Kenwood CV-500, CV-550, CV-700, CV-750, CV-770 Service manual
STEREO INTEGRATED AMPLIFIER/TUNER
ON/STANDBY
PHONES
INPUT TAPE 2
(MONITOR)
VOLUME CONTROL
DOWN
UP
AV CONTROL CERTER KC-2
CLOCK
TIMER
MODE
RDS
PTY
DISPLAY
TIMER
SET
S.DIRECT
ON/OFF
TA/NEWS/INFO.
SET
RT
VOICE
ACTIVATE
STEREO
DSP
A.MEMO
AUTO BAND TUNING
PTY SELECT
MODE
MULTI.CONTROL
LEVEL
OPEN/CLOSE
VOICE
ACTIVATE
DIGITAL
R D S
ANTENNA
AM
FM 75Ω
GND
CONNECT WITH
POWER AMPLIFIER
SYSTEM
CONTROL
CD
AUX TAPE 1/ MD
IN
IN REC
PLAY
IN IN
TAPE 2
(MONITOR)
AUDIO
FRONT
REC
REC
PLAY PLAY
VOICE
ACTIVATE
MONITOR
OUT
SURROUND
AUDIO
VIDEO
CENTER
INPUT
AC-3
SUBWOOFER
UNSWITCHED
LD
VCR
CABLE
/ SAT.
L
R
LD
DVD
DVD 6CH.INPUT
DIGITAL IN DIGITAL IN
C-V500/V550/V700/V750/V770
SERVICE MANUAL
© 1997-7 /B51-5330-00 (K/K) 3676
Indicator
(B12-0311-04)
Knob
(K29-6665-02)
Metallic cabinet
(A01-3432-01)
Phone jack
(E11-0282-05)
Lock terminal board
(E70-0052-05)
Front glass
(B10-2350-04)
Knob
(K29-6665-02)
Miniature phone jack *
(E11-)
Knob
(K29-6666-02)
Panel
(A29-0861-01)
Phono jack
(E63-0162-05)x2
Knob
(K29-6664-02)
Phono jack *
(E63-)
Front glass
(B10-2351-04)
Knob
(K29-6665-02)
Power cord bushing
(J42-0083-05)
Knob
(K29-6660-04)
Rectangular receptacle
(E58-0018-05)
Caution : No connection of ground line if disassemble the unit.
Please connect the ground line on rear panel, PCBs, Chassis and some others.
Miniature phone jack
(E11-0188-05)
Phono jack(6P)x3 *
(E63-)
Phono jack *
(E63-)
Phono jack
(E63-1008-05)
AC power cord *
(E30-)
Illustration is C-V750.
* Refer to parts list on page 40.
AC outlet *
(E03-)
C-V500/V550/V700/V750/V770
ON/STANDBY
MUTE
VOLUME
ENTER
Setup
DVD/6ch Input
Sound Speaker
C D
Sat.
Tape1
Cable
Reset
VCR1
VCR2
L D
T V
Confirm
Set Up
Return
Input
Source
Main Menu
TapeA
TapeB
Tape1
LD
Tuner
CD
VCR2
VCR1TVSat.Cable
CONTENTS / ACCESSORIES
Contents
CONTENTS / ACCESSORIES ....................................2
DISASSEMBLY FOR REPAIR.....................................3
ADJUSTMENT.............................................................4
PARTS DESCRIPTIONS.............................................5
PC BOARD ..................................................................6
SCHEMATIC DIAGRAM............................................13
EXPLODED VIEW .....................................................39
PARTS LIST...............................................................40
SPECIFICATIONS .......................................Back cover
How to reset the microcomputer
The microcomputer may malfunction (impossibility operation,erroneous display,etc.)when the power cord is unplugged and plugged
in again while the unit is in ON mode with the Key pressed or due
to other extern al causes.In this case,execute the procedure on the
right to reset the microcomputer and return the unit to the normal
condition
➀ Unplug the power cord form the wall outlet.
➁ While pressing and holding the POWER or
(ON/STANDBY)key,plug the AC cord into the wall outlet again
•Resetting the microcomputer clears the memory you entered and
returns in to the initial condition when the unit left the factory.
