Kenwood C-V751, Руководство по обслуживанию

Страница: 14 / 31

K L N P R T M O Q S
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) or Q3,64,81,103
: 2SD1757K Q101,102
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
+1
1V
+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
2 1
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
R89 R90
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
GND 3
NC 2
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 5-10P
0.1
C14
L3 L4
R2
R4
5P
1000P
C10
680K-1.5M
R5
100
R8
L6
680
R9
C15
27P
C12 2P
C1
1
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
R1
1
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
+1
1V
+1
1V
+1
1V
+11V
+11V
+11V
+8V
+8V
+1
1V
+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