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17.3. (B) Main (Tuner) Circuit
SCHEMATIC DIAGRAM - 2
: +B SIGNAL LINE
: FM/AM SIGNAL LINE
MAIN(TUNER) CIRCUIT
TUNER PACK CIRCUIT
Q1
B1CECC000003
2.2P
5.6P
FM EXT
ANT
Q1
1
1
1.2U
75 OHM
2
2
GND
100K 1000P
100K
180P
3
3
AM LOOP ANT
4
AM EXT
390
4
Q2
220
100K
ANT
JK2601
B1AAAC000016
560K
5
4.7P
Q3
Q3,Q4
B1AAAC000015
2.2P
2.2P
D2602
C2636
B0CDBB000015
1000P
L2601
L2602
R2619
G2A411C00001
G2BPC0000016
3.3K
R2612
C2608
R2610
100K
8P
C2607
1K
0.047
R2611
390
C2625
16V22
D2601
C2630
C2632
C2611
B0BC5R000009
6.3V100
1000P
50V4.7
R2614
5.6K
C2633
C2612
R2616
12P
0.01
1K
20
19
18
17
16
15
14
13
C2610
IC2602
0.01
C1CB00001937
PLL FREQUENCY SYNTHESIZER
R2652
0
1
2
3
4
5
6
7
8
C2634
12P
R2638
3.3K
R2630
10K
: FM SIGNAL LINE
: AM SIGNAL LINE
: FM OSC SIGNAL LINE
: AM OSC SIGNAL LINE
R2604
Q2606
1K
C2603
R2607
0.01
330
CF2601
CF2602
J0B1075AA014
J0B1075AA014
Q2
0.47U
3
1
7
1
3
R2606
R2601
C2604
1000P
470K
0
390
R2608
2
2
R2605
470K
470
Q2601
Q2601
1000P
B1AABC000003
FM IF AMP
6
Q2606
R2621
R2603
B1GCCFJJ0016
390
C2601
C2602
0.01
16V10
270
C2620
22K
TUNER 15V
16V10
SUPPLY SWITCH
C2638
5.6P
680K
8
C2910
0.01
R2643
680P
22K
Q4
R2620
R2646
47K
C2617
100K
C2644
0.01
6800P
R2642
6.8K
C2609
C2614
C2642
1000P
R2641
50V3.3
50V1
6.8K
IC2601
C2641
C1BB00000962
50V1
FM/AM IF AMP
DET/AM OSC MIX/
R2645
FM MPX
100K
C2643
6800P
24
23
22
21
20
19
18
17
16
15
14
13
R2618
3.3K
IC2601
1
2
3
4
5
6
7
8
9
10
11
12
C2647
1000P
C2621
C2606
C2627
C2626
1000P
50V0.47
16V22
C2648
1
0.01
C2623
3
R2626
50V1
1K
2
4
1
R2644
120
5
6
Z2602
G2BAD0000003
R2631
120
R2628
C2649
C2629
82
0.1
6.3V100
R2617
47K
R2629
27K
C2624
100P
12
11
TGND
R2632
15V
10K
R2633
DO/ST
1K
SD
+7.5V
9
10
RCH
CE
LCH
PLLDA
DO/ST
PLLCLK
SA-AK240GCP MAIN(TUNER) CIRCUIT
TO
MAIN
CIRCUIT
(2A) ON
SCHEMATIC
DIAGRAM-3
1A
TO
MAIN
CIRCUIT
(2B) ON
SCHEMATIC
DIAGRAM-3
1B
61
SA-AK240GCP
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