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SCHEMATIC DIAGRAM-6
: AM/FM SIGNAL LINE : +B SIGNAL LINE
R4
330
NE
: AM OSC SIGNAL LINE : AM SIGNAL LINE
: FM OSC SIGNAL LINE : FM SIGNAL LINE
10K CF2 RLFFETWN02DD 1 3
C5
R8 680K
5.6P
R9
<0.57V> (0V)
<3.66V> (0V)
1
2
Q2
<0V> (0V)
R21 22K C20 25V 10
Q6
RVTDTA114EST Q6
<14.38V> (0V) <0.06V> (14.52V)
POWER SUPPLY SWITCH
R43 22K
0.033 C19 560P 47K 50V 4.7 C15 100P C31
C38 0.01
0.018
R20
C39 4700P
R2
R23 68K C37
4700P C18
0.018 C17
<14.49V> (14.55V)
<3.95V> (4.27V)
C16
4.7K
C42
<3.19V> (3.97V)
R42 1K R41 1K
4700P 4700P 100K R46 100K R45 C43 C44
<2.69V> (0.51V)
<2.06V> (2.05V)
<2.07V> (2.05V)
<2.01V> (2.00V)
<1.69V> (1.69V)
<1.17V> (1.69V)
<0V> (1.26V)
<5.44V> <2.31V> (5.77V) (2.04V)
<2.31V> (2.04V)
50V1 C41 50V1
1000P
C9
24
FM IF in OSC OUT
23
AM MIX out OSC
22
AFC
21
AM IF in AM RF in
20
AGC
19
AM OUT
18
DET OUT
17
FM DET PILOT IN
16
MPX IN
15
PILOT OUT
14
Rch
13
Lch
IC1
FM/AM Mono
IC1
GND
<5.45V> (5.77V)
<5.16V> (5.15V)
<5.24V> (5.24V)
<3.39V> (4.84V)
<5.45V> (5.77V)
C6 (2.05V)
<2.05>
Z2 RLI2Z006M-T
3 2 1 4
0.01
<0V> (0V)
<5.45V><2.07V> (5.77V) (2.06V)
R24
270
<0.02V> (0.02V)
50V1
C22
<4.35V> (1.13V)
2.06V> 2.06V)
STRQ
REG
Vcc
IF & MPX IC (TUNER)
LA1833NMNTLM
SD
ST
1
2
3
4
5
6
7
8
9
10
11
12
50V0.47
50V1
C21
C23
X2
(1A) 7.5V R31 68 SD A B
2.7K
R22
6
5
0.01
C29
C48
C47
C49
0.1
DO/ST
C
15V
D
TO MAIN CIRCUIT (1B) ON SCHEMATIC DIAGRAM-7
6.3V100
R26
1.5K R25
1000P
R27
470
470
(2A) C24 100P CL DO/ST DI L ch CE
R32 R33 10K
a b c d e f
R ch
1K
TO MAIN CIRCUIT (2B) ON SCHEMATIC DIAGRAM-7
STEREO
SD