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A
B
TUNER UNIT (X05-4622-71)
1
2
D61
J1
A1 FM FRONT END(W02-2565-05)
D62
AM ANT
GND
2
GND
RF AMP
3
GND
TR1
D3
C25
1
6P
FM 75Ω
ANT
C20
4P
3
J2
7
GND
TR1
: 2SK360
TR2
: 2SC2620QB
TR3~5
: 2SC2413K or 2SC2778
D1~3
: 1SV225 or HVM16
4
VT VOLTAGE
LF: LOW FREQUENCY
HF: HIGH FREQUENCY
BAND
FREQ.
VOLTAGE(VT)
LF
2.1V
FM
HF
7.5V
LF
1.1V
AM
5
HF
4.6V
CAUTION: For continued safety, replace safety critical components only
with manufacturer's recommended parts (refer to parts list).
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
6
appliance 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 measurement value may vary depending on the measuring
instruments used or on the product. The value shown in (
measured in the AM made.
MODULATION
MODE
CARRIER
FREQUENCY
DEVIATION
FM
98MHz
1kHz
STEREO 67.5kHz 7.5kHz(Pilot)
7
AM
1000(999)kHz
400Hz
MONO 30% MOD
C
D
DISTORTION (ST)
J2 0
T1
MIX
TR2
R2
C2
D1
C6
33
3P
4P
C28
18P
J1
R10
VCC 4
0
220
R7
100K
TR4
C9
C12
C16
2P
12P
OSC
TR3
TR5
10P
D2
IF-OUT
C17
0.01
BUFFER
OSC 6
IC1
: LA1836
IC2
: LC72131
IC3
: M5223FP
Q1,2
: 2SC2714(R,O)
Q3,81,103
: 2SA1586(Y,GR) or 2SA1611(M5,M6)
Q31,32
: 2SC4116(Y,GR) or 2SC4177(L5,L6)
Q101,102
: 2SD1757K
D1,33,61,62
: 1SS133 or HSS104
D31
: MTZJ8.2(B) or UZ-8.2BSB
D32
: MA111
D81
: MTZJ5.1(B) or UZ-5.1BSB
D101
: MTZJ3.3(B) or UZ-3.3BSB
indicates
SIGNAL LINE
GND LINE
) is actual reading
ANT INPUT
60dB
60dB
E
F
L63 10uH
C68 2P
RF
OSC
L62
C61
0.01
R2
VT 5
220
9.9V
2.1V
10.6V
C5
C6
0.01
0.01
10.6V
Q2
2.1V
1.4V
1.4V
Q1
8
CF1
Q1,2
FM IF
AMP
12.1V
RF ATT
0V
R17
Q3
620
12.3V
G
H
DISCRI
CN2
1
2
3.1V
+
3.7V
+
1.8V(1.5V)
3.6V
0V(1.1V)
2.8V(3.9V)
3.6V
L33
+
+
CF2
C37
1
AM IFT
+
8.3V
R31
DISCRIMINATOR
82 1W
C69
0.01
VT
C82
1.0V
27P
2.5V
IC2
12.3V
PLL
IC
REFERENCE
PHASE DETECTOR
DIVIDER
CHARGE PUMP
R20
1.2K
POWER
UNLOCK
DETECTOR
2
DATA SHIFT REGISTER LATCH
C B I / F
2.5V
C81
22P
C92 470P
I
J
L34
BUFFER
B.P.F
Q31
C50
1000P
R41
2.6V
2.2K
R42
47K
C53 0.027
C54 0.027
C56
2.2u35
+
+
+
+
C55
2.9V
2.2u35
+
3.6V
4.1V(1.3V)
R35
1.7V
7.3V
33K
L31
L32
+
+
+
+
R59
2.2K
2.5V(0V)
0V(2.5V)
1/2
SWALLOW COUNTER
12bits PROGRAMABLE
1/16,1/17 4bits
DIVIDER
ON
RESET
UNIVERSAL COUNTER
0V(9.7V)
12.3V
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