABQOT SEL1 O Switching the power supply of ABOOT/INTREQ(IC6).
72 ABQOT SEL2 O Switching the power supply of ABOOT/INTREQ(IC5).
73 DSP CS O CS output to IC33.
74 ADD1 O External ROM(IC2) address1.
75 CODEC CS O CS output to IC15.
76 DSP RST1 O Reset output to DSP(IC6).
77 RDS DATA I Data input from RDS decoder.
78 RDS CLK I Clock input from RDS decoder.
79 DSP D1 I Data input from IC15.
80 DSP DO O Data output to IC6.
81 DSP/CO CLK O Clock output to IC15 and IC6.
82 ABOOT1 I/O ABOOT output/INTREQ input port.
83 HP. DETECT I Detection port of headphones. H/P ON
84 HP. MUTE O Muting control of audio signal for headphones. Mute OFF Mute ON
85 REMOCON I Input port of remote control signal.
86 TEX I Sub clock(32.768kHz) input.
87 TX I Sub clock(32.768kHz) input.
88 VSS - Ground.
89 VDD - Power supply(+5.0V).
90 NC - Unused.
91 ADD2 O External ROM(IC2) address2.
92 ADD3 O External ROM(IC2) address3.
93 LED R O Standby LED (red) control.
94 LED G O Standby LED (green) control.
95 ENC CCW I Pulse input from volume encoder.
96 ENC CW I Pulse input from volume encoder.
97 FL DI O Data output to FL driver.
98 FL DO I Data input from FL driver.
99 FL CLK O Clock output to FL driver.
100 FL STB O Strobe output to FL driver.
4-2 Key matrix
The numbers shown in ( ) are port number of FL driver(X14,IC1).
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6
C-V751
CIRCUIT DESCRIPTION
INPUT S1 L/R
VIDEO1
REC
S2 L/R
VIDEO2
REC
S3 L/R
MD
TAPE1
S4 L/R
INPUT
-6dB
S5 L/R
INPUT
0dB
S6 L/R
INPUT
-3dB
S7 L/R
TAPE2
ON
S8 L/R
TAPE2
OFF
TUNER
CD
MD/TAPE1 X
DVD/DVD6ch
VIDEO1 X
VIDEO2 X
INPUT LEVEL
0dB XX
INPUT LEVEL
-3dB XX
INPUT LEVEL
-6dB XX
TAPE2/MONI
ON X
TAPE2/MONI
OFF X
INPUT S1
L R S2
L R S3 L R S4 L R S5 L R S6 L R S7 L R S8 L R
TUNER XXXXXXXX X X X
CD XXX XXX X X X X
MD/TAPE1 X XXXX XX X X X
DVD/DVD6ch XXXXXXXX X XX
VIDEO1 XXXXXX XXXX
VIDEO2 X X XX XX X X X X
REC MODE XXXXXXXX X X X
Pin No. Pin Name I/O Description
1~4 SW1~SW4 I Unused.
5 FIP DOUT O Data output to FL driver.
6 FIP DIN I Data input from FL driver.
7 NC - Unused.
8 FIP CLK I Clock input from FL driver.
9 FIP STB I Strobe input from FL driver.
10~13 KEY1~KEY4 I Key return 1~4.
14 VDD - Power supply(+5V).
15 KS1/P17 O Key scan 1 and FL segment17.
16 KS2/P16 O Key scan 2 and FL segment16.
17 KS3/P15 O Key scan 3 and FL segment15.
18 KS4/P14 O Key scan 4 and FL segment14.
19 KS5/P13 O Key scan 5 and FL segment13.
20 KS6/P12 O Key scan 6 and FL segment12.
21 KS7/P11 O Key scan 7 and FL segment11.
22~31 P10~P1 O FL segment10 to1.
32 G11 O FL grid output 11.
33 VDD - Power supply(+5V).
34 VEE - Power supply(-30V).
35~44 G10~G1 O FL grid output10 to 1.
45 VDD - Power supply(+5V).
46 NC - Unused.
47 LED4 O Control port of door LED.
48 LED 3 O Control port of SRS LED.
49 LED 2 O Control port of DTS LED.
50 LED 1 O Control port of dolby.D LED.
51 VSS - Ground.
52 OSC - Unused.
5. FL driver: UPD16311(X14,IC1)
5-1 Port description of FL driver
6. Switching controller IC
6-1 Control table of selector IC
6-1-1 Audio selector IC(X11,IC4)
6-1-2 Audio selector IC(X11,IC5)
INPUT S1
L/R S2 L/R S3 L/R S4 L/R S5 L/R S6 L/R S7
L R
DVD/DVD6ch XXX
ANALOG 2ch XXXX
DIGITAL X X X
SW OUT ON
SW OUT OFF
6-1-3 Audio selector IC(X08,IC25)
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?&@@@@@@@0Y?e

7
C-V751
ADJUSTMENT
No. ITEM INPUT
SETTING OUTPUT SETTING TUNER/AMP SETTING ALIGNMENT POINTS ALIGN FOR FIG.
SELECTOR : FM
1DISCRIMINATOR
DISTORTION
(A)
98.0MHz MONO
1kHz, ±40kHz dev
60dBu (ANT INPUT)
Connect a DC
voltmeter to CN2
on tuner
PCB. MONO
98.0MHz
L31 (T)
L4(E,X) 0V
(a)
TUNED LEVEL
(E,X type only)
(C)
98.0MHz MONO
1kHz, ±40kHz dev
20dBu ANT INPUT
MONO
98.0MHz VR1
Adjust VR1
and stop at
the point
where FL
(TUNED)
goes ON.
(a)
(B)
-
L32 (T)
L5(E,X) Minimum distrotion
3
2
DISTORTION
(STEREO)
(C)
98.0MHz STEREO
1kHz, ±40kHz dev
pilot: ±6kHz dev
60dBu (ANT INPUT)
(B) AUTO
(98.0MHz) IFT (front end) Mininum
distrotion (a)
ANTENNA AM
FM 75ΩGND
CONNECT
WITH
POWER AMPLIFIER
UNSWITCHED
SYSTEM
CONTROL
FRONT SURROUND CENTER
PRE OUT
SUB WOOFER
L
R
REC PLAY
REC PLAY
PLAY PLAY
PLAY
PLAY
DVD/
6CH.INPUT
MONITOR
OUT
REC PLAY REC
VIDEO 1 VIDEO 2
VIDEO
DIGITAL IN
FRONT SURROUND CENTER
SUB WOOFER
CD MD/TAPE1
TAPE 2/MON
CD
(OPTICAL 1) DVD (COAXAL)
DVD/6CH.INPUT
DIGITAL IN
Oscilloscope Distortion meter
AC voltmeter
Dummy antenna (B)
(A)
(C)
(D)
AG
AG
FM SG
MPX
AG
FM SG
AM SG
(a)
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?@@?e
?@@?e
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?
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3@@5heV')Xg
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V4@?f?V'1?V'?e
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PLAY
J1
VIDEO1
J3
J2
J7
J7
J7
J4
Rch
Lch
J5
PRE OUT
1
2
Lch 1
Rch 2
Lch 5
Rch 6
Lch 1
Rch 2
Lch 3
Rch 4
Lch 5
Rch 6
Lch 1
Rch 2
LSch 3
RSch 4
Cch 5
SWch 6
Lch 1
Rch 2
3
4
5
6
Rch 4
3
Lch
Rch
Lch
4
3
REC
VIDEO1
PLAY
CD
PLAY
VIDEO2
MD/TAPE1
REC
MD/TAPE1
PLAY
TAPE2/MONITOR
DVD/6ch
INPUT
SWch
Cch
RSch
LSch
J6
CONNECT WITH
POWER AMPLIFIRE
CN1
E3 WH3 E4
HEADPHONES
J8
CN13
CN6CN5
CN12
E2 WH4 E1
J3
SYSTEM
J2
MONITOR
OUT
REC
VIDEO1
VIDEO1 IN
VIDEO2 IN
6ch IN
2
1
CONTROL
J4
J1
DVD
COAXIAL IN
A1
CN1 WH1 E1
WH2
CN1
CN2
CN3
CN1
CN2
CN4
CN4
WH2
E2
CN3
WH1
E1
J1
FM75
GND
AM ANT
FFC FFC
FFC FFC
REC
TAPE2/MONITOR
PLAY
OPTICAL
IN CD
TRANSFORMER
POWER
ABB.
T
X
E
ABB.
T
X
E
AUSTRALIA
EUROPE
U.K.
(X11-386X-XX)
(X08-299X-XX)
COUNTRY
DESTINATION
EUROPE
AUSTRALIA
U.K.
COUNTRY
DESTINATION
2-70
0-51
UNIT No.
2-70
0-51
0-71
UNIT No.