Model vs destination
MODEL DES TUNER PREAMP CONTROL DISPLAY REMOTE CONTROL
C-V500 K X05-4680-10 X08-2770-10 X11-3720-10 X14-4570-10
P X05-4680-10 X08-2770-10 X11-3720-10 X14-4570-10
Y X05-4670-20 X08-2772-91 X11-3722-91 X14-4570-10
C-V550 I X05-4670-21 X08-2820-20 X11-3780-20 X14-4580-20
M X05-4670-21 X08-2820-20 X11-3780-20 X14-4580-20 GRC-100(A70-1159-05)
X X05-4670-72 X08-2820-71 X11-3780-71 X14-4580-20
C-V700 I X05-4670-21 X08-2820-21 X11-3780-21 X14-4600-20
M X05-4670-21 X08-2820-21 X11-3780-21 X14-4600-20
X X05-4670-72 X08-2820-72 X11-3780-72 X14-4600-20
C-V750 E X05-4682-71 X08-2772-71 X11-3722-71 X14-4592-70 GRC-150(A70-1137-05)
T X05-4680-51 X08-2770-51 X11-3720-51 X14-4592-70 GRC-150(A70-1137-05)
C-V770 C X05-4670-21 X08-2823-01 X11-3783-01 X14-4603-01 GRC-100(A70-1159-05)
Accessories
FM indoor antenna(1)
(T90-0810-05)
Microphone(1)
(W01-0935-05)
*Refer to parts list on page 40.
2
AM loop antenna(1)
(T90-0820-05)
Loop antenna stand (1)
* Graphical Remote Control unit(1)
GRC-100 (A70-1159-05)
Batteries(R03/AAA)(4)
*AC plug adapter(1)
(E03-0115-05)
Cable tidy(2)
(F07-1602-04)
GRC-150 (A70-1137-05)
*Use to adapt the plug on the pow-
er cord to the shape of the wall
outlet. (Accessory only for regions where use is necessary)
Battery cover (A09-0379-08)
DISASSEMBLY FOR REPAIR
1
3
4
4
4
4
4
4
2
x2
x2
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)
C-V500/V550/V700/V750/V770
3
C-V500/V550/V700/V750/V770
No.
ITEM
INPUT
SETTING
OUTPUT
SELECTOR
TUNER/AMP
SETTING
ALIGNMENT
POINTS
ALIGN FOR
FIG.
SELECTOR : FM
1
DISCRIMINATOR
L31↔L32
(E, T only)
(A)
98.0MHz
1kHz, ±40kHz dev
(E, T type)
60dBu (ANT INPUT)
Connect a DC
voltmeter between
port of CN2
AUTO
98.0MHz
L31 (X05-)
0V
(a)
(B)
L32 (X05-)
Minimum
distrotion
2
DISTORTION
(STEREO)
(C)
98.0MHz
1kHz, ±40kHz dev
pilot: ±6kHz dev
60dBu (ANT INPUT)
(B)
AUTO
(98.0MHz)
IFT (W02-)
Mininum
distrotion
(a)
ANTENNA
AM
FM 75Ω
GND
CONNECT WITH
POWER AMPLIFIER
SYSTEM
CONTROL
CD
AUX TAPE 1/ MD
IN
IN REC
PLAY
IN IN
TAPE 2
(MONITOR)
AUDIO
IN
REC
REC
PLAY PLAY
MONITOR
OUT
AUDIO
VIDEO
INPUT
AC-3
UNSWITCHED
LD
VCR
CABLE
/ SAT.
L
R
LD
DVD
DVD
DIGITAL IN DIGITAL IN
Oscilloscope
Distortion meter
AC voltmeter
Dummy antenna
(B)
(A)
(C)
(D)
AG
AG
FM SG
MPX
AG
FM SG
AM SG
(a)
ADJUSTMENT
ERROR MESSAGE
DISPLAY DESCRIPTION
ERR 1 Main u-com sub clock no output
ERR 2 Main u-com sub clock frequency NG
4
C-V500/V550/V700/V750/V770
PARTS DESCRIPTIONS
5
A B DC E
PC BOARD(Component side view)
1
2
3
4
5
6
7
6
Refer to the schematic diagram for the value of resistors and capacitors.
FHJLNGIKMO
PC BOARD(Component side view)
1
2
3
4
5
6
7
Refer to the schematic diagram for the value of resistors and capacitors.
7 8
P Q S U W YR T V X
PC BOARD(Component side view)
1
2
3
4
5
6
7
9 10
Refer to the schematic diagram for the value of resistors and capacitors.
