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SA-AK630EE
16.2. (B) Main (Tuner) Circuit
SCHEMATIC DIAGRAM - 3
MAIN (TUNER) CIRCUIT
ENV17290G1Y
FM EXT
22P
15P
ANT
1
1
1P
2
75 OHM
3
2
GND
4
3
AM LOOP
ANT
AM EXT
4
5
ANT
JK2601
L2601
GNS-A0882DC
R2610
1K
D2601
B0BC5R000009
R2614
5.6K
C2633
12P
C2610
0.01
R2652
0
C2634
12P
2SC2620
2SK238
4P
8P
22
0.022
100
2SK360
8P
8P
D2602
C2636
B0CDBB000015
1000P
L2602
R2619
G2BPC0000016
12K
R2612
C2608
100K
8P
C2607
0.047
R2611
390
C2625
16V22
C2630
C2632
C2611
6.3V100
1000P
50V4.7
C2612
R2616
0.01
1K
20
19
18
15
14
17
16
IC2602
LC72131MDTRM
PLL FREQUENCY SYNTHESIZER
1
2
3
4
5
6
7
R2638
3.3K
R2630
10K
: +B SIGNAL LINE
: FM SIGNAL LINE
: FM/AM SIGNAL LINE
: FM OSC SIGNAL LINE
C2603
0.01
CF2601
J0B1075A0086
IFT
7
1
3
C2604
1000P
2
R2605
100uF
16V
6
C2601
0.01
15P
8
2P
33P
C2619
560P
R2620
47K
C2609
C2614
1000P
50V3.3
IC2601
LA1833NMNTLM
FM/AM IF AMP
DET/AM OSC MIX/
FM MPX
24
23
22
21
R2618
3.3K
1
2
3
4
C2606
C2627
C2626
0.01
16V22
1
3
2
4
1
5
6
Z2602
G2BAD0000003
R2628
82
R2617
68K
R2629
27K
C2624
100P
13
12
11
R2632
10K
8
9
10
64
: AM SIGNAL LINE
: AM OSC SIGNAL LINE
R2604
1K
R2607
330
CF2602
J0B1075A0086
1
3
R2606
470K
2
470
Q2601
R2621
R2603
C2602
270
16V100
C2620
22K
16V10
C2638
0.01
R2643
22K
C2642
50V1
C2641
50V1
20
19
18
17
16
15
14
13
IC2601
5
6
7
8
9
10
11
12
C2647
1000P
C2648
0.01
R2626
1K
C2649
C2629
0.1
6.3V100
R2633
1K
Q2606
Q2606
B1GCCFJJ0016
TUNER 15V
SUPPLY SWITCH
Q2601
B1AABC000003
FM IF AMP
R2646
100K
C2644
R2642
4700P
6.8K
R2641
6.8K
R2645
100K
C2643
4700P
C2621
50V0.47
C2623
50V1
R2644
120
R2631
120
TGND
15V
TO
MAIN
CIRCUIT
DO/ST
(2A) ON
SD
SCHEMATIC
+7.5V
DIAGRAM-8
1A
RCH
CE
TO
MAIN
LCH
CIRCUIT
PLLDA
(2B) ON
DO/ST
SCHEMATIC
PLLCLK
DIAGRAM-8
1B
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