WW
2
1
1
4
1
4
P1
131
131127
127
9
1
9
1
15
15
1
1
15
15
1
1
125
125
127
127
1
5
10
1
1
10
66
1
1
F1
F5
F4
F3
(WHT)
WH1
WH2
(RED)
27
27 31
31
25
25 27
27
10
6
15
15
L07-2741- 5 (230V)
L07-2765- 5 (240V)
(X)
(T,E) : AC240V~ 50Hz
: AC230V~ 50Hz
USED (E) TYPE
USED (T) TYPE
USED (X) TYPE
(X11- ) (B/4)
(X11-386X-XX) (A/4)
(X08-299X-XX)
(X14-7022-70) (A/4)
(X05-5082-70) : (E,X) TYPE
(E,X) TYPE ONLY
(T) TYPE ONLY
MAIN VR
(X14- ) (B/4)
POWER SW (TACT)
(X14- ) (C/4)
FL
(X14- ) (D/4)
DOOR MECHA
(X11- ) (D/4)
(C/4)
(X11- )
C-V751
(X05-4680-51) : (T) TYPE
(D40-1555-02)
C-V751
8
WIRING DIAGRAM
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@?&@H?g?V')X?g 3@@5heV')Xg V40Yhe?V')K?f
V'@6X?e ?V'@)Xe
V'@1e ?V4@e
?O26X?e
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@@6Khe'6X?e ?I'@@?f?'6XV'1?e
V4@?f?V'1?V'?e
V'g
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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
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?J@5f ?7@Hf J@5?f 7(Y?f
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?W.Yh W&Y?fO.e
?W&@@@@@@@(Ye ?&@@@@@@@0Y?e

9
ACEBD
2
1
3
5
7
4
6
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD(Component side view)
Q2
Q1
D1
Q11 Q10
IC3
D7
D16
D13
D11
Q9
Q8
Q12
Q6
Q3
Q4 D8
Q14
Q15
Q7
R75
C84
C92
C93
C88
R89
C91
C89
C90
C35
C87
R32/W60
R29
C8
C58
C56
C57
C61
C60
C36
R43
R48
R66
R63
R62
R69
R67
R68
R18
R19
R34
R33
R20
C69
C63
W85
W59
W81
W86
C81
C5
R84
C6
C1
C2
C3
C82
C78
C75
C11
C12
C39
C25
C26
C24
C42
C41
C30
C22
C52
C45
C47
C50
C51
C18
C20
C43
C44
R55
R79
R56
R53
R54
R57
R51
R52
R49
R42
R80
R82
R11
R14
W56
R12
R15
R16
R17
R10
R4
R1
R5
R8
R9
R6 R7
R35
R39
R38
R23
R28
R25
R76
W83
R74
R78
R47
W84
R45
R46
W61
R27
C31
C76
C79
W51
R31
R36
W55
R83
C77
W62
R64
R65
R60
R59
R58
W52
R30
C80
R72C71
R73
C70
C34
C33
W82
C64
R37
W80
W54
R88
R85
C86
C85
R86
R87 C74
C40/R90
EB
EB
EB
EB
EB
EB
EB
EB
EB
EB
EB
EB
EB
18
16 9
E1
ANTENNA
CN1
D6
A1
IC1
D4
D3
D9
D5 IC2
CN2
J1
X05-5082-70 (J70-1353-01)
S1
ON
OFF
W5
W6
W7
W4
W19
W22
W21
W20
W14
W17
W10
W1
W3
AM RF
(G)
(W)
MPX.FIL.
FM
TUNED
FM DET MPX
AM STEREO
FM IF
PLL
VT
C17
W24
C28
C38
C29
C37
W9
W16
VR1
CF1
CF2
C10
W13
W23
CF3
L9
L2
R50
R44
R71
C49
C46
C72
C32
C14
C15 C67
C68
C55
W25
L3
C62
C66
C65
W2
W8
W11
W15
L1
C73
C7
R81
C27
C16
C19
C21
C23
L6
L7
L5
C48
R41
L4
R70
R40
R77
R61
C54
C59
C53
R2
X2
X1
151
1
15
16
30
1
2
1
11
12 22
8
1

10
FGIHJ
2
1
3
5
7
4
6
PC BOARD(Component side view)
10
1
10
6
1
TAPE2
INPUT
POWER
T.CLOCKT.MODE
T.SET D.REC SETUP
DISP PTY TA/NEWS/INFO
SOUND MODE
INPUT
61
GND
+5V
VOLUME CONTROL
DOOR
R1
R16
R12
R13R14
W36
W37
W35
W11
W7
W14
W4
W20
W31
W27
W26
W30
W28
W29
W25
W24
W5
W3
W12
W34
W10
W23
W22
W9
W2
W8 W6 W18 W21
W16
W19
125
AUTOA.MEMO
DOLBY.D SRS
BAND
MODE LEVEL CONT
TUNING
R11
C1
R15
W32
R32
R31
R34
R2
R35
R3
R5
R4
W38
W13
R25
R24
C2
R29
R28
R91
R21
R94
R93
R92
W41
C4
R52
R51
R69
C5
C3
R76
R70
R71
R72
R73
R74
C9
C12
R62
R61
R60
C11
R75
C8
C10
R59
C6
R54
R58
R56
C7
R68
R67
R66
R65
R57
R55
W39
R79
R80
R81
R85W40R53
C21
BE
52
BEEB
13
19
2
2
9
271226
dts
BE
EB
5
2
EB
224
W17
1
52
1314
26
27
39 40
51 1
Q1
Q6
CN4
WH2
WH1
D14
S8
S3
S4
S7
Q4 Q3
A1
D1
D4
S14
S13
S15
S1
S5
D2
D3
S12
S9
S11
S10
S21
S22
S18
S20
S19
S26S17
S23 S24
S2
D6
D5
D8
D10D9
D7
S25
Q2
E3
D22D13
S16
S27
D11
D12
D23
D16
D17
D18
D19
D20
D21
D15
Q5
WH3
S6
ED1
E2 CN1
E1
CN3
CN2
IC1
X14 C/4
X14-7022-70 A/4 (J70-1333-21) X14 D/4
X14 B/4
Refer to the schematic diagram for the value of resistors and capacitors.

KMOQSLNPRT
2
1
3
5
7
4
6
R83
R82
R106
R84
R79
R219
R220
R221
R81
R80
R85
R216
R96
R217
R100
R214
R86
R105
R101
R104
R50
R45
R43
R73
R72
R77
R78
R76 R75
R67 R68
R71
R70
R69
R162
R163 R164
R161
R165
R166
R155
R149 R150
R152
R159
R160
R156
R157
R158
R193 R180
R123
R124
R119
R120
R127 R128
R125
R126
R209
R208
R210
R129
R141
R142
R143
R147
R148
R144
R145 R146
R131
R132
R130
R137
R138
C95
C96
C100
C99
C97
C98
C70
C66
C79
C86
C85
C149
C131 C132
C150
C151 C152
C120 C126
C125
C17 C15
C14
C29
C13
C53 C54
C51
R18
C52
C64
C65
C60
C33
C31
C32
C42
R19
R20 R17
R14
R15
R16
R21
R26
R291
R28
R290
R10
R11
R12
R9
C199
C200
C193
R174
R168
R172
R188
R181
R185
R280
R279
R318
R263
R261
R319 R264
R262
R251
R250
R326
R253
R278
R275
R274
R273
R272
R281
R270
R62
R63
R269
R268
R257
R258
R259
R260
R265
R266
R307
R97
C214
R256
R255
R88
R90
R87
R89
R283
C24 C22
R27
R22
R31
R32
R33
R30
R23
C210
C207
C211
R303
R302
R321
R322
C311
R325
R330
C312
C313
R329
R331
R332
R333
R334
R335
R343
R236 R238
R336
C321
C320
R351
C323
C12
C23
R349
R352
R353
R354
R237
R245
C340
R317
L6
C16
C333
R342
C325
C327
R345 R344
C328
R347
C336
110
20 11
110
20 11
114
28 15
17
14 8
C41C47C19C20
C191
C187
L4
L3
L1 R1
C2
R51
R4
C7
C3
C46
C156
R170
R179
R175R176
R201
R199C219
C220
R205
C221
R203
C178
R195
R194
C173
R187
C175 C176 R183
R184
R182
R191
R192
C177 C160
R178
R177
C159
C158
C157
R171 R167
R169
C155
C174
C203
R202
R200C192
R196
C330 R204
R282 C4
R186 R173
EB
EB
EB
D16
Q7
D2
D20
D19
D18
D23
IC1
IC4
D12
D11
D13 D14
IC25
D27
Q11
D31
Q16
D17
D24
D25
D1
D21D22
IC26
1
1
1
6chCIN
GND
GND GND
GND GND
T.L
GND GND
GND FLchOUT GND FRchOUT SLchOUT SRchOUT
+15V
SWchOUT
-15V
CchOUT
D.RECLOUT
A.GND
-15V +15V
Lch
GND
Rch
STEREO
S.LEVEL
DET
PLL.DT
PLL.CLK
PLL.CE
T.MUTE
D.GND D.GND
D+7V D+7V
IR.GND
IR.6.2V
U.GND
U.+5.6V
H1
H2 -30V -30V
SEL.STB
F.OFF
C.POW
HP.MUTE
+6dB.CTL
P.POW.CLT
A.MUTE S.MUTE
20dB.CTL
PROTECT
F.RELAY C.RELAY
S1
S2
S3
S4
S5
S6
K4
K3
K2
GND
+5V
NC
K1
STB
-30V
DR
CS
CLK
DIN
DTS
AC3
DO
O1
O2
CL
GND
OP
CS
DTS
AC3
S4
GND
REMOT
S1
S2
S3
S5
S6
K1
K2
K3
K4
SEL.CK
1
3.64MHz
R.OUT
ENC.2
ENC.1
DOOR
CH.SPACE
PLL.DO
SEL.D
HP.D
32.768MHz
DOOR.K
POW.K
IR.6.2V
IR.GND
LED.G
LED.R
12.288MHz
16MHz
1
4.332MHz
T.R
D.RECROUT
1
H2
OE
OE1
OE2CS2
CS1 OESL
AB2
AB1
DI
CLK DI
CS
ERR
CODEC
CS
CE1
CE2
C183
C309
C308
C307
R235
C185
C317
R234
X4
X5
R58
L2
C101
C102
C93
C94
C105
C106
C103
C104
C83
C71
C74
C61
C62
C82
C77
C78 C163
C188
C164
C194
C195
C189
C190
C153 C154
C129 C130
C181
C182
C30
C11
C1
13
C39
C56
C34
R55
R197
R198
R112
R114
R29
C69
C166 C165
C171
C172
X2
C216
C215
C43 R57
C36
C21
C217
R304
C205
C204
MON.