Z AB AD AF AHAA AC AE AG AI
PC BOARD(Component side view)
1
2
3
4
5
6
7
Refer to the schematic diagram for the value of resistors and capacitors.
11 12
A B D F H JC E G I
(
)
(
(
(
)
)
)
18
R27 10K
PHASE DETECTOR
CHARGE PUMP
DATA SHIFT REGISTER LATCH
470P R21 1K
3
C2B I/F
C37
7.2MHz
X1
C38
C36
27P
22P
3CE2
NC1X IN
5
CL4DI
R22 1K
R23 1K
R20 1K
6
DO
8
7
BO1
5
4
2
9
10
11
REFERENCE
DIVIDER
12bit
SWALLOW COUNTER
PROGRAMMABLE
1
2
DIVIDER
1/16, 1/17 4bit
C31
47u10
C32
0.01
22X OUT
20AOUT
21
VSS
+
R70
1K
C28
19AIN
0.022
C29
2.2u50
C30
100u16
+
5.6K
R24
1uH
L3
330
270 1/4W
S-CURVE
UNIVERSAL
COUNTER
DETECTOR
UNLOCK
R32
1.2K
12K
R33
1/4W
100P
C33
PD
17VDD1516FM IN
C34AM IN
1/4W
L4
+
R26
1uH
560
R30
13
14NC
1000P
C35
12
1000P
IF IN
R29
R28
10K
1K
1K
R25
100
R31 10K
R8 330
R2
100
R44
3.3K
R1
CF1
C2
680
C1
330
R4
0.01
R5
10
R3
0.01
CF2
C9 10u16
C10 0.047
+
R47 15K
2
1
FM
IF
DET
DET
LEVEL
FM
270 1W
R41
10u16
+
C25
0.1
L2
3
C20
546
REG
FM
IF
AM/
BUFF
GND
DRIVE
TUNING
AM
IF
COMP
CF3
10.7MHz
8
270
7
R17
C5
1000P
9
10
AM
FM
AM
DET
FM
SW
AM/
VCC
8.2K
C63
22P
C23 1u50
+
R19
3K
R18
+
2.2u50
C11 1u50
11
C12
+
47K
R48
12
PHASE DET
FF
VCO
DRIVE
FF
TRIG
FF
DET
PILOT
1000P
22
C27
+
1u50
L1
+
C26
47u16
R42
220
R43 R45
10K
R46
100K
0.01
C8
TUNE
R6
100
4P
C65
24
7.5K
R14
R40
1K
BUFF
ALC
AM
OSC
23
22P
C15
1u50
C14
+
C13
AM
RF.AMP
AM
MIX
21
AGC
20
19
10u16
C16
R13 47K
+
R7 C17
18
MUTE
17
C19
4.7u25
16
47K 5600P
1000P
C18
X2
456kHz
UNTIBIRDIE
STEREO
DECODER
15
14
SW
STEREO
13
C22
C21
VT VOLTAGE
AM
FM
BAND
HF
LF
HF
LF
FREQ.
5.2V
1.4V
7.6V
1.6V
VT
0.011
0.011
C1
0-8P
GND4
3
2
0.1
C9
ANT11C2
10P
0-100
R2
L3
L4
27P
C7
C16C15
8P
C13
2-6P
R10
18P
680-2.2K R7
100K-
100
R11
C17
100P
6
7
8OSC
IF-OUT
VCC
IFT
3P
C4
5
C8
0.1
VT
R1
100K
180P
C18
L2
GND
GND
R3
33K
C3 0-8P
C19
33K
R4
180P
L5
C5
1000P
R13
680
R5
470K-
1.2M
C10
0.1
C6 4P
R12
100
680K
C20
L6
0-8P
C12
150P
3.9K
R6
68
R14
L1
R9
10K
C14
27P
10K
R8
R73
680
R12
1K
LF: LOWEST FREQUENCY
HF: HIGHEST FREQUENCY
C64
33P
X
M
ABB.
Y
C-V500
C-V500
C-V500
COUNTRY
DESTINATION
X05-4670-21
UNIT No.
YES
YES
A
I
X05-4670-20
X05-4670-72 NO
AUSTRALIA
AUSTRALIA
C-V770
MALAYSIA
GENERAL MARKET
DESTINATION
COUNTRY
X05-4670-72
X05-4670-21
X
C
I
M
NO
YES
UNIT No.
ABB.
