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17.3. (B) Main (Tuner) Circuit
SCHEMATIC DIAGRAM - 2
MAIN (TUNER) CIRCUIT
Z2620
ENV17290G1Y
FM EXT
2SK238
22P
ANT
15P
1
1
1P
8P
22
75 OHM
2
3
2
GND
4
3
AM LOOP
ANT
AM EXT
4
5
ANT
JK2601
D2602
B0CDBB000015
L2601
G2A411C00001
G2BPC0000016
R2612
R2610
100K
C2607
1K
0.047
D2601
C2630
C2632
B0BC5R000009
6.3V100
1000P
R2614
5.6K
C2633
C2612
27P
0.01
20
19
C2610
0.01
R2652
0
1
2
C2634
27P
R2638
3.3K
R2630
10K
: +B SIGNAL LINE
: FM SIGNAL LINE
: FM/AM SIGNAL LINE
: FM OSC SIGNAL LINE
C2603
R2607
0.01
2SC2620
CF2601
330
4P
J0B1075A0086
IFT
7
1
3
C2604
R2606
1000P
470K
2
R2605
470
Q2601
100uF
0.022
16V
100
6
R2621
C2601
C2602
0.01
16V100
2SK360
8P
15P
R2643
8
8P
2P
33P
C2910
680P
R2620
47K
C2636
C2609
1000P
C2614
1000P
50V3.3
IC2601
C1BB00000962
FM/AM IF AMP
DET/AM OSC MIX/
FM MPX
L2602
R2619
12K
C2608
8P
24
23
22
21
20
19
18
R2618
3.3K
IC2601
5
6
7
1
2
3
4
C2647
1000P
C2606
C2627
C2626
0.01
16V22
1
C2648
0.01
3
R2626
1K
2
4
1
5
6
Z2602
G2BAD0000003
R2611
390
R2628
C2629
C2625
82
16V22
6.3V100
R2617
68K
C2611
R2629
27K
50V4.7
C2624
100P
R2616
1K
18
17
16
15
14
13
12
11
IC2602
R2632
C1CB00001937
10K
R2633
PLL FREQUENCY SYNTHESIZER
1K
3
4
5
6
7
8
9
10
SA-AK340E/EB/EG MAIN (TUNER) CIRCUIT
: AM SIGNAL LINE
: AM OSC SIGNAL LINE
R2604
Q2606
10K
CF2602
J0B1075A0086
1
3
Q2606
B1GCCFJJ0016
2
TUNER 15V
SUPPLY SWITCH
Q2601
B1AABC000003
FM IF AMP
R2603
Q2610
100
C2620
22K
2SC3311ARA
16V10
SWITCH
C2638
0.01
Q2610
22K
R2639
22K
R2640
22K
R2646
100K
C2644
R2642
4700P
6.8K
C2642
50V1
R2641
6.8K
C2641
50V1
R2645
100K
17
16
15
14
13
C2643
4700P
8
9
10
1
1
12
C2621
50V0.47
C2623
50V1
R2644
120
R2631
120
C2649
0.1
TGND
15V
TO
MAIN
DET_OUT
CIRCUIT
DO/ST
(2A) ON
SD
SCHEMATIC
+7.5V
DIAGRAM-3
1A
RCH
CE
TO
MAIN
LCH
CIRCUIT
PLLDA
(2B) ON
DO/ST
SCHEMATIC
PLLCLK
DIAGRAM-3
1B
61
SA-AK340E / SA-AK340EB / SA-AK340EG
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