OUT
/6chIN
DVD
V1
IN
RSch LSch
SWch
1
FRch
FLch
V1OUT
15
POWER SUPPLY
OSC.
CODEC
L.P.F.
VOL.
MI-COM
ROM
DSP
SELECTOR
VIDEO
2
27 1
25 1
15
127
RDS
C147
C148
C315
C316
P2
L9
C318
L8
R320
C319
R229
L7
X1 DO
226
S7
+5V
S7
H1
224
19
1
26
SD
1215
14
6chSWIN
6chSLIN 6chSRIN
GND GND
ADLIN ADRIN
GND
2
31
30
Cch
IN
V2
X3
GOIGIO
IOG
R109
R108
R107
R98
R102
R56
R54
R52
R53
R40
R44
R41
R42
R225
R224
R223
R222
R226
R227
R110
R153
R154
R122
R121
R207
R113
R115
R111
R118
R116
R117
R139
R140
R136
R133
R134
R135
C92
C91
C89
C90 C88
C75
C68
C67
C87
C80
C84
C128
C112 C111
C109
C121
C127
C122 C123
C25
C5
C6
C10
C8
C9
C63
C57
C35
C37
C38
C44 C45
C40
R2
R3
R5
R6 R7
R8
C170
C169
C179
C168
C167
C180
C162
C198
C197
C202
C201
C161
C119
C81
R240
R239
R241 R242
R301
R316
C218
R228
R271 R254
R65
R64
R267 R305
R306
C206
C209
C208
R286
R284
R285
C212
C213
R287
R289
R288
R299 R298
R297
R296
R295
R294 R293
R292
R308
R309
R243
R310
R311
R312
R313
R314
R315
R324
R323
C310
R233
C314
R244
R38
R25
W1
C196
R248
R300
R350
R36
C334
C337
C338 C339
L5
R24
R247
R232
R246
R338
R337
R339
R340
R341
C324
C335
C332
R348
17
18
14 13 7
3929
20
30 4
529
21
28 40
6
4
4
5
8
58
1
1
41
85
8
14
5
8
14
58
14
5
8
16 9
100
81
30
80 51
50
31
21
4222
4
85 58
41
4
5
1
8
GIO
1528
114
5
8
4
1
8
1
5 4
144
11
33
23
34
12 22
41
58 14
58
40
1
6
29 39
28
18
17 7
EB
BE
CE
EB
EB
BE
BE BEBE
EB
EB
EB
BE
EB
IC14
IC28
IC23
IC16
IC13
IC12
IC15
IC33
IC5
IC10IC11
IC32 IC31
J1
IC7
J2
IC8
IC18
IC17
J3
A1
J4
P1
RECVIDEO1
VIDEO
VIDEO2
PLAY PLAY DVD/
6CH.INPUT MONITOR CD
(OPTICAL) DVD
SYSTEM
CONTROL
(COAXIAL)
OUT
WH1
CN4
WH3
WH2
CN3
CN2
E1
E2
CN6
E3
CN5
X08-2992-70 (J70-1334-21)
IC29
IC24
Q8
Q9
Q10
Q2
Q1
Q3
Q5
Q4
D4
D6
D8 D7
IC27
IC22
IC20
IC3
Q6
D29
Q12
D26
IC30
Q15
Q14
Q13
D28
D30
D32
IC6
IC2
DIGITAL IN
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD(Component side view)
11 12

UVXZABADWYAAAC
2
1
3
5
7
4
6
C4
C25
C24
C7
C15
C3
C19
C8
C81
C82
R5
R18
C22
C6
C23
R1
R4
R19
R3
R2
R20
R84 R83
UCOM
DATA
CLK
STB
DATA
CLK
STB
+15
GND
+15
SR
SL
SW
SW
CEN
+B
+15
DATA
CLK
STB
DET
UGND
FR
DGND
Rch
+15
DGND
UGND
IR
H1
IRGND
UCOM+B
GND
+15
3dB
SR
FR
FL
GND
+15V -15V
CEN
GND
+15
DATA
CLK
STB
R82
R81
R103R104
R105
R101
R102
R106
R121
R122
R120
R118
R119
R123
R127
R128 R126
R124
R125
R107R108
R116
R117
R115
R113 R114
R174
R173
R302
R386
R385
R129
R216
R217
R218
R213
R214
R215
R205
R206
R201
R202
R210
R211
R212
R207
R208
R209
R219
W82
W84
R220
W86
R178
R145
R146
R147 R142
R143R144
R151
C392
C129
R148
C130
R158
R133 R134
R135
R130
R131R132 R139
R140
R141
R136
R137
R138
R175
R169
C127
R153R154
C128
R155R156
R177
R176
C228
C202
C230
C232
R168
C218
C212
C226
C210
C203
C204
C209
C225
C317
C219
C220
C211
C217
C10
C17
C28
C18
C26
C223C224
R149 R157
C115
C114 C113 C116 C118
C117
C110
C109 C108
C111
C107
C112
C104
C124 C123
C125C126
R150
R159
C101
C102
C103
C119
C122
C121
C120
R167
C394
C316
C206
C214
C216
C205
C163
C164
C201
C213
C231
C229
C227
C221
C222
C215
C131
W5
W7
W6
R25
W98
C391 C361 W50
W141
C132
W1
C412
W140
W144
W126
W22
W145
P2
W142
W134
R15
R31
W131
R55
C133
R413
R172
R17
R9 R8
R310
C13
W61
W58
R162
W72
W24
R16
W41
R165
W25
W125
W129
W81
W64
C134
W97
W114
W115
C135
W77
W102
W104
W90
C136
W116
W4
W117
W89
W112
W105
W70
W101
W100
W78
W69
W80
W71
C141
C137
W76
W109
C138
C318
C393
W83
W85
W88
R365
R320
C363
C364
R163 R164
R161
R166
R160
R322
C313
R321
C360
R366
R368
C359
R319
R367
C390
W26
W124
W99
C314
W122
W111
W103
W87
R301
W73
C310
C322
R316
R304
R306
C302
C304
R314
C306
R317
C303
R313
R311
R307
C305
R315
R312
R308
C311C312
R318
W37 W51
C389
C416
C321
W67
W66
W63
W62
R404
R309
C301
R409
R410
R408
C404
C407
C406
R412
C410
C415
R407
C403
C409
C405
R411
C408
W133
C411
R414
R403
W106
W120
W119
R406
W135
W136
R305
R303 W132
R51
W108
W128
W113
R398 R397
C11
C12
W18
W32
R14
W46 W43
W31
R396
R21
W33
R22
R395
R12
R11
R13
R7 R6
R10
W75
W8
W2
W39
W55
W53
W143
C140
C309
C319
C320
R54
C52
R53
R58
R56
R63
R62
R60
W79
W21
W17
C139
C53 R61
C51
R57
W15
R59 R67
R66
R64
C54
R71
R70
R68
C55
R69
W10
W19
W40
W48
R152
C362
C315
W91
W13
W12
W47
W38
W44
W36
W16
W27
C383
R355
C387
C381
R381
R393 R389
R383
C384
R391
C385
R356
C388
R392
C382C386
R394
R390
R384
C395
C396
C354
C358
C352
R352
R364
R360
R354
C353
R362
C356
C357
R361
C351
R351
C355
R363 R359
R353
C365
C366
R65
W49
W52
W54
W23
W11
W42
C27
W30
W20
W45
R405
R401
R402
C402
C401
W107
W56
W35
F1
T500mA L 250V
T500mA L 250V
F4
F5
117
S-MUTE
T2.5A L 250V
F3
TAPE2
MONITOR
T1.6A L 250V
3dB
UP
MUTE HP
MUTE
20dB
(RED)
(WHT)
RS LS
SW
CENTER
FR
FL
W92
R399
C14
W59
T1
C21
C16 C9
C20
W149
C5
C1
C2
K1
W29
C453
C451
R453
W60
C454
W146
R452
R451
C397
R400
W150
C461
W130
C462
C398
R416
C368
W139
R415
W57
C367
W9
C456
C457
C455
W14
C452 W123
W34
W127
R454
W110
R91
W28
W147
W148
BE EB
EB
BE
EBBEBE
1227
26
H2
EB BE
EB
EB BE
BE
-15
14
85
EB
EB
BE
EB
1231
30
-15
14 8
17
EB BE
BE E
B
85
14 14
85
BE
B
EEBEBEBEBEB
216
251436 2 143 2 14 3652 143652 14365
18 81
-15
114
1528
-15
28 15
141
Lch
EB
EB
58
41
-15
1
2
3
4
EB OGI
OGI OI G
1
2
9
8
1
2
3
4
1
2
98
12
WH4
WH4
CN2CN3
Q1
D4
D1
D5
D2
D7
D6
D3
D8
WH3
WH3
WH2(RED)
WH1(WHT)
J5
IC7
CN12
Q6
Q2
D12
Q36
Q26
E3
Q4 Q3Q7
J2 J3 J4
Q16
Q8
D10
D15
D16
D13
IC5
IC4
D20
IC6
Q5
IC11
Q25 Q30
Q22
Q23
IC8
Q24
Q29
Q21
Q35
Q34 Q33
Q11
Q12
Q13
Q14
Q15
Q31
Q32
IC10
Q28
Q27
IC9
D19
D18
J6
J7
D33
D14
D11
CN13
E1
D21
CN1
IC2
WH1
WH2
E2
P1
J8
IC12
D9
CN7 CN6
CN9CN8
CN10 CN11
Q37
IC3
IC1
E4
D27
D28D25
J1
D31
D32
POWER
SUPPLY
LINEER
BUFFER REC OUT BUFFER
AMP
HP AMP
POWER
SUPPLY
X11
B/5
X11 C/5 X11 D/5
X11-3862-70 A/5 (J70-1323-11)
REC VIDEO2
PLAY PLAY REC
