A
C
E
G
I
B
D
F
H
J
2
1
3
5
7
4
6
TR3
1T362
: HVU202 or
: 2SC2413
D1-3
TR2,3
: 2SK302
: 2SC2714
TR1
FET
D3
TR2
OSC
BUFFER
OSC
DISTORTION(ST)
D1
FET
D2
RF AMP
TR1
MIX
GND
FM 75
J1
FM FRONT-END
Q1
D1
LEVEL
FM TUNING
Q3
Q4
EMPHASIS
75uF: ON
50uF: OFF
B
PLL
D4
FM +B
Q14
FM MPX
AM SYSTEM
CN2
MUTE
CN1
FM DE MPX
Q2
IF AMP
D3
D8
D9
Q10
Q11
Q12
DRIVE
T.MUTE
D5
IC1
:
IC2
: LC72131
Q1,3,4,8,9
: 2SC4177(L5,L6) or
Q2,12,14,15 : 2SA1611(M5,M6) or
Q10,11
: 2SD1757K
D1
: DA204U or
D3,6
: RD8.2ES(B2) or
D7,8,13,16
: MA111
RD5.1ES(B2) or
D4
:
RD3.3ES(B2) or
D9
:
RD2.7ES(B2) or
D5
:
A1
:
D13
AM ANT
KRF-V7772D (X05-503X-XX)
-CN4
X09-A/5
3/4
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
VR-3080 (X05-5030-10)
TR3
D4
: HSU277 or
1SS356
1T363
: HVU202 or
: 2SC2413
D1-3
TR2,3
: 2SK302
: 2SC2714
TR1
FET
D3
TR2
OSC
BUFFER
OSC
DISTORTION(ST)
D1
D4
FET
D2
RF AMP
TR1
MIX
Q15
AM +B
E
DECODER
AM STEREO
BUFFER
D16
D7
D
Q8
D6
Q9
S1
CH.SPACE
DE-EMPHASIS
LA1837
IC3
MC13028AM
:
GND
GND
ANT2
ANT1
4
3
2
1
100
100
R12
680K
R11
100K-
680-2.2K
R6
8P
0-8P
2-6P
C20 150P
R9
L6
C12
R10
10K
C15
27P
27P
C14
C16
3.9K
C13
R8
10K
R7
C17
100P
8
OUT
IF-OUT
7
C10
33K
L3
0-100
100K
0-8P
C18
C1
180P
L1
L2
10P
R1
C2
C6 4P
C3 0-8P
1.2M
470K-
1000P
180P
0.1
C9
68
R14
C19
C5
R5
L5
L4
3P
R13
680
C7
27P
R3
R2
C4
R4 33K
0.1
+B
6
VT
IFT
C8 0.1
5
OSC
270
R44
100
0.01
C3
33
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
38K
304KHz
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
6.8K
6.8K
2.2u50
C29
+
2.2u50
C28
+
C31
C79
C30
C80
10u50
C38
+
10u50
C37
+
0.01
C34
C33
0.01
560
R30
47K
R31
0.047
C12
22
R16
R14
33K
R15
10u50
C14
+
R17 3.6K
C45 22P
+
C15 1u50
3.9K
3K
R18
0.47u50
C16
+
R19
C17
1u50
+
8.2K
L4
1
C81
L3
0.047
C1
1
47u16
C10
+
2
1
R23
47P
C76
C41
47P
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
R48 1K
R47 3.3K
R46 3.3K
R45 3.3K
470P
C44
47u16
C48
+
10u50
C46
+
1000P
+
0.022
R53
1K
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
VCC
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
+
W82
W83
820
8.2K
R75
1K
1.8K
R76
R78
R77
47K
R74
W56
6
3
5
4
3
5
4
6
R84 3.3K
1K
1K
R72
R73
C78
C49
R85
33K
33K
R86
R87
33K
3300P
C85
3300P
C84
56K
R88
3300P
C88
33K
R89
R20
C91 1
R79 3.3K
R33
R34
W60
VREF
T
.METER
0-01
0-21
GENERAL MARKET
AUSTRALIA
J
Y
UNIT No.
DESTINATION
COUNTRY
ABB.
C26,
D
B
E
78
31
0.022
C30,
YES
R29
B
+B
JAPAN
X
PX
M
C74
1000P
L72-0596
(MS2)
CF1,2
W02-2622
A1
ABB.
COUNTRY
U.S.A.
CANADA
DESTINATION
NO
P
K
0-10
UNIT No.
