20.3. (B) Main (Tuner) Circuit
3
1
2
1
3
2
1
2
3
5
6
4
MAIN (TUNER) CIRCUIT
SCHEMATIC DIAGRAM - 9
C2647
1000P
JK2601
IC2602
LC72131MDTRM
PLL FREQUENCY SYNTHESIZER
IC2601
LA1833NMNTLM
FM/AM IF AMP
DET/AM OSC MIX/FM MPX
CF2601
J0B1075AA014
X2603
H0H720400005
D2601
B0BC5R000009
Q2606
B1GCCFJJ0016
TUNER 15V
SUPPLY SWITCH
R2634 470
R2635 1K
Q2601
B1AABC000003
FM IF AMP
+7.5V_T
TU_SD
DO/ST
15V
TGND
PLLCK
PLLDA
TUL
CE_T
TUNR
DO/ST
CE_T
PLLDA
PLLCK
DO/ST
TU_SD
C3603
0.01
C3604
1000P
R3604
1K
R3606
470K
R3607
330
R3601
0
R3605
470
C2601
0.01
C3602
16V10
R3603
270
TUNER PACK CIRCUIT
C3607
0.047
R3610
1K
R3612
100K
C3608
8P
C2636
1000P
R3614
5.6K
R2652
0
C3610
0.01
R2638
3.3K
R2630
10K
C2634
27P
C2633
27P
C2612
0.01
R3615
560
R3616
1K
C3611
50V4.7
R3613
10K
C2625
16V22
C2632 1000P
C2630 6.3V100
R2651
82
C2613 1000P
R3619
3.3K
R3611
390
R2628
82
R3617
47K
R3618
3.3K
C2627
16V22
Z2602
G2BAD0000003
C2626
1
C3606
0.01
C2614
50V3.3
C3609
1000P
C2615 50V4.7
C2616 0.033
R3620
47K
R2643
22K
C2638
0.01
R3623
68K
C2620
16V10
R2621
22K
R3602 4.7K
C2639 50V4.7
C2619
680P
C2618 0.01
C2617
0.01
C2642
50V1
R2642
6.8K
C2641
50V1
R2641
6.8K
R2626
1K
R3625
470
R2629 27K
R2627
470
C2624
100P
R2632
10K
C2648
0.01
R3624
33
X2602
H3F1065A0002
C2622 50V1
R3622 2.7K
C2621
50V0.47
R2631
120
R2644
120
R2633
1K
C2629
6.3V100
C2649
0.1
C2623
50V1
R2645
5.6K
C2643
6800P
C2644
6800P
R2646
5.6K
TO
MAIN
CIRCUIT
(1B) ON
SCHEMATIC
DIAGRAM - 15
1A
1
2
3
4
CF2602
J0B1075AA014
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
AM LOOP ANT
AM EXT
ANT
UNBALANCED
75 OHM
FM EXT
ANT
GND
C2637
3300P
C2631
150P
: FM/AM SIGNAL LINE
: FM SIGNAL LINE
: FM OSC SIGNAL LINE
: AM SIGNAL LINE
: AM OSC SIGNAL LINE
A
B
C
D
E
F
G
H
I
J
W2919
0
1
2
3
4
6
1
2
3
4
5
7
6
8
5.6P
2SK544
100K
1000P
220
100K
180P
2.2P
1.2U
680K
3.3P
18P
2SC2786M
390
0.47U
1000P
390
680K
5.6P
2SC2787FL1TA
2SC1675l1l2
2.2P
390
560K
4.7P
2.2P
2.7K
100K
1
2
3
4
21
22
23
24
5
20
6
19
7
18
8
17
9
16
10
15
11
14
12
13
1
2
19
20
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
88
SA-VK825DEE
Summary of Contents for SA-VK825DEE
Page 10: ...9 Operation Procedures 10 SA VK825DEE ...
Page 11: ...11 SA VK825DEE ...
Page 12: ...10 Disc information 12 SA VK825DEE ...
Page 13: ...13 SA VK825DEE ...
Page 16: ...16 SA VK825DEE ...
Page 40: ...40 SA VK825DEE ...
Page 43: ...43 SA VK825DEE ...
Page 44: ...44 SA VK825DEE ...
Page 46: ...46 SA VK825DEE ...
Page 47: ...47 SA VK825DEE ...
Page 48: ...48 SA VK825DEE ...
Page 49: ...49 SA VK825DEE ...
Page 50: ...50 SA VK825DEE ...
Page 51: ...51 SA VK825DEE ...
Page 52: ...52 SA VK825DEE ...
Page 53: ...53 SA VK825DEE ...
Page 54: ...54 SA VK825DEE ...
Page 55: ...55 SA VK825DEE ...
Page 56: ...56 SA VK825DEE ...
Page 66: ...17 3 1 Cassette Deck Section 17 3 2 Adjustment Point 17 3 Alignment Points 66 SA VK825DEE ...
Page 78: ...19 Voltage Measurement This section is not available at time of issue 78 SA VK825DEE ...
Page 121: ...B0ACCK000005 MA2J72800L Cathode Anode Ca A B0JAPG000019 A Ca Cathode Anode 121 SA VK825DEE ...
Page 125: ...25 1 Deck Mechanism RAA3413 S 25 1 1 Deck Mechanism Parts Location 125 SA VK825DEE ...
Page 126: ...126 SA VK825DEE ...
Page 128: ...25 2 DVD Loading Mechanism 25 2 1 DVD Loading Mechanism Parts Location 128 SA VK825DEE ...
Page 129: ...129 SA VK825DEE ...
Page 131: ...25 3 Cabinet 25 3 1 Cabinet Parts Location 131 SA VK825DEE ...
Page 132: ...132 SA VK825DEE ...
Page 133: ...133 SA VK825DEE ...
Page 148: ...148 SA VK825DEE ...