VIDEO1
PLAY PLAY
DVD/6ch.INPUT
PREOUT
M-A300
CD FRONT SURROUND CENTER
SUB
WOOFER
MD/TAPE1 TAPE2/MON
FRONT CENTER
SUB
WOOFER
SURROUND REC PLAY
PHONES
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD(Component side view)
13 14

GND
FM 75
J1
Q1
D1 FM TUNED
PLL
D4
Q14
CN2
CN1
Q2
D3
D8
D9
Q10
Q11
Q12
D5 D13
AM ANT
WH2
X08-
3/5
D11
: 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
IC1 :
IC2 : LC72131
Q1,6,7 : 2SC4177(L5,L6) or
Q2,12,14 : 2SA1611(M5,M6) or
Q10,11 : 2SD1757K
D1 : DA204U or
D3 : RD8.2ES(B2) or
D8,11,13 : MA111
RD5.1ES(B2) orD4 :
RD3.3ES(B2) orD9 :
RD2.7ES(B2) orD5 :
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
2SC4116(Y,GR)
2SA1586(Y,GR)
1SS302
LA1837
Q6 Q7
270
R44
100
0.01
C3 10
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 C26
10u50
C23
+
4.7u25
C27
C25
VR1
10K
4.3K 4.3K
2.2u50
C29
+
2.2u50
C28
+
C31
C79
C30 C80
10u50
C38
+
10u50
C37
+
0.047
C12 22
R16
R1433K
R15
10u50
C14
+
R17 3.6K
C45 +
C15
1u50
3.9K
3K
R18
0.47u50
C16
+
R19
C17
1u50
+
8.2K
L4
1
C81
L3
0.047
C11
47u16
C10
+
21
15K
47P
C76
C39
6P
21
C
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
C42 22P
1.2K
R59
R58
12K
R49 10K
R46 3.3K
R47 3.3K
R45 3.3K
R48 1K470P
C44
47u16
C48
+
10u50
C46
+
1000P
+
0.022
2.2K1K
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
2
1
4
3
E1
C1
3300P
C18
L5
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
DET
S-LEVEL
SD
STEREO
Rch
GND
Lch
+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
C82 0.01
C7 47u16
+
150
R81
1W
4.7u50
C32
+
820
8.2K
R75
1K
1.8K
R76R78
R77
47K
R74
R84 3.3K
1K
R72R73
C78
2.2u50
R85
33K
33K
R86 R87
33K
3300P
C85
3300P
C84
56K
R88
3300P
C88
33K R89
R20
C91
R79 3.3K
R33
R34 1K
W60
VREF T.METER
B I/F
+B
+B
+B
+B
+B
+15V
15V
+15V
+B
+B
+B
+B
+B
+15V
R8
22
100
R27 R28
C24
3.9K3.9K
0.01827K
1K
R83
27P C43
C41
22P
L9
10uH
2P
C40
C2
0.01
R2
220
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
1K
R38
R80
22K
330P
180P
0.022 0.022
4700P 4700P
22P
10K
R39
1K
R40 1K
R36
3.9K
R37
100
R35
8200P
C70
8200P
C71
C49R53
R23
15
14
14
15
1
+B
+B
+B+B
+15V
+B
+B+B +B
+B
B
+B
L7 L6
470P
C86
IC2
IC1
TUNER UNIT (X05-5082-70) : (E,X)TYPE
A
C-V751 (1/5)
A1 (W02-2584-05)
1.8V 6.2V
10.2V
6.8V
1.3V
1.1V
(0V)
6.9V
:3.8V
FM98MHz
(0V)
10.8V
(11.2V)
10.2V
8.0V
10.9V
2.6V
2.6V
0V
0V
0V
1.0V
5.0V
(0V)
6.9V
7.0V
1.6V
1.0V (0V)
2.5V (2.5V)
0V
(11.2V)
0V
14.4V
-15.1V OFF: 4.7V ON: 0.4V
MUTE
MUTE
ON: 0.7V
OFF: -2.2V
3.6V
3.6V
3.6V
0V
8.0V
8.0V
8.0V
1.3V
7.0V
0V
(4.7V) (0V)
4.3V 0V
(0.2V) (3.9V)
7.0V
(2.3V)
0V
4.3V
4.3V
4.3V
3.4V
3.4V
2.9V
(0.4V)
3.6V
(1.4V)
0V
(1.3V)
0V
(3.6V)
3.7V (3.6V) 3.7V (3.6V) 3.7V
11.3V
0V
0V
0V -2.2V
5.0V
-2.2V
3.4V
-2.2V
(1.8V)
1.9V
ACEGIBDFHJ
2
1
3
5
7
4
6
Y05-3942-70 C-V751
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 compo-
nents 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 measure-
ments shall be carried out
(exposed parts are acceptably
insulated from the supply circuit)
before the appliance is returned
to the customer.
The DC voltage is an actual reading measured with a high impedance type voltmeter as the AM/FM signal 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 mode.

KLNPRTMOQS
2
1
3
5
7
4
6
D81
PLL
D31
CN2
DISCRI
Q31
Q81
FM +B
VT
DISCRI
IC1 : LA1836
IC2 : LC72131 D1,2,32,61,62 : 1SS133 or
D31 : RD8.2ES(B2) or
D62
D61
HSS104
HZS8.2N(B2)
TR3
: 2SC2413
KV1440
: SVC220 or
: 2SK302
: 2SC2714
J2
FET1
TR2,3
TR1
D1-4
GND
AM ANT
FM 75
J1
OSC
D4
TR2
D2
FET1
RF AMP
FM FRONT END
TR1
BUFFER
OSC
D1
D3
: 2SC4081(R,S) or
2SC4116(Y,GR)
Q1,2,4,31-34,61,62
2SA1586(Y,GR)
: 2SA1576A(R,S) orQ3,64,81,103
: 2SD1757KQ101,102
D81 : RD5.1ES(B2) or
HZS5.1N(B2)
D101 : RD3.3ES(B2) or
HZS3.3N(B2)
D102 : RD2.7ES(B2) or
HZS2.7N(B2)
DET OUT:AMP
DETECTOR:BUFFER
IF
AMP
Q1
D1
Q2
D2 Q3
DISTORTION(ST)MIX Q4
Q61
Q65 Q62
Q63
Q64
Q65 : 2SK302(Y,GR)
Q63 : 2SC2878(B)
GND LINE
SIGNAL LINE
B LINE
B LINE
IC2
(X05-4680-51) : (T) TYPE
A1 (W02-2584-05)
7.7V
2.4V
3.0V
2.9V 3.4V
0V
(1.4V) 3.6V (0.4V)
1.3V
8.0V
11.0V
8.0V
8.0V 0V
ST: 0V
MONO
: 4.7V
3.6V
8.0V
3.6V 3.6V
0V
(1.3V)
(3.6V)
3.7V
(3.6V)
3.7V (3.6V) 3.7V (3.6V) 3.7V
1.9V
(1.8V)
11.0V
9.2V
9.1V
8.6V
0.7V
1.7V 1.1V
1.2V
1.9V 9.2V
FM98MHz
:3.8V
11.0V
2.6V 0V 5.2V
1.0V
0V
0V
10.9V
0V
(2.5V)
2.5V
(0V)
2.6V 5.0V
7.0V
0V
0V
0V
0V
1.6V
0V
(11.2V)
6.9V
(0V)
MW: 0V
LM: 0.7V
5.1V
3.6V
+11V
+11V
10.3V
R80 1K
R81 1K
R83 1K
R82 1K
2
4
5
3
470P
R84 10K
27P C82 22P
C81
+
10u16
C87
0.01
C93
7.2MHz
X81
560
R94
1/4W
COUNTER
UNIVERSAL
X OUT
DO CL CE X IN DI BO1
CHARGE PUMP
PHASE DETECTOR
PROGRAMMABLE
1/16, 1/17 4bit
SWALLOW COUNTER
12bit
DIVIDER
DATA SHIFT REGISTER LATCH
DIVIDER
REFERENCE
2
1
VSS
PD
AIN
VDD
NC
AM IN
FM IN
IF IN
NC
UNLOCK
DETECTOR
AOUT
22 21 20 19 18 17 16 15 14 13 12
1
2 3
4
5 6 8 7
10
9
11
456kHz
7
BUFF
3 2
1
FM
IF FM
DET
4
L33
5 6
REG GND FM
DRIVE
TUNING
AM
BUFF
LEVEL
DET S-CURVE
30
OSC
AM
ALC
29
28
AM/
IF
FM
S METER
DET
IF
COMP
AM
AGC
AM
RF.AGC
MIX
AM AM
27 25 26
PHASE DET
8
9
10
11
SW
AM/
FM
VCC
DECODER
UNTIBIRDIE
VCO
FF
STEREO
DRIVE
24
23 22
21
FF
X31
C36 0.047
10u16
C35
++
10u16
C33
C34 0.01
C32
+
C31
47u16
0.01
C37
33K
R59
2.7K
22P C45
R37
C44
0.047
+
0.47u50
C43
100u10
C46
+
R38 33K
100P
C70 C47
1u50
C49
+
R36
21
10uH
L63
2P
C68
2K
R40
C92
R85
1K
C84
1000P
R86
1K
R88 1K
1K
C86
1000P
C85
100P
C89
47u16
+
1K
R87
R91
C90
2.2u50
+
C91
0.022
100
1/4W
R93
1.2K
12K
R92
C96
+
47u16
C1
R1
220
1/4W
R2
10K
R69
220
R89R90
5.6K
C48
L61 1uH
C2
1u50
+
L31
L32
BAND FREQ. VT
FM LF
HF 1.6V
7.8V
AM 1.3V
LF
HF 5.0V
VT VOLTAGE
0.01
C2B I/F
100P
R39 82K
4700P
R35
39K
2.4K
2.2K
L81
1uH
L62
R67
100K
0.01
C61
150K-