D
B
E
W56
NO
NO
R29
4.7K
R23
78
YES
C26,
S1
NO
0.033
NO
31
C30,
C77
B I/F
+B
+B
+B
+B
+B
+B
+B
+B
+15V
+15V
+15V
15V
+15V
+B
+B
+B
+B
+B
+B
+B
+15V
+15V
+15V
GND
GND
ANT2
ANT1
4
3
2
1
100
100
R12
680K
R11
100K-
680-2.2K
R6
8P
0-8P
2-6P
C20
180P
R9
L6
C12
R10
10K
C15
18P
27P
C14
C16
3.9K
C13
R8
10K
R7
C17
100P
OSC
IF-
C10
33K
L3
0-100
100K
3-10P
C18
C1
180P
L1
L2
15P
R1
C2
C6 4P
C3 3-10P
1.2M
470K-
1000P
180P
0.1
C9
68
R14
C19
C5
R5
L5
L4
5P
R13
680
C7
27P
R3
R2
C4
R4 33K
0.1
VCC
6
VT
IFT
C8
0.1
5
7
OUT
8
+B
1.2K
R60
R61 12K
1000P
C55
C56
R63
C65
10u10
10K
C63 0.47
R70
C62 10u10
W86
C66
10u10
W81
+
W1
1
0.01
C64
DETECTOR
+
7
8
6
QUALITY
SIGNAL
+
4
5
3
1
2
AM STEREO
DETECTOR
1/8
IF
AMP
PILOT
DETECTOR
R69
680K
VCO
AGC
10
9
11
R71
220
13
12
14
15
16
C67
C68
0.47u50
10u50
C69 0.22
+
+
C61 33P
47u16
C59
C57 2200P
R66 9.1K
C58 2200P
R67 9.1K
R68 47
+
C60 10P
X2
5.6K
R62
+
10u50
R64 20K
C54
5.6K
0.1
0.1
C53
20K
R65
100P
C77
FM: 100kHz 75uS
AM: 10kHz
AM: 9kHz
FM: 50kHz 50uS
1K
R29
R8
33
100
R27
R28
C24
33K
33K
1000P
C92
1000P
C93
0.018
18K
680
R90
W61
2.2K
R53
C24
330P
C25
180P
C49
2.2u50
1000P
80
C79,
0-71
NO
NO
YES
YES
NO
YES
NO
R25
560
2.2K
R53
0.01
C24
330P
C25
330P
820P
YES
NO
4.7u50
2.2u50
C49
NO
YES
C77
1200P
1500P
C79,
80
W02-2622
A1
W02-2621
(MA5)
CF1,2
L72-0531
S1
W56
YES
YES
NO
NO
YES
R25
4.7K
6.8K
R23
4.7K
1/4W
Q10,11
1K
R83
27P
C43
+B
+B
+B
+B
+B
+B
A1 (W02-2622-05)
(K,P,Y,M,X) TYPE
IC2
IC1
TUNER UNIT (X05-503X-XX)
A
KRF-V7772D (1/4)
VR-3080 (1/4)
A1 (W02-2621-05)
(J) TYPE
IC3
3.6V
(3.6V)
8.2V
(8.2V)
(0V)
0V
(8.2V)
8.2V
(1.3V)
1.3V
(2.3V)
0V
(0.2V)
0V
(7.0V)
7.0V
(9.2V)
8.8V
(0V)
4.3V
(3.9V)
7.0V
(1.7V)
1.8V
(3.6V)
3.7V
(1.3V)
0V
(1.4V)
0V
(0.9V)
3.6V
(3.4V)
3.4V
4.3V
(4.3V)
(4.3V)
4.3V
4.3V
(4.3V)
(3.4V)
3.4V
(2.9V)
2.9V
3.7V
(3.6V)
(3.6V)
3.7V
2.8V
4.0V
1.1V
5.2V
2.6V
0V
0V
0V
2.6V
0V
0V
0V
4.3V
(0V)
1
1.3V
(11.3V)
0V
7.2V
0V
[0.6V]
0V
0V
0V
1.8V
10.6V
11.2V
11.3V
[75uS]
50uS
0V
0V
(0V)
0V
1.1V
(3.6V)
3.6V
(3.6V)
3.6V
(5.0V)
0V
8.2V (8.2V)
(3.6V)
3.7V
6.2V
1.1V
6.8V
1.3V
-2.2V
0V
0V
0V
-2.2V
3.4V
5.0V
0V
-2.2V
10.7V
11.4V
11.3V
0.9V
8.1V
1.0V
0.7V
0V
1.0V
0V
1.0V
0.4V
0.4V
0.9V
1.0V
0.9V
0V
8.1V
1.6V
0.7V
1.6V
1.6V
1.6V
8.1V
0.9V
KRF-V7772D/VR-3080
Y05-3850-10
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 components only with manufactur-
er's recommended parts (refer to parts list). indicates safety critical components. For con-
tinued 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 car-
ried out (exposed parts are acceptably insulated from the supply circuit) before the appli-
ance 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 mea-
surement 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.
KRF-V7772D(K)
SD2,2P(
99.10.29
10:17
AM
y [ W 2
