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
Summary of Contents for C-V751
Page 30: ...C V751 39 PARTS DESCRIPTIONS ...