GND
4
GND3
NC2
1
ANT1
220
R16
L7
C17
2-6P
47P
C16
3.9K
R12
1-3P
C22
470-
R17
10P
C21
8P
C19
560K
R18
0-100
33K
R3
100K
10P
C6
C7 5-10P0.1
C14
L3
L4
R2
R4 5P
1000P
C10
680K-1.5M
R5
100
R8
L6
680
R9
C15
27P
C12 2P
C11
C9
100
R19
OSC
C23
100P 8
VCC
IF-OUT
0.1
6
IFT
0.1
C13
7
VT 5
R1
100K
3-7P
C5
27P
C3
L2
0-5P
C4
15P
C2
L1
27P
C1
R6 33K R7 33K
C8 0-6P
L5
1.5K
C20 27P
10K
R15 R14
10K
0-100
R11
C54
1000P
22P C67
R15
R3
C3
0.01
CF1
R4
47
R9
0.01
C6
R10
2.2K
100
R5
10K
R11
330
C7
0.01
680
R13
100
R12
3.3K
R14
C8
330
0.01
R16
100
330
R17
R21
CF2
C5
0.01 R8
680
R22
10
R18
390 680
R19
10
C9
0.01
0.01
C10
R7
220
W27
C64
0.033
LF: LOWEST FREQUENCY
HF: HIGHEST FREQUENCY
W76
R61
22K
W13
W56
1M
R70 2.2K
R68
W6
C63
9P
0.033
C62
1M
R62
R64
47K
R63
15K
R65
1.5K
R66
10K
W24
+7V +11V
+11V +11V +11V
+11V
+11V
+11V
+8V
+8V
+11V
+11V
+11V
6P
C66
+5V
DT
0.027
10
R20
1.8K
B
+B
The DC voltage is an actual reading measured with a high impedance type volt-
meter as the AM/FM signal generator is specified to the conditions 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

Y05-3942-70 C-V751
UWYVX
Q32
D32
AM/FM
SYSTEM
/MPX
ON:FM
OFF:AM
Rch
CN1
3/5
E1
X08-
Q34
Q33
Q102Q101
Q103
D101
Lch
D102
MUTE
MUTE
DRIVE
S METER BUFFER
BUFFER
DET-OUT
IC1
(X05-4680-51)
C-V751 (2/5)
B
7.7V 14.4V
7.0V
3.8V
3.4V 4.3V
4.3V
3.7V
-15.1V
7.0V
(0.2V)
0V
0V
(2.3V)
7.0V
(3.9V)
0V
(0.6V)
14.5V
8.1V
MUTE
ON: 0.7V
OFF: -2.2V
0V 0V 0V
-2.7V
4.9V
OFF :4.7V
ON :0.4V
MUTE
DET
12 13
14
15
MUTE
PILOT
FF
TRIG
SW
STEREO
18 20
19
17 16
R32 5.6K
10u10
C38
+
C30 0.047
R331u50
C40
+
0.47u50
C41
+
3K
C42
2.2u35
+
47K R49
R34
8.2K
R44
10u10
C52
R4310u10
L34
R41
2.2K
R42 2K
1500P
C50
150 1W
R31
+
+
C51
2.2u50
+
+
2.2u50
C57
8200P
R47
L35
R45
R46
C58
8200P
R48
L36
1K
1K
3.9K
3.9K
C55
C56
2.2K
C53
MONO1
GND10
2
3
4
5
6
4
2
3
5
T.MUTE
PLL-CE
PLL-DO
PLL-CLK
PLL-DATA
9
8
7
Lch
+15V
-15V
15
13
14
11
12
SD
DET-OUT
S-LEVEL
Rch
STEREO
100K
R52
0.1
C60
1K
R53
10K
R50
100
3.9K
R51
R57
100
C59
100P
R56
R55
8.2K
R103
R105
R101
820
1K
1K
R102
2.2K
W85
47K
R104
+11V
+8V +15V
+15V
+15V+15V +15V +15V
+15V
15V
0.027
5.6K
CAUTION: For continued safety, replace
safety critical components only with
manufacturer'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
measurements shall be carried out
(exposed parts are acceptably insulated
from the supply circuit) before the
appliance is returned to the customer.
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ZAA ACAB AD
2
1
3
5
7
4
6
J1
COAXAL IN
2nd DSP
A1
OPTICAL IN
CD
DVD
INPUT
DIGITAL
SELECTOR
CODE IC
DSP
PROGRAM
WH1
WH2
EXPANDER
ADDRESS PORT
DSP IC
D30 : UDZ5.6B
D19,20 : UDZ6.8B
D16,17 : U1BC44
D11,12,18,26-29,31,32
: MA111
D7,8,13,14 : DA204U
D6,24,25 : UDZ13B
D1,2,4,21-23 : UDZ5.1B
Q10 : UN5112
Q6 : 2SB1218A(Q,R)
Q5,7 : 2SD1819A(Q,R)
Q1-4,8,9,11-15 : UN5212
IC28 : M62446FP
IC26 : NJM2279M
IC25 : TC9162AF
IC24 : S-80740AL-A4
IC23 : uPD17215GT-737
IC17 : TA78DL05S
IC16 : CXP740010-107Q
IC15 : CS4226KQG
IC13,14,20,22,27 : NJM4565M
IC12 : SAA6579T/R
IC10,11,30-33 : TC7WT241FU
IC8 : TA8409S
IC7,18 : uPC29M33HF
IC6 : CS492604-CLR
IC5 : CS492505-CLR
IC3,29 : TC7WU04FU
IC2 : 27C04090JC1AHA
IC1,4 : TC74VHCT574AF
E1
CN1
X05-
1/5
X05-
CN1
2/5
C2
47P
R1
75
AUDATA2
DC
AGND
AVDD
RESET
DD
CLKSEL
FILT2
FILT1
LRCKN2
CLKIN
31 30 29 34 32 33 36 37 35 38 39
SCLKN2
LRCKN1
SDATAN2
DGND
SCLKN1
DVDD
AUDATA1
LRCK
AUDATA0
MCLK
SCLK
DVDD
SCDOUT
SDATAN1
EMCE/EXTMEM
ABOOT/INTREQ
CS
DATA0 DATA1 DATA2 DATA3 DVDD DGND
EMOE
DGND
XMT958
WR/DS
DATA5 DATA4 DATA7 DATA6
SCDIN
SCCLK
15 17 16 13
14
12
11
10
9
8 7
M1
M2 M3
M4
M5 M6 M7 M8 R315 100
R314 100 R313 100 R312 100 R311 100 R309 100 R310 100 R308 100
0.1
C3
47u10
C1
+
4 3 2 1
5 6 7 8
R3
47K
R4 4.7K
C7 22P
2.2K
R5
10uH
L2
C9
0.1
C6
0.1
R7
2.2K
1K
R8
22P
C8
0.1
C10
0.1
C4 R2
4.7K
22P
C5
R282
100
GND
VDD
1
2
3
+5V
+5V
+5V+5V
+5V
L1
1K
R6
IC3
R222 10K
2
1
10K
R9
R283
10K
0.1
C206
3
R26 10K
R290
10K
R291 4.7K
C208
0.1
10K
R23
20 19 18 17 16 15 14 13 12 11
VCC
Q0
Q1
Q2 Q3
Q4
Q5 Q6
Q7
CK
1
2 3
4
5 6 7 8
9
10
OE D0 D1 D2 D3 D4 D5 D6 D7 GND
4 3 2 1 32 31 30
29
28
27
26
25
24
23
22
21
14
15 16 17 18
19
20
5
6
7
8
9
10
11
12
13
A12
A15
A16
VDDVCC
A18
A17
A14
A13
A8
A9
A11
OE
A10
CE
Q7
Q1 Q2 GND Q3 Q4 Q5 Q6
A7
A6
A5
A4
A3
A2
A1
A0
Q0
91
92
M17
M18
M19
M20
M21
M22
M23
M24
M8 M6 M7 M2 M3
M4
M5
6 2
1
5
4
3
9
8 7
10
15 19 20 18 17 16 14 13 12 11
M16M1 M15M2 M14M3 M13M4 M12M5 M11M6 M10M7 M9M8
M20
M24
M23
M22
M21
M19
M18
M17
OE D3 D2 D1 D0 D7 D6 D5 D4 GND
VCC
Q0
Q1
Q2 Q3
Q4
Q5
Q6 Q7
CK
0.01
C15
0.01
C17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CH SPACE
PLL.DO
PLL.CE
PLL.CLK
PLL.DT
TMUTE
-15V
+15V
Lch
GND
Rch
STEREO
SD
S.LEVEL
DET
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
42
43
R286 220 R285 220 R284 220
R12 10K
C11 2.2u50
+
C14 0.22
R226 220
+5V +5V
+5V
+5V
+5V
M13 M16
C339
1000P C338 1000P
C337
1000P
C209
0.1
0.1
C12
47u10
C318
+
C13
1000P
R11 10K R10 10K
L5
R38 220
3 5 2
5
IC1,4
R345 100
L7
R326 10K
R329 100
R331 100
R330 100
R332 100
R333 100
C328 100P
C330 100P
R334 100
R335
R344 100
R251 100
R250 100
C333 100P
60
2
15
16
13
12
14
22
18
17
25
26
23
+3V
+3V
+3V
+3V+3V
+3V
+3V
+3V
+3V
+3V
+3V
+3V +3V
+3V
+3V
+3V
+3V
+5V
15V
+15V
6
5
4
3
2
1
44
43
42
41
40
18
28
27
26
25
24
19
20
21
22
23
47u10
C217
+
0.1
C16
100P
WH3 C334
W1
+5V +5V
IC5
IC3
IC4
IC2
IC1
(X08-299X-XX)
A
B
4.8V
3.3V
4.9V
3.3V
3.3V
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ANAE AG AI AK AMAF AH AJ AL
DIR
A/D,D/A
CONVERTER
u-COM
D13
D11
D12
D14
D26
1st DSP
D8
D7
DECODER
RDS
BUFFUR
3 STATE
DIGITAL
AVR
3.3V
AVR
3.3V
3 STATE
