O
F
H
J
L
N
G
I
K
M
VR-4080-B/4090-B/4700/4900
Y05-4060-10
3.6V
8.2V
1.3V
7.0V
(9.2V)
8.8V
(3.9V)
7.0V
(1.7V)
(3.6V)
(1.3V)
0V
(1.4V)
0V
3.4V
4.3V
4.3V
3.4V
2.9V
(3.6V)
2.8V
1.1V
0V
0V
2.6V
4.3V
(0V)
[0.6V]
0V
0V
0V
1.8V
10.6V
0V
1.1V
8.2V
6.2V
1.1V
6.8V
1.3V
5.0V
4.3V
2.6V
0V
6.7V
0V
4.0V
8.2V
(0V)
(2.3V)
4.3V
0V
(0.9V)
3.6V
3.7V
3.7V
(3.6V)
3.7V
3.7V (3.6V)
1.8V
0V
0V
0V
6.9V
5.2V
0V
3.6V
3.6V
0V
(0.2V)
8.2V
(11.3V)
0V
10.0V
3.5V (3.0V)
0.6V
9.8V
AM: 0V
FM: 6.4V
(@FM98MHz)
3.8V
5.2V
0V
(5.0V)
0V
0V
0V
0V
0V
-2.2V
3.4V
-2.2V
10.8V
14.3V
14.3V
270
R44
100
0.01
C3
R8
R2
220
C2 0.01
3.3K
R7 820
680
R4
CF1
CF2
R12
100
1/4W
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
330P
10u50
C23
+
4.7u25
C27
C25
VR1
10K
R27
R28
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
10u50
C14
+
R17 3.6K
C45 22P
+
C15 1u50
3.9K
3K
R18
0.47u50
C16
+
R19
C17 1u50 +
8.2K
L4
3.9K
R37
R36
100
R35
1
C81
L3
0.047
C1
1
47u16
C10
+
2
1
R23
R83 1K
47P
C76
47P
21
C B I/F
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
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
C1
3300P
C18
L5
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
DET
S-LEVEL
SD
STEREO
R
GND
L
+17V
-17V
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
0.01
0.01
R80 22K
4.7u50
C32
+
R40
10K
1K
R38
R39
1K
L6
W82
8200P
C70
L7
C71
8200P
W83
8.2K
R75
1K
1.8K
R76
R77
47K
R74
W56
6
3
5
4
3
5
4
6
R84
1K
1K
R72
R73
C78
C49
C24
R85
33K
33K
R86
R87
33K
3300P
C85
3300P
C84
R88 56K
3300P
C88
33K
R89
R20
1
C91
100P
C77
1K
R29
R79 3.3K
R33
R34
VREF
T
.METER
B
+B
1K
1000P
C74
27P
C43
+12V
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
17.6V
+B
+B
C82
C8
47u16
C7
+
3.3K
R49
R15
0.018
100
33K
C93
1000P
C92
1000P
820
R78
W60
150 1W
R81
+14.3V
+B
+14.3V
+14.3V
+14.3V
+14.3V
+14.3V
+14.3V
+14.3V
C41
1.5K
R27
5
11
R30 1K
417.3
OSC FREQUENCY
414.3 411.3
VT VOLTAGE
2.35
2.40
2.30
0.5
0.5
0.5
8
6
CHANNEL
+5V
1
2
3
CHANNEL
1
10P
2
3
4
C2
L1
1
10P
R10 330
C7
220P
C6
+5V
4
3
5
2
5
7
6
8
1
C15 5P
430
430
1
2
3
12
R3
R2
10P
R1
C1
+5V
R17
R21 10
100
+B
R16
+B
1000P
0.022
C8
C5
+5V
390
R1
1
C12
C11
7
2
6
3
C13
2.2
R15
4P
C14
1P
4P
10P
5
4
150n
L2
47
R13
23n
+5V
R12 10
C10 1000P
L3
C9 10
CF1
R28 680
100
R26
100n
0.022
180K
R18
10
220P
C17
L4
R19 470
47K
R14
4.7K
C16
R25
4.7
9
10P
C18
R20
C25
10
0.01
C27
+B
7
8
6
10
0.47
C26
NO
W56
4.7K
DESTINATION
+B
1K
R29
C29
100P
C28 0.01
R33
1K
R38 2.2K
2.2K
R32
2.2K
R31 1K
R35 2.2K
C30 0.01
R34
100
R36
15
R22
13
C19
470P
1K
4
1000P
C21
12
4
1K
R23
3
1K
R24
2
3
2
14
C24 1000P
C20 10
+B
C23
+B
1
16
C22
15P
12.800MHz
X1
+B
15P
4700P
4.7K
R41
C32 0.047
100K
R40
100
R37
4.7K
R39
C31 10
4.7
C33
C34
470P
C36
100
R42
C35 0.01
10K
R43
1
R45
R44
10K
10P
C37
1M
C38
COUNTRY
U.S.A.