A
+15V
+5V
+11V
+11V
+11V
+11V
+11V
+11V
+11V
+11V
+11V
+5V
+11V
+11V
GND LINE
SIGNAL LINE
+B
+B
FM:6.6V
10.5V
1.8V 9.5V
1.0V
11.0V (0V)
0V
0V
1.0V
5.1V
11.0V
2.2V
1.0V
0V
(2.6V)
2.6V
(0V)
2.6V
4.3V
ST: 4.3V
MONO: 0V
0V
(9.0V)
5.1V
2.2V
0V
0.5V
3.1V
(3.7V)
ST: 0V
MONO
:4.8V
3.9V
(1.4V)
5.1V
0V
(0.6V)
4.0V
(0V)
3.7V
5.1V
2.3V
(2.1V)
2.3V
(2.1V)
2.0V
(2.1V)0V(2.9V)
2.6V
(2.1V)
2.1V
2.4V
(0.3V)
1.4V
1.4V
4.1V
2.6V
IC2
(X05-4670-XX) : C-V500/V550/V700/V770 TYPE
IC1
A1 (W02-2582-05)
AM ANT
D1,2,8
Q5,9,10
Q1
D3,4
Q3,6
IC2
IC1
: 2SC2714(R,O)
: 2SA1576A(R,S) or 2SA1586(Y,GR) or
HSS104
MTZJ5.1(B) or UZ-5.1BSB
: 1SS133 or
2SD1819A(Q,R)
: RD5.1ES(B2) or HZS5.1N(B2) or
: 2SC4081(R,S) or 2SC4116(Y,GR) or
2SB1218A(Q,R)
: LC72131
: LA1832
J2
D3
PLL
VT
300Ω
GND
J1
75Ω
D1
D2
FM+B
Q3
Q1
D10
D4
AM IFT
SYSTEM
AM/FM/
MPX
D8
OFF:AM
ON:FM
Q5
FM IF
AMP
IC4 : NJM4565M
: 2SD1757K or 2SD2114KQ7,8
D12
TR1
TR2,3
FET
: 2SC2413
: 2SC2714
: 2SK302
FET
FM FRONT END
TR2
TR1
D1
D2
TR3
D3
RF AMP
OSC
OSC
BUFFER
D1-3 : HVU202 or
1T362
FM
FM
DISTORTION(ST)MIX
D13
D10 : MA111
D13
C-V500
C-V700
: RD3.3ES(B2) or HZS3.3N(B2) or
MTZJ3.3(B) or UZ-3.3BSB
: RD2.7ES(B2) or HZS2.7N(B2) or
MTZJ2.7(B) or UZ-2.7BSB
+B LINE
-B LINE
X
1
2
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 made.
3
4
5
6
7
MODE CARRIER
FREQUENCY DEVIATION
MODULATION
ANT INPUT
FM 98MHz 1kHz STEREO 67.5kHz 7.5kHz(Pilot) 60dB
AM 1000(999)kHz 400Hz MONO 30% MOD 60dB
(
(
(
(
)
)
)
)
X
R15
39K
R16
39K
R49
R50
470
47K
C57 R57
1u50
1u50
C62
C58
4700P
+
C61
+
4700P
47K
CH.SPACE1
GND10
2
3
4
5
6
4
2
3
5
T.MUTE
PLLCE
PLLDO
PLLCLK
PLLDATA
9
8
7
Lch
+15V
-15V
15
13
14
11
12
SD
DET
S-LEVEL
Rch
STEREO
3/5
-E4
X11-A/5
R55
150K
10u16
+
C59
3.3K
R59
R53
47K
R51
47K
3
2
1
8
+
-
R52
47K
R58
C60
10u16
47K
R56
150K
47K
R54
6
5
-
+
7
4
+
R60
3.3K
W115
R61
10K
R62
56K
R63
820
1K
R65
R64
1K
C67
1000P
+15V
-15V-15V
+15V+15V
+15V
+15V
+15V
+15V
+15V
0V
0V
0V
-14.9V
0V
0V
0V
MUTE ON: 0.3V
MUTE OFF:4.9V
ON: 0.7V
OFF: -2.3V
75us: 0.6v
50us:0v
14.5V
C-V500/V550/V700/V750/V770 (1/6)
A
Q10
Q9
CN1
IC4
(1/2)
IC4
(2/2)
S1
CH SPACE
DE-EMPHASIS
FM:50kHz
50uS
AM:9kHz
75uS
AM:10kHz
FM:100kHz
Q7
Q8
Q6
D12
MUTE
MUTE
DRIVE
DE-EMPHASIS
A
K M OL N
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.