BUFFER
33 32 31 30 29 28 27 26 25 24 23
22
21
20
19
18
17
16
15
14
13
12
1
2 3
4
5 6 7 8
9
10
11
34
35
36
37
38
39
40
41
42
43
44
SDIN2 SDIN3
CLKOUT
ERR
XTO
XTI
DEM
AOUT6
AOUT5 AOUT4
AOUT3
AOUT2
AOUT1
AGND1
VA+
AGND2
FILT
CMOUT
AINAUX
AIN1L
AIN1R
FREQ1
RX4 HOLD CCLK CDOUT CDIN CS SPI PDN AUDIO AC3 FREQ0
SDIN1
SDOUT2
SDOUT1
LRCK
SCLK
DGND2
VD+
DGND1
RX1
RX2
RX3
26
28
27
25
24
23
21
22
20
18
19
42
40
41
43
1
44
3
2
4
6
5
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
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
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
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
DSP DO
DSP DI
RDS CLK
RDS DATA
DSP RST1
CODEC CS
ADD1
DSP CS
ABOOT SELECT2
ABOOT SELECT1
ABOOT2
CODEC DIN
FREQ0
FREQ1
AC3
ERR
AUDIO
OESL
POW KEY
DOOR KEY
RDS SLEVEL
CODEC RST
VOL STB
VOL DATA
VOL CLK
AVDD
AVREF
AVSS
DSP RST2
VIDEO1
VIDEO2
VIDEO3
SEL DT
SEL CLK
SEL STB1
SEL STB2
EXTAL
XTAL
VSS
RST
CE
R DATA1
R DATA2
R DATA3
R DATA4
R DATA5
R DATA6
R DATA7
R DATA8
AMUTE POWER(P.POW CTL) POWER CTL(C.POW CTL) F RLY C RLY S RLY +3dB 20dB PROTECTION SDATA SBUSY TMUTE PLL CLK PLL DATA PLL CE PLL DO SD STEREO T SW1 T SW2 T SW3 T SW4 M OPEN M CLOSE OPEN SW CLOSE SW DIG.H PWR ENB REQ
DSP/CO CLK
ABOOT1
HP DETECT
HP MUTE
REMOCOM
TEX
TX
VSS
VDD
NC
ADD2
ADD3
LED R
LED G
ENC CCW
ENC CW
FL DI
FL DO
FL CLK
FL STB
R76 47K
R77 47K
R78 47K
47K
R67
R75
47K
R68 47K R69 47K R70 47K R72 47K R71 47K R73 47K
X4
16MHz
38
37
36
35
34
33
32
26 25
24
23
18 17 16 15
14
13 12
9
8 7
6
5
4
3 2
1
30
29
28
31
R80 47K R79 47K
R317 10K R263 10K R256 10K R255 33K
R88 10K
R89 10K R90 10K R87 10K
R318 10K R319 10K R261 10K R262 10K
R83 100K R84 100K
330
R82
R81
330
100K
R85R86
100K
11
10
R341 4.7K
R253 100K
R342 4.7K
47
46
45
48
50
49
C325
100P
100K
R254
55 56 57
37
DATA6M2
3
LRCKN2
R325 10K
R27 4.7K
17
M8 R299 100 DATA0
R22 C207
10K 0.1
R33 10K
13
14
16 15
R297 100
M6 M7 R298 100 M5 R296 100
DATA2 DATA1 DGND DATA3
10 12
11
R295 100
M4
M3 R294 100
DATA4 DVDD DATA5
CLKSEL 30
29
CLKIN
32 31
FILT1
FILT2
35 34 33
AGND
AVDD
36
DD
RESET
9
8 7
M1 R292 100
R293 100
SCCLK DATA7
R30
10K
39 38
AUDATA2
DC
0.1
C212
0.01
C200
0.01
C199
3K
R56 0.22
C40
C37 0.022
C38 0.01
C39 2.2u50
+
R58
0.1
C35
100u10
C43
+
4
35
6
2
17
8
VDD
GND
680P
C44
680P
C45
1 1/4W
GND
OUT IN
C25
C198
1000P R227
220
12P
C32
12P
C33
1M
R51
1000P
C196
1M
R225
R336 L8
R44 220
220
42
43
26
25
R41 100
R42 100
R248 100
R247 100
61
62
100
99
98
97
96
95
94
93 92
91
63
64
66 65 67 68
78 77
C57
0.01
16
15
14
13
12
11
10
9
RDCL
T57
XO
XI
VCC
EXTS
TM
1
2
3
4
5
6
7
8
QUL
RDDA
VREF
MPXI
OSEL
GND
ARI
OUT
10K
R271
C56 100u10
+
19
10
4
35
6
2
1
7 8
C210 0.01
R238 10
C211 0.01
1
2 3
4
8 7 6 5
R237 10
C311 0.01
1
2 3
4
8 7 6 5
R236 10
C214
560P
39P
C53
33P
C54
2.2K
R232
X1
4.332MHz
M1
M12
M11
M10
M9
M14
M15
4.7
R29
100u10
C204
+
0.1
C20
1W
+7V
+7V+7V
+7V
R316 100
R301 100
68 67
R300 100
66
R257 100K R258 100K
R64 10K R65 10K
R259 100K
R224
1M
0.01
C197
R45
0.1
C340 1000P
X3
12.288MHz
+5V
+5V
+5V
+5V
+5V
+5V
R268 10K 70
71
72
R269
26
25
R63 R62
R270
R260 100K R267 100K R266 100K R265 100K
76
51
78
100
R307
FSEL
FIL
R98
330K
C64
18P
C65
18P
+5V
+5V
R223 220
C21 2.2u50
+
+7V
+5V
64 R54 220
R53 2.2K
+5V
C29 0.01
R50 100K
C31 1000P
R52 220
C30 4.7u35
+
26
24
0.1
GND
C47
100P
C335
C205
100u10
OUT +7V IN +1W
R55
4.7
+7V
0.1
C41
+
100u10
C307
+7V
100u10
C308
+
0.1
C19
3
2
1
3
1
2
4
35 6
1
2
8
7
C310 0.01
77
47K
R96
2.2u50
C62
+
330P
C63
+5V
+5V
+5V +5V
10K
R272
83
84
R349 4.7K
85 X2
32.768KHz
R97
100
R273 100K
R306
R305
+5V
+5V
+5V
C213
0.1
10K
R25
65
+7V
R323 10
220
R43
82
SCDIN
EMOE
WR/DS
XMT958
DGND
DVDD
MCLK
AUDATA0
AUDATA1
SCLK
LRCK
CS
SCDOUT
ABOOT/INTREQ
EMCE/EXTMEM
SDATAN1
DVDD
DGND
SDATAN2
SCLKN1
LRCKN1
SCLKN2
2
1
1
2
3
+5V +5V
+5V
+5V
100K
R275
100K
R274
R246 220
R245 220
C320 0.01
C336 100P
C321 0.01
4.7K
R278
+5V +5V
0.1
C23
R28 10K
100u10
C34
+
C24 0.22
C22
1000P
76
R32 10K R31 10K 47u10
C319
+
51
R21 10K
R20 10K
R18 10K
R19 10K
R15 10K
R14 10K
R16 10K
R17 10K
L6
220
R36
+5V
73
63
73
63
74
74
1
2
+5V+5V+5V
6
3
6
2
2 5 2 5
IC30,31,33
+5V +5V+5V
+5V +5V +5V
+5V +5V +5V +5V +5V
+5V
R304 4.7
1/4W
60
2
+15V
15V
+15V+15V
15V15V
+15V
R343 3.3
25 26
23
+5V
+5V
+3V
+3V
+3V
+3V
+3V
+3V+3V
+3V
+3V
+3V+3V
+3V
+3V+3V
+3V +3V
+5V
+5V +5V
+5V
P2
100K
47K 47K
100K
R287 100
R288 100
R289 100
22K
R24 4.7K
3
1
2
R40 100
+5V
+5V +5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V +5V
+5V +5V +5V
IC15
IC16
IC6
IC29
IC7
IC12
IC30 IC33IC31
IC18
IC32
2.4V
5.0V
3.3V
6.9V
5.5V
3.3V 5.5V
4.8V
1.5V
2.2V
1.7V
0.5V
0V
4.9V
0V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.0V
4.9V
1.5V
2.4V
3.3V
3.3V
2.3V
0V
2.8V
2.2V
3.3V
4.7V
3.3V
3.3V
3.3V
4.8V
4.8V
1.1V
1.5V
2.4V
2.3V
0V
0V
0V
4.8V
4.7V
4.9V
3.0V
0V
0V
0V
0V
2.4V
2.4V
2.4V
2.4V
2.4V
0V
1.0V
0.9V
1.8V
0V
2.5V
2.4V
4.9V
4.8V
0.2V
4.4V
4.4V
4.4V
4.4V
4.7V
4.7V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
4.7V
4.7V
4.7V
4.8V
4.8V
4.9V
1.2V
1.7V
0V
4.6V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
4.7V
2.0V
1.8V
4.7V
4.7V
4.2V
4.6V
4.7V
4.7V
4.7V
1.9V
3.3V
0.1V
0V
4.8V
0V
0V
0V
0V
0V
2.3V
0V
0V
0V
0V
0V
0V
0V
0V
0V
1.5V
2.4V
4.8V
4.9V
4.7V
4.7V
4.7V
4.7V
3.7V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.7V
4.7V
0V
(X08-299X-XX)

AO AP AR AT AV AXAQ AS AU AW
IC13
(1/2)
IC13
(2/2)
SELECTOR
VIDEO
IC14
(2/2)
(1/2)
IC14
IC20
(2/2)
(1/2)
IC20
LR
(Sch)
OPE AMP
LSch
(Cch/SWch)
OPE AMP
RSch
Cch
SWch
Rch
Lch
(FRONT)
OPE AMP
(BOTTOM VIEW)
VOLUME
ELECTRIC
CN5
CN2 CN3
/TONE
D20D19
DIGITAL/ANALOG
SW
IC27
(1/2) Rch MIX AMP.