ABB.
K
0-10
UNIT No.
11
YES
33
NO
C
F
A
R8,
B
NO
R29
28
18K
4.7K
6.8K
R25
R23
R27,
R90
73
33K
2.2K
YES
R72,
R53
92,93
YES
C74,82,
0.033
C30,
31
71,77
NO
180P
C8,70,
C25
2.2u50
C49
L72-0596 (MS2)
80
1000P
YES
C78
C79,
NO
CF1,2
L2,6,7
DESTINATION
100
R50
R48
4.7K
6.8K
R46
R47
330P
C39
C40 0.01
47K
R49 4.7K
+5V
100
R54
R51
10K
R52
4.7
C41
C42 10
+5V
2
3
4
DATA
CLK
2
1
FFC GND
CE
4
3
C43
4.7K
R53
GND
5
OUT
6
22
+5V
+B(+5V)
7
U.S.A.
CANADA
COUNTRY
71,77,
C8,70,
4.7K
R23
K
P
0-11
UNIT No.
ABB.
NO
33
B
C
A
R8,
11
F
R29,
18K
NO
6.8K
R25
28
R27,
33K
2.2K
YES
73
R72,
R53
R90
C74,82,
180P
NO
0.033
C25
C30,
31
2.2u50
YES
C49
92,93
L72-0596 (MS2)
CF1,2
1000P
YES
80
C79,
C78
NO
F10-1108
87
YES
NO
NO
W82,83,
W56
S1
E1
F10-1108
E1
YES
NO
83,87
W82,
S1
6,7
L2,
4.9V
2.3V
0.8V
3.0V
2.7V
2.5V
1.9V
4.5V
2.5V
4.6V
1.4V
0.8V
4.6V
2.3V
4.2V
0.7V
3.7V
4.4V
2.2V
3.0V
1.6V
2.2V
3.3V
3.0V
4.9V
0V
2.6V
2.6V
0.6V
0.9V
0.4V
2.0V
2.4V
4.8V
4.2V
3.2V
3.7V
4.9V
5.0V
2.0V
5.0V
5.0V
Q1
D1
1
A
ADJ
FM TUNED
Q3
Q4
DE-EMPHASIS
75uS: ON
50uS: OFF
Q7
C
B
PLL
D4
FM +B
Q14
FM/AM/MPX
SYSTEM IC
CN2
MUTING
CN1
Q2
FM IF AMP
D3
(S METER)
Q6
F
D9
Q10
Q11
Q12
CONT.
MUTING
D13
S1
CH.SPACE
DE-EMPHASIS
FM :100kHz 75uS
AM :10kHz
AM :9kHz
FM :50kHz 50uS
GND LINE
SIGNAL LINE
B LINE
B LINE
BUFFER
BUFFER
ATT
IC1
:
IC2
: LC72131
Q2,12,14
: 2SA1576A(R,S) or
2SA1586(Y,GR)
Q1,3,4,6,7
: 2SC4081(R,S) or
2SC4116(Y,GR)
Q10,11
: 2SD1757K
D1
: DA204U or
1SS302 or
MA143A
D3
: RD8.2ES(B2) or
MTZJ8.2(B)
D4
: RD5.1ES(B2) or
MTZJ5.1(B)
D9
: RD3.3ES(B2) or
D5
: RD2.7ES(B2) or
MTZJ2.7(B)
DISCRIMINATOR
LA1837
MTZJ3.3(B)
MA111
:
D8,11,13
D8
CONT.
D5
3/6
VT VOLTAGE
CHANNEL FREQUENCY (MHz)
D2
X13-A/5
-WH1
D1
J1
D3
CONVERTER
DOWN
Q3
VR4900 (X05-5130-10)
Q4
Q5
Q6
Q7
PLL
Q8
Q9
2SC4081(R,S)
D1,2,4
D3
: MA111
KV1832E
:
2SC4178(F13,F14)
2SB1218A(Q,R) or
2SD1819A(Q,R) or
2SA1576A(R,S)
2SC5065(O,Y)
UPC2748T-E3
Q4-6
:
Q8-10
Q7,11,12
:
:
IC2
IC3
Q3
:
LV2105V
:
:
VR-4080-B/4700 (X05-5130-11)
Q10
Q11
D4
Q12
IC1
UPC1687G
:
CN1
3/6
X11-D/4
-CN202
RF
ANTENNA
IC2
IC1
(X05-51XX-XX)
VR-4080/4080-B/4090-B/4700/4900 (1/6)
A
IC3
IC1
IC2
B
(X05-5100-10)
CAUTION: For continued safety, replace safety critical components only with manufactur-
er'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.
