18.2. (B) Main (Tuner) Circuit
MAIN(TUNER) CIRCUIT
SCHEMATIC DIAGRAM - 2
C2647
1000P
JK2601
IC2602
C1CB00001937
PLL FREQUENCY SYNTHESIZER
IC2601
C1BB00000962
FM/AM IF AMP
DET/AM OSC MIX/
FM MPX
CF2601
J0B1075AA014
J0B1075AA014
X2603
H0H720400007
D2601
B0BC5R000009
Q2606
Q2606
B1GCCFJJ0016
TUNER 15V
SUPPLY SWITCH
R2634
470
R2635
1K
Q2601
Q2601
B1AABC000003
FM IF AMP
+7.5V
SD
DO/ST
15V
TGND
PLLCLK
DO/ST
PLLDA
LCH
CE
RCH
DO/ST
CE
PLLDA
PLLCLK
DO/ST
SD
C2603
0.01
C2604
1000P
R2604
1K
R2606
470K
R2607
330
R2601
R2608
470K
0
R2605
470
C2601
0.01
C2602
16V10
R2603
270
TUNER PACK CIRCUIT
C2607
0.047
R2610
1K
R2612
100K
C2608
8P
C2636
1000P
R2614
5.6K
R2652
0
C2610
0.01
TO
MAIN
CIRCUIT
(2B) ON
SCHEMATIC
DIAGRAM-3
R2638
3.3K
R2630
10K
C2634
12P
C2633
12P
C2612
0.01
R2615 560
R2616
1K
C2611
50V4.7
R2613 10K
C2625
16V22
C2632
1000P
C2630
6.3V100
R2651
82
C2613 1000P
R2619
3.3K
R2611
390
R2628
82
R2617
47K
R2618
3.3K
C2627
16V22
Z2602
G2BAD0000003
C2626
1
C2606
1000P
C2614
50V3.3
C2609
1000P
C2615 50V4.7
C2616 0.033
R2620
47K
R2643
22K
C2638
0.01
R2623 68K
C2620
16V10
R2621
22K
R2602 4.7K
C2639 50V4.7
C2618 0.01
C2617
0.01
C2642
50V1
R2642
6.8K
C2641
50V1
R2641
6.8K
R2626
1K
R2625 470
R2629
27K
R2627 470
C2624
100P
R2632
10K
C2648
0.01
R2624
33
X2602
H3F1065A0002
C2622 50V1
R2622 2.7K
C2621
50V0.47
R2631
120
R2644
120
R2633
W2919
0
1K
C2629
6.3V100
C2649
0.1
C2623
50V1
R2645
100K
C2643
6800P
C2644
6800P
R2646
100K
TO
MAIN
CIRCUIT
(2A) ON
SCHEMATIC
DIAGRAM-3
1A
1B
1
2
3
4
CF2602
R2636
1K
R2637
1K
L2601
G2A411C00001
L2602
G2BPC0000016
D2602
B0CDBB000015
: +B SIGNAL LINE
STRQ
SDC
LW
AIN
PD
AOUT
VDD
FMIN
AMIN
IFIN
MONO
FM
AM
CE
DI
CL
DO
VSS
XOUT
XIN
IC2601
PILOT
OUT
MPX
IN
PILOT
IN
DET
OUT
ST
AM
OUT
RCH
LCH
MONO
FM/AM
OSC
AFC
AM
RF
IN
AGC
AM
MIX
OUT
REG
AM
IF
IN
GND
SD
FM
DET
VCC
STRQ
OSC
OUT
FM
IF
IN
1
2
3
4
21
22
23
24
5
20
6
19
7
18
8
17
9
16
10
15
11
14
12
13
AM LOOP ANT
AM EXT
ANT
75 OHM
FM EXT
ANT
GND
C2637
C2631
150P
3300P
1
2
19
20
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
1
2
3
5
6
4
1
3
2
1
3
2
1
2
3
4
5
7
6
8
5.6P
100K
1000P
220
100K
180P
2.2P
1.2U
680K
3.3P
18P
390
0.47U
1000P
390
680K
5.6P
A
2.2P
390
560K
4.7P
2.2P
2.7K
100K
: FM/AM SIGNAL LINE
: FM SIGNAL LINE
: FM OSC SIGNAL LINE
: AM SIGNAL LINE
: AM OSC SIGNAL LINE
Q1
Q2
Q4
Q3
Q1
B1CECC000003
Q2
B1AAAC000016
Q3,Q4
B1AAAC000015
SA-AK340P / SA-AK340PC
59
Summary of Contents for SA-AK340P
Page 9: ...6 Accessories Remote Control FM Indoor Antenna AC Cord AM Loop Antenna 9 SA AK340P SA AK340PC ...
Page 10: ...7 Operation Procedures 10 SA AK340P SA AK340PC ...
Page 11: ...11 SA AK340P SA AK340PC ...
Page 23: ...10 3 Main Parts Location 23 SA AK340P SA AK340PC ...
Page 34: ...34 SA AK340P SA AK340PC ...
Page 40: ...12 2 Checking and Repairing of Transformer P C B 40 SA AK340P SA AK340PC ...
Page 41: ...12 3 Checking and Repairing of Panel Deck Deck Mechanism P C B 41 SA AK340P SA AK340PC ...
Page 42: ...12 4 Checking and Repairing of Power P C B 42 SA AK340P SA AK340PC ...
Page 47: ...14 2 Power P C B and Transformer P C B 47 SA AK340P SA AK340PC ...
Page 48: ...14 3 Waveform Chart 48 SA AK340P SA AK340PC ...
Page 56: ...56 SA AK340P SA AK340PC ...
Page 58: ...SA AK340P SA AK340PC 58 ...
Page 60: ...SA AK340P SA AK340PC 60 ...
Page 66: ...SA AK340P SA AK340PC 66 ...
Page 68: ...SA AK340P SA AK340PC 68 ...
Page 72: ...SA AK340P SA AK340PC 72 ...
Page 80: ...SA AK340P SA AK340PC 80 ...
Page 84: ...84 SA AK340P SA AK340PC ...
Page 85: ...21 Exploded Views 21 1 Cabinet Parts Location SA AK340P SA AK340PC 85 ...
Page 86: ...SA AK340P SA AK340PC 86 ...
Page 87: ...SA AK340P SA AK340PC 87 ...