(2/2)
IC27 Lch MIX AMP.
D27
Q10
Q8
Q9
D31
D32
Q12Q2Q1
Q3 Q4
D21D22
D30
D17 D16
D18
Q7
RESET
RESET IC
Q11
D29
CN4
Q15 Q13 Q14
FRONT ch.
3dB DOWN
DRIVER TR.
(Q8,9)
DRIVER
MOTOR
D28
LED
DRIVER
BUFFER
3 STATE
IC22
(1/2)
IC22
(2/2)
D23
Q6
Q5
OPE AMP
(A/D)
D4 D6
D24
D2
5.0V AVR
PROTECTION
DETECTOR
D25
D1
E
DC
R201
75
75
R204
75
R205
10u16
C188
+
47P
C192
R200
3.3K
75
R202
C189 10u16
+
3.3K
R199
8
9
10
11
12
13
14
+5V
NC
MON
V MUTE
V1 IN
1/2
-5V
7
6
5
4
3
2
1
GND
GND
REC
V12 IN
V3
V3 IN
2
3
81
5
64
7
C159
120P
120P
C160
4.3K
R173
2700P
C157
2700P
C158
100P
C161100P
C162
R179
680 4.7u35
C163
+
680
R180 4.7u35
C164
+10u16
C190
+
49
50
10
11
48
L3
L4
C169 0.01
R171
2.2K
C167 100P
5600P
C155
100K
R169
100K
R170
5600P
C156
2.2K
R172 4.3K R174
12K
R178
100K
R176 100K
R175
12K
R177
R168
2.2K
2.2K
R167
C165
+
4.7u35
+
4.7u35
C166
4.7u35
R181 R185 R187 C181R193
68
+4.7K
C172
4.7u35 R182
100K
R184
C174
0.033
R192
43K
2200P
C178
C168 100P
C170 0.01
R186
4.7K R188
4.7K
C176
0.033
+
100K
R183
C173
5600P
2.2K
2700P
C175
2.2K 4.3K
+
4
3
21
100P
C180
100 4.7u35
R194 C182
+
R196
100P
C179
57
R195
680 4.7u35
100K 100K
120P
C171
R191
12K
C177
4.7u35
1
4.3K2.2K
C154
+
2.2K
4.7u35
R156
4.3K
R163
C151
330P
R160 R162
+
4
2
330P
R157
100K
4700P
C147
R158
100K
4700P
C148
C123 100P
C122 0.01
3300P
C149 C150
3300P
+
2.2K
C153
4.7u35
R155 R159 R161
4.3K
R164
2.2K
C152
4.3K 3
C201
100P
C194
C202
100P
+
57
8
6
4.7u35
C195
GND CLK
5
1
3
2
4
6
7
8
10
11
13
14 15
16
28
17
18
21
22
20
19
23
24
27
26
6ch
ANA
DIG
VSS
ST
VDD
DATA
25
R/L
DIG
RS/LS
SUB/NO
SW/C
DIG
6ch
22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
RBASS1
RBASS2
RBASS3
RTRE
CR2
CR1
CL2
CL1
AVSS
LOUT
ROUT COUT
LSOUT
RSOUT
SWOUT
AGND
DGND
LATCH
DATA
CLK
DVDD
21
20
19
18 17 16 15
14
13 12
11
10
9
8 7 6 5
4
3 2
1
LBASS1 LBASS2 LBASS3 LTRE BYPASSL BYPASSR LIN GNDL RIN GNDR CIN GNDC LSIN RSIN GNDS SWIN AVDD OUT1 OUT2 OUT3 OUT4
C90
0.33
0.015
C92
8200P
1K
R124
C88
3.3u50
C94
+
R123
1K
3.3u50
C93
C95
470P
C96
470P
C79
470P
C97
470P
C98
470P
2200P
C99
2200P
C100
10
R122
+
100
R119
100
R126
100
R128
100
R120
R127
100
100
R125
22u35
C82
+
C103
+
22u35
C101
22u35
+
22u35
C102
+
22u35
C104
+
2.2u50
C83
+
FRONT
C.RELAY
27 26
HP-MUTE
+3dB CTL
P.POW CTL
A-MUTE S-MUTE
D.GND
D.GND
D.+7V
D.+7V
IR GND
IR 6.2V
U.GND
UCOM+B
H2
-30V
-30V
HP-DET
SEL-DATA
SEL-CLK
SEL-STB1
FIRST OFF
C.POW CTL
H1
20dB CTL
PROTEC
2025 24 23 22 21 1719 18 16 15 14 71213 11 10 9 8 465 321
1 2 3 4 5 6 7 8 9 101112131415161718 19 20 21 2223242526 27
KEY4
KEY3 KEY2
KEY1
S7/KS7 S6/KS6 S5/KS5 S3/KS3 S2/KS2
S1/KS1
LED R
LED G
REMOTE
D.GND
+5V
S4/KS4
POW KEY
DOOR KEY
LED AC3
LED DTS
LED CS
LED DOOR
ENC1
ENC2
IR.6.2V
IR.GND
OUT
4
LED AC3
DIN
DOUT
LED DTS
123
KS4
12
+5V
8
-30V
LED DOOR
CLK
LED CS
657
NC
STB
KEY1
10911 16
KEY4
KEY3
GND
KEY2
1413 15
KS5 KS7 KS6
1817 19
KS1
KS3 KS2
20 21 22 23
H1
H2
24 25
C89
0.33
0.015
C91
C87
8200P10
R121
R279 100K
C85 100P
C86 100P
R280 100K
32
35 36
R115 1K R116 1K R117 1K
C80
220P
55 57 56
R113 4.7K R118 2.7K
C81 0.1
C312
100P
C313
100P
C314
100P
C332
C78 10u16
+
C77 10u16
+
270
R114
220
R112
1W
1W
46 47 45
12
9
20K 7
R144
10K
4
6
5100
R140
+
4.7u35
C130
+
100P
C132 100P
C131
R142
220K R141
220K
1
10K
R143
3
2
8100
R139 4.7u35
C12920K
10K
R149R150
10K
100P
C127C128
100P
R137 27K
C125 100P
C126 100P
R138 27K
R145 100KR146 100K
3 2 1
16 10
9
8
7
6 5
4
93
94
85
61
62
22
REMOTE
5 1 2 3
10
9
8
16
7
6
22
5
95 96
99
97 98
8
100
14 13 12 11 10 9 8 7 6 5 4 3 2 1
RST
GND
XTI
XTO
VDD
455
ENB
PWR
REO
15 16 17 18
19
20
21
22 23
24
25 26 27 28
D0 D1 D2 D3 D4 D5 D6 D7
38 37 35 36 32
31
33
34
X5 3.64MHz
0.01 0.01
29
28 30
6.2K
R147
6.2K
R148
15V
+15V+15V
+15V
8
16
16
8
18
19
47 46 45
3 2 5
4
9
R208 1K R209 1K
R210 100
R214 3.3K R217 3.3K
R219 100 R220 100 R221 100 R216 100
C323
0.01
R244
1K
83
22
390
R197
390
R198
1W
470u6.3
C183
+
470u6.3
C185
+
3K
R166
5
6
8
C120
1000P
46 47 45
15V
15V
15V
15V15V
15V
15V
15V
1W
OUT OUT
R165
3K
R153
R154
47K
R228
C84 0.01
C121
0.01
GND
IN OUT
+6.2V
+5V +5V
18
19
30V
R234 220 1/4W
R235 220R233 33K
C218
C66
3.3
R229
0.047F5.5
C69
+
0.01
C68
10K
R102
0.01
C70
1K
R101
1K
R100
1K
R105
100K
R104
10K
R106
1K
R107
1u50
C71
+
1/4W
1u50
C74
+
54321
OUT2
OUT1
CLOSE
GND
OPEN
4 6
5
9
8
L9
+B
+B
+B+B
30V
30V30V30V30V
5
9
6
8
4
+5V
+5V
+5V
+5V
+5V +5V
+5V
R241 560 R242 560 R243 560
1
2
3
4
8
7
6
54
36
5
1
2
8
7
10
R303
10
R302
23
21
24
5
6
8
4
7
13
2
R129
1K
1K
R130
100u10
C105
+R131
100
R132
100
100u10
C106
+
220K
R347
220K
R348
15V15V
15V15V
15V15V
15V15V
15V
+15V
+15V +15V+15V
+15V +15V
+15V
+15V +15V +15V +15V
+15V
+15V
+15V
Q8,9Q10
+15V
+B+B+5.6V
+5V +5V
C52
0.01
C51
0.01
9
8 7 6 5
4
3 2 1
IN1 VREF OUT1 VS GND NC OUT2 VCC IN2
26 25
+5V +5V
+5V
+6.2V
+6.2V +6.2V
+6.2V
100
R337
100
R338
R339
100
C60
0.01
23
24
100u10
C61
+
1/4W
R340
100
+6.2V +6.2V
+6.2V
+7V +7V
+B
+6.2V
+7V
+7V+7V+7V
Q13-15
1
84
6
7
8
+7V
+7V +7V
70
72
71
82
2
1
IC10,11
