Schematic Diagram - Kenwood C-V500 Service Manual

Stereo integrated amplifier/tuner
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U
V
X
Q62
X
R68
2.2K
X
R63
X
Q64
X
47K
W6
X
X
Q63
C61
0.01
X
W13
R12
100
X
A
IF
D2
Q4
C5
R8
AMP
0.01
680
9.3V
R2
8.7V
1.9V
220
X
Q1
CF1
R22
C3
10
1.8V
1.3V
0.01
+
R1
+11V
220
7.1V
1/4W
(0V)
R90
R89
5.6K
100
VT
1/4W
98MHz
5.1V
+
+
:3.8V
R87
R86
1K
1K
1K
+
0.2V
5.0V
R88 1K
1.0V
2.5V
IC2
PLL
1.0V
0V
(2.5V)
2.5V
(0V)
REFERENCE
PHASE DETECTOR
UNLOCK
DIVIDER
CHARGE PUMP
DETECTOR
1
SWALLOW COUNTER
1/16, 1/17 4bit
2
12bit
PROGRAMMABLE
DIVIDER
UNIVERSAL
C2B I/F
DATA SHIFT REGISTER LATCH
COUNTER
12.2V
0V
4.6V
2.5V
(9.1V)
X81
7.2MHz
R84 10K
R80 1K
2
R81 1K
4
R82 1K
C92
5
470P
R83 1K
The DC voltage is an actual reading measured with a high
3
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.
W
X
DISCRI
CN2
1
2
+11V
+
R66
1.5K
R36
39K
+11V
1.9V
(1.5V)
11.0V
3.7V
9.4V
3.7V
9.1V
X
8.7V
Q3
R20
AM
AM
AM
ALC
OSC
MIX
RF.AGC
X
0.8V
CF2
BUFF
Q2
S METER
1.2V
LEVEL
DET
S-CURVE
AM/
FM
IF
BUFF
FM
IF
FM
DET
3.7V
REG
+11V
11.0V
(0V)
3.7V
3.7V
8.1V
FM +B
DT
11.0V
Q81
L33
+11V
+
+
0V
R93
1.2K
8.1V
+
11.0V
+11V
ST: 7.2V
MONO: 0V
MODE
CARRIER
FM
98MHz
AM
1000(999)kHz
Y
Z
DETECTOR:BUFFER
X
DET OUT:AMP
B
8.3V
2.9V
(3.1V)
Q31
C50
1500P
2.3V
R41
2.2K
+
C51
10u10
R43
2.2K
+
+
C52
0V
2.9V
4.7V
10u10
(1.3V)
3.7V
(3.9V)
(1.7V)
2.9V
3.7V
3.7V
3.7V
2.7V
(4.0V)
DECODER
UNTIBIRDIE
STEREO
AGC
SW
STEREO
DRIVE
TRIG
MUTE
AM
AM
IF
DET
FF
FF
FF
PILOT
VCO
COMP
DET
AM/
FM
TUNING
SW
DRIVE
PHASE DET
AM
FM
GND
8.1V
VCC
R35
33K
6.7V
0.2V
1.7V
(0V)
0V
3.8V
(2.4V)
8.1V
ST: 0V
MONO
L31
: 4.8V
L32
+
+
+
R59
2.7K
DISCRI
+8V
MODULATION
ANT INPUT
FREQUENCY
DEVIATION
1kHz
STEREO 67.5kHz 7.5kHz(Pilot)
60dB
400Hz
MONO 30% MOD
60dB
AA
AB
8.3V
R55
+15V
5.6K
14.5V
DET-OUT
BUFFER
R56
Q33
7.7V
R57
L34
100
100
S METER BUFFER
3.8V
R50
Q34
10K
R53
1K
R42 2K
X
C
3.3V
C56
2.2u50
R46
+
1K
C55
2.2u50
R45
3.7V
+
1K
L35
L36
Lch
Rch
R47
3.9K
R48
3.9K
Q101
Q102
MUTE
ON: 0.7V
MUTE
OFF: -2.2V
IC1
R105
8.2K
3.8V
AM/FM
/MPX
R102
SYSTEM
Q103
1K
MUTE
DRIVE
+15V
-14.9V
-15V
(
5
7.1V
(
4
ON:FM
(
3
OFF:AM
(
2
0V
(0.6V)
Q32
+
14.5V
8.1V
R31
+8V
+15V
150 1W
+11V
C-V500/V550/V700/V750/V770 (K) (2/6)
C-V500/V550/V700/V750/V770
Y05-3380-10
AC
AD
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.
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
CN1
15
DET-OUT
14
S-LEVEL
13
SD
X11-A/5
12
STEREO
-E4
11
Rch
10
GND
3/5
9
Lch
8
+15V
B
7
-15V
6
T.MUTE
)
5
PLL-DATA
)
4
PLL-CLK
)
3
PLL-CE
)
2
PLL-DO
1
MONO

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V550V700V750V770

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