Y05-3380-10
The DC voltage is an actual reading measured with a high impedance type voltmeter with no signal input. The measurement value may vary depending on the
measuring instruments used or on the
product.
C-V500/V550/V700/V750/V770
P Q SR T
X
X
X
X
X
X
X
X
X
+B LINE
-B LINE
27P
C82
L61 1uH
C2
1u50
+
BAND
FREQ.
VT
FM
LFHF1.6V
7.8V
AM
1.3VLF
HF 5.0V
VT VOLTAGE
L62
W52
W54
W51
C1
0-8P
GND4
3
2
0.1
C9
ANT11 C2
10P
0-100
R2
L3
L4
27P
C7
C16C15
8P
C13
2-6P
R10
18P
680-2.2K R7
100K-
100
R11
C17
100P
6
7
8OSC
IF-OUT
VCC
IFT
3P
C4
5
C8
0.1
VT
R1
100K
180P
C18
L2
GND
GND
R3
33K
C3 0-8P
C19
33K
R4
180P
L5
C5
1000P
R13
680
R5
470K-
1.2M
C10
0.1
C6 4P
R12
100
680K
C20
L6
0-8P
C12
150P
3.9K
R6
68
R14
150K-
GND
4
GND3
GND2
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
DESTINATION
COUNTRY ABB.
K
PCANADA
U.S.A.
UNIT No.
0-12
A - CNOR3
560
R16,
15
20
C53,
54
0.033
63
C62,
NO
C73
YES
CF1,2
L72-0536
L62
L39-1351
W11
NO
W51,52,
54,55
YES
10K
R9
10K
R8
C14
27P
L1
LF: LOWEST FREQUENCY
HF: HIGHEST FREQUENCY
W76
R61
22K
1M
R70
R61-66,
NO
68,70
(MS3)
53,76
NO
W6,13,
0.027
C53,
2-71
UNIT No.
COUNTRY
DESTINATION
ABB.
1.8K
R3A - C
YES
R61-66,
20
10
R16,
68,70
NO
L39-1351
L72-0596
C62,
6354
NO
C73
CF1,2
(MS2)
L62
W51,52,
54,55
YESNO
53,76
W6,13,
W11
YES
EUROPE E
U.K. T 0-51 YES
NO
YES
NO
Q61-
65
Q61-
NO
65
YES L39-1352 YES NO
+7V
GND LINE
SIGNAL LINE
+B
+B
3.6V
MW: 0V
LM: 0.7V
(X05-468X-XX) C-V500/V750 (K,P,T,E) TYPE
(K,P) TYPE
A1 (W02-2582-05)
A1 (W02-2584-05): (T,E) TYPE
(T,E) TYPE
J2
IC1 : LA1836
IC2 : LC72131
D1,2,32,61,62 : 1SS133 or
D31 : RD8.2ES(B2) or
D62
D61
HSS104
HZS8.2N(B2)
AM ANT
GND
J1
75
TR1
TR2,3
FET
: 2SC2413
: 2SC2714
: 2SK302
FET
FM FRONT END
TR2
TR1
D1
D2
TR3
D3
RF AMP
OSC
OSC
BUFFER
D1-3 : HVU202 or
1T362
FM
TR3
: 2SC2413
KV1440
: SVC220 or
: 2SK302
: 2SC2714
J2
FET1
TR2,3
TR1
D1-4
GND
AM ANT
FM
75Ω
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)
C-V500 (X05-4680-10)
MIX DISTORTION(ST)
DISTORTION(ST)MIX
Q61
Q65
Q65 : 2SK302(Y,GR)
Q63 : 2SC2878(B)
C-V750 (X05-468X-XX)
Ω
1
2
3
4
5
6
7
U W Y AA ACV X Z AB AD
(
)
)
(
)
(
)
(
X
X
X
X
(
(
(
(
)
)
)
)
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
R80 1K
R81 1K
R83 1K
R82 1K
2
4
5
3
470P
R84 10K
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
1716151413
12
1
2
345
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
DETIF
COMP
AM
AGC
AM
RF.AGCMIX
AM AM
27
25
26
DET
12
PHASE DET
8
9
10
11
SW
AM/
FM
VCC
13
14
15
DECODER
UNTIBIRDIE
VCO
FF
STEREO
DRIVE
24
23
22
21
MUTE
PILOT