+7V
GND
OUT IN
4.7u35
C216
+
R136
1.3K
2
0.01
C109
22P
C111
22P
C112
100P
C75
3K
R133
3K
R134
C215 4.7u35
+
R135 1.3K
R239
1.5K
+15V
100
R109
20K
R108 20K
R324
4.7K
R111
47K
R110
10K
R207
R240
1.5K
100K
R152
0.01
C193
+7V 1 1W
R3201 1/4W
R57
10
100u
C309
+7V
+7V
100u10
C36
++
+5V
R281 10K
C67
0.01
6.3
C316
+
330u
+5V
15V
15V
15V
+15V+15V
24
26
15V15V
+5V
+7V
7V
7V
+7V+7V
Q6
8
R321 10K
R322 10K
+15V
15V
-RELAY
-TION
C324
100P
C332
100P
0.01
C119
+B
+5V+5V
+5V +5V
+B
+B
+B
+B +B
IC26
IC25
IC28
IC23
IC24
IC11 IC10
IC8
IC17
2.4V
14.8V
-15.1V
5.0V
5.0V
-5.1V
-6.9V
6.9V
5.0V
14.9V
5.6V
4.8V
6.6V
14.8V
-15.1V
14.8V
-15.1V
14.8V
-15.1V
4.8V
4.8V
4.8V 4.8V
4.8V
7.5V
6.9V
14.8V
-15.1V
6.9V
100u10
C315
+
(X08-299X-XX)

AY BA BCAZ BB
C-V751
Y05-3942-70
J3
VIDEO1 IN
2
1
6ch IN
VIDEO2 IN
OUT
MONITOR
VIDEO1
REC
J4
P1
SYSTEM
CONTROL
CN6
MOTOR
(MSN5F095A)
PH5P(WHT)
CN
LEVER SW
(SSS-23)
J2
GND LINE
SIGNAL LINE
B LINE
B LINE
C-V751 (X08-299X-XX)
-CN13
X11-A/4
4/5
-CN12
X11-A/4
4/5
-CN2
X14-D/4
5/5
-CN1
X14-A/4
5/5
47P
C203
C219
47P
R203
75
C221
47P
C220
47P
SBUSY
SDATA
C187 220P 220P
C191
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CENTER
-15V
SW
+15V
SR
GND
SL
GND
FR
GND
FL
GND
AD-Rch
A.GND
AD-Lch
GND
D.REC-L
GND
TUNNER Lch
GND
TUNNER Rch
GND
D.REC-R
GND
6ch IN-SR
GND
6ch IN-SL
GND
6ch IN-SW
GND
6ch IN-C
36
35
32
2
23
6
5
24
21
8
15V
+15V
(-)
1
(+)
2
4
3
5OFF
ON (CLOSE)
ON (OPEN)
OUT1
OUT2
OPEN
GND
CLOSE
B
+B
0-51
2-70
AUSTRALIA
EUROPE
U.K.
E
T
XYES YES
2.2K
22KNO
YES NO
UNIT No.
DESTINATION
COUNTRY ABB. R261,
318 R262, 319 R305 R306
100
4.7K
R335
NO
AUSTRALIA
EUROPE
U.K.
E
T
X
DESTINATION
COUNTRY ABB.
NO
YES100P
1000P
C332 C333
YES
NO
C334
NO
YESNO
YES
WH2WH1
NO
YES
W1
NO
YES
E1
(D40-1555-02)
C-V751 (3/5)
F
E
D
C
-14.9V
(X08-299X-XX)
2SK302 TC9162AF NJM2279M LA1836 LC72131
TA78DL05S NJM4565L S-80740AL-A4 NJU7312AL
NJU7313AL
CS4226KQG LA1837 TC7WU04FU
1
4
5
8
SAA6579T/R
TA78057S M62446FP
CAUTION: For continued safety, replace safety critical com-
ponents only with manufacturer'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 measurements shall be
carried out (exposed parts are acceptably insulated from the
supply circuit) before the appliance is returned to the cus-
tomer.
The DC voltage is an actual reading measured with a high
impedance type voltmeter with no signal input. The mea-
surement value may vary depending on the measuring
instruments used or on the product.

BD BE BGBF BH
2
1
3
5
7
4
6
1VSS
COM
VDD 28
25 27 26 24 23
DVD
TUNER
COM
DAC
13
14 GND
22 21 20 19
CK 15
16
220K
R103
1K
R101
220P
C101
1K
R102
R104
220K C102 220P
470
R107
220P C103
R106
220P
C104 R108
R105
470
220K220K
C110
R120
220K 220P
R118
470
C109
220P R119
470
R117
470
220K R115
220P C107
R114
220P C108
R116
R113
470
220K220K
1K
R122
C112 220P
R124
R121
C111
220P
R123
1K
220K 220K
R136
C118 220K 220P
R134
470
1K
C117 220P
R135
470
R133
220K
R130
C116 220P
R132
R129
C115 220P
R131
1K
220K 220K R127
C113 220K 220P
R128
R126
C114
220P
470
220K
R125
470
R148 C124
220P 220K
R146
470
R141
C123 220P
470
R147
R145
220K
R142
C122 220P
470
R144
C121
220P
470
R143
220K 220K R139
C119
220P 220K
470
R138
C120 220P
R140
220K
R137
470
DATAST
18 17
GND
COM
2 3
4
5 6 7 8
9
10 12
11
0.01
C231
150P
C232
220P
C163
1K
R175 1K
R173
1K
R174
26
C230
150P
0.01
C229
2
1VSS VDD 27
28
220P
R178
1K
4
3 6 5 8 7
10
9
-6dB
0dB
-3dB
COM
C164
11
12 13 ST
14 GND
DATA
COM
LINE
CK
25 23 24 21 22 19 20
R177
1K
R176
1K
17 18 16 15
V1
REC REC
MD/T1
TAPE2
PLAY
22K
R213
18K
R215
47K
R217
47K
R218
18K
R216
22K
R214
8
1
3
2+
10u50
C203
220P C205 220K
R201
+
10u50
C209
+
10u50
C210
4
76
5
R202
220K C206 220P
10u50
C204
+
8
3
21
R453 3.9K
C454 100P
+
4.7u50
C451
220P C452
100K
R451
8.2K
R452
100P
C453
+
10u50
C455 47
R454
6
57
4
11
12
13 14
100
+
10u50
C219
220K R209
100P
C221
100P
C223
+
10u50
C225 47
R219
R211
+
C220
10u50
100P
C222
220K
R210
100
R212
C224
100P
+
10u50
C226 R220
47
2
31
100
R207
R208
100
220K
6
R206
10u50
C212
+
5
7
10u50
C211
9
220P
C214
R205
220P C213 220K
+
10
8
100P
C216
C218
47u16
+
C215
+
100P
C217
47u16
15 16 13
14
13
16
15
12
13
27
25
31
21
24
25 27
23
21
2 3
4
5 8
21
25
27
24
2
3
4
5
4
3
4
11
10
9
5
4
2
8
4
27
2
10
12
+15V+15V
+15V
+15V+15V
+15V
+15V
+15V
+15V
+15V+15V
15V15V
15V
15V
15V
15V
15V
+15V
15V15V
15V 15V
150P
C202
0.01
C201
0.01
C228 C227
150P
0.01
C457
150P
C456
19
27
11
3
19
5
12
9
4
INPUT
SELECTOR
VIDEO1
1
2
J1
Lch
Rch
REC
VIDEO1
PLAY
Rch
Lch
4
3
PLAY
Rch 4
J2
Lch
CD
3
VIDEO2
PLAY
Rch
Lch
2
1
MD/TAPE1
REC
Rch
Lch
6
5
Rch 6
Lch 5
TAPE2/MONITOR
REC
Rch
Lch
4
3
Rch
MD/TAPE1
PLAY
2
Lch
J3
1
TAPE2/MONITOR
PLAY
SWch 6
DVD/6ch
INPUT
Cch 5
RSch
LSch
4
3
Rch 2
Lch
J4
1
L
R
R
SEL.
MODE/ATT
L
IC6(1/2)
IC6(2/2)
L
R
BUFFER
TAPE2
MONITOR
IC12(1/2)
SW AMP
IC12(2/2)
IC7(2/4) BUFFER
LINE L
R
IC7(4/4)IC7(3/4)
R
REC OUT
BUFFER
LIC7(1/4)
CN5
X08-
3/5
CN6
3/5
X08-
14.8V
-15.1V
IC4
IC5
(X11-386X-XX) (A/4)
E
F