FFFF
TRIG
SW
STEREO
18
20
19
17
16
X31
C36 0.047
10u16
C35
++
10u16
C33
C34 0.01
C32
+
C31
47u16
0.01
C37
33K
R59
2.7K
R32 5.6K
10u10
C38
+
C30 0.047
R331u50
C40
+
0.47u50
C41
+
3K
C42
2.2u35
+
47K
R49
R34
8.2K
22P
C45
R37
C44
0.047
+
0.47u50
C43
100u10
C46
+
R38 33K
100P
C70
C47
1u50
C49
+
R44
10u10
C52
R4310u10
R36
21
10uH
L63
2P
C68
L34
R41
2.2K
2K
R40
R42 2K
1500P
C50
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
150 1W
R31
C48
L31
L32
0.01
C2B I/F
100P
R39 82K
4700P
R35
39K
2.4K
2.2K
L81
1uH
R67
100K
+
+
C51
2.2u50
+
+
2.2u50
C57
8200P
R47
L35
R45
R46
C58
8200P
R48
L36
1K
1K
3.9K
3.9K
W55
0.01
C61
820P
C73
W11
C55
C56
2.2K
C53
C54
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
3/5
-E4
X11-A/5
100K
R52
0.1
C60
1K
R53
10K
R50
100
3.9K
R51
R57
100
C59
100P
R56
R55
5.6K
8.2K
R103
R105
R101
820
1K
1K
R102
1000P
22P
C67
2.2K
W85
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
R20
C9
0.01
0.01
C10
R7
220
W27
C64
0.033
47K
R104
W13
W56
2.2K
R68
W6
C63
9P
0.033
C62
1M
R62
R64
47K
R63
15K
R65
1.5K
R66
10K
W24
+11V
+11V
+11V
+11V
+11V
+11V
+11V
+8V
+11V
+8V
+15V
+15V
-15V
+15V+15V +15V
+8V
+15V
+15V
+11V
+11V
+11V
+11V
6P
C66
+5V
11.0V
8.1V
ST: 7.2V
MONO: 0V
8.1V
DT
0V
ST: 0V
MONO
: 4.8V
3.7V
8.1V
3.7V
3.7V
2.7V
(4.0V)
3.7V
3.7V
1.9V
(1.5V)
3.7V
0V
(1.3V)
11.0V
9.4V
9.1V
8.7V
8.7V
0.8V
1.8V
1.2V
1.3V
1.9V
9.3V
5.1V
98MHz
:3.8V
(0V)
11.0V
2.5V
1.0V
5.0V
1.0V
0.2V
0V
11.0V
0V
(2.5V)
2.5V
(0V)
2.5V
4.6V
12.2V
0V
(9.1V)
7.1V
(0V)
8.1V
8.3V
14.5V
7.7V
3.8V
3.3V
8.3V
2.3V
2.9V
(3.1V)
2.9V 3.7V 3.7V
3.7V
3.7V
3.8V
2.9V
(3.9V)
4.7V
(1.7V)
MUTE
ON: 0.7V
OFF: -2.2V
-14.9V
7.1V
1.7V
0.2V
8.1V
3.8V
(2.4V)
6.7V
(0V)
0V
(0.6V)
14.5V
IC2
IC1
C-V500/V550/V700/V750/V770 (K) (2/6)
B
D81
PLL
D31
Q32
D32
CN2
DISCRI
Q31
Q81
FM +B
VT
AM/FM
SYSTEM
/MPX
DISCRI
ON:FM
OFF:AM
Rch
B
CN1
Q34
Q33
Q102Q101
Q103
D101
Lch
D102
MUTE
MUTE
DRIVE
S METER BUFFER
BUFFER
DET-OUT
DET OUT:AMP
DETECTOR:BUFFER
IF
AMP
Q1
D1
Q2
D2
Q3
Q4
Q62
Q63
Q64
X
A
X
C
X
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 made.
MODE CARRIER
MODULATION
FREQUENCY DEVIATION
FM 98MHz 1kHz STEREO 67.5kHz 7.5kHz(Pilot) 60dB
AM 1000(999)kHz 400Hz MONO 30% MOD 60dB
ANT INPUT
C-V500/V550/V700/V750/V770
Y05-3380-10
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, leakagecurrent or resistance
measurements 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 with
no signal input. The
measurement value may vary
depending on the measuring
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