Table of Contents
Advertisement
19.3. (C) Main Circuit
1
2
3
SCHEMATIC DIAGRAM - 3
A
MAIN CIRCUIT
B
C
QR3105,QR3106
B1GBCFGG0030
SWITCH
D
QR3106
QR3105
PL
1
MOTOR_H
2
MO_GND
3
R2111
DECK_AD2
4
2.2K
MOTOR 9V
5
DECK_AD1
6
R2211
+9V
7
PB_L
2.2K
PB_L
8
PB_R
R2112
TO
PB_R
9
E
3.3K
A_GND
DECK CIRCUIT
A_GND
10
(CN1305)
A_GND
11
IN SCHEMATIC
12
REC_IN_L
DIAGRAM-11
REC_IN_R
13
REC_H
14
15
BP
DMT
16
17
DVREF
VREF-GND
18
DGND
19
20
+5V
PHOTO
21
CN2803
F
G
H
4
5
6
: CD SIGNAL
: +B SIGNAL LINE
: TAPE RECORD SIGNAL LINE
W581
0
C2182
1
K3700
0
R2163
56K
56
55
54
53
52
C2112 1u
1
C2212
1u
2
C2122
1u
3
C2222
1u
4
IN-R2
[1] IN-L1
C2132
1u
5
IN-L3
[2] IN-R1
C2232
1u
[3] IN-L2
6
IN-R3
C2152
1u
7
IN-L4
C2252
1u
8
IN-R4
C3102
1u
[12] IN-R6
9
IN-L5
[13] GND
C3103
1u
10
IN-R5
[14] REF-IN
W582
11
IN-L6
0
12
W619
13
C2581
0
16V100
14
C2213
6800P
18
19
C2582
15
16 17
16V100
W579
R3114
R2102
0
3.3K
R3116
3.3K
27K
R2204
C3720
27K
0
W677
R2104
W675
0
R3117
0
27K
R2283
27K
C3721
100k
0
W667
0
C2283
W674
0
0.047u
REC_L
PL
MTR[58]
REC_R
W580
OUT
3
0
2
GND
D2871
D2872
+15V
VCC
1
D2871-D2872
IC2872
B0EAKM000117
R2503
B0ADCC000002
+9V
2.7k
C2503
AGND
1u
R2501
P_GND
330k
DECK_AD2
DECK_AD1
W575
R2504
REC_IN_L
0
100
R2502
REC_IN_R
82k
R2505
DMT A_GND
0
DVREF+
U_GND
REC[59]
C2501
1u
+5V
B1ABCF000176
W661
W656
+3.3V
0
0
CONTROL SWITCH
PHOTO
W592
0
R2203
IC2872
2.2k
REC_L
C0CBAHG000011
R2103
2.2k
VOLTAGE REGULATOR
REC_R
TO MAIN SECTION (3/4)
7
8
9
: TAPE PLAYBACK SIGNAL LINE
: FM/AM/XM SIGNAL LINE
: MAIN SIGNAL LINE
R2173
4.7K
R2172
8.2K
C2181
Q2311,Q2411
1
B1ABGC000005
MUTING SWITCH
C2302
0
C2311
R2311
Q2311
1u
470
51 50
49
48
47
46
45
44
43
IC2803
R2312 R2355
C2342
42
C1BB00001121
10k
270K
1u
41
AUDIO SOUND PROCESSOR
40
A_GND
[42] L-OUT
39
[41] NC
R2412
VCC
38
[40] DATA
10k
[39] CLK
R-OUT
37
IC2803
C2401
0.22u
R2455
C2442
POST-VM-R
36
C2411
270k
1u
C2402
1
1u
[32] MID-R2
T-OUT-R
35
C2272
0.082
[31] MID-R1
BASS-R2
34
Q2411
[30] TRE-R
R2411
C2271
0.15
BASS-R1
33
470
[29] NC
32
31
W583
30
0
29
Q2142,Q2242
B1ABCF000176
20
21 22
23
24
25 26
27 28
C2195
AGC CONTROL SWITCH
R2195
0.47u
10k
R2196
10k
C2194
0.15
W651
W597
0
0
R2194
100k
R2701
1k
R2510
220
C2509
D2191
50V33
Q2511
B0ACCK000005
B1GDCFJJ0047
R2509
MUTING CONTROL
560
D2503
R2511
2.2k
R2512
100k
2
C2507
3
16V0.22u
C2511
1
2.2
W641
R2507
0
100k
R2508
1k
Q2501
W596
W671
LEVEL METER
0
0
71
10
11
12
: AUX/IPOD SIGNAL LINE
IC2804
C0AABB000125
C2705
1u
OP AMP
C2313
R2315
C2315
R2705
R2703
56K
50V22
220K
47P
3.3k
C2314
C2703
W584
10P
470P
0
C2312
4
3
2
1
1u
R2313
100k
IC2804
R2413
100k
C2412
5
6
7
8
1u
C2414
W589
0
R2704
10P
220k
C2413 R2415
C2415
47P 56K
50V22
C2704
C2706
R2706
470P
3.3K
D2241
1u
B0ACCK000005
R2249
R2245
R2145
3.3K
1K
R2146
1K
1K
Q2142
W591
R2149
R2246
D2241
3.3K
1K
0
Q2242
C2245
10
R2247
R2248
W588
W600
100k
6.8k
0
0
W590
0
W669
0
Q2341,Q2441
B1ABGC000005
W670
0
HEADPHONE MUTING
R2347
R2341
R2352
Q2341
1
18
18
R2345
15k
L
R2346
R2344
R2343
R2354
R2353
3.3k
0
18
18
0
C2341
1000P
C2441
1000P
R2446
R2452
3.3k
R
18
R2453
R2447
Q2441
R2445
R2441
0
1
15k
18
R2444
R2443
R2454
0
18
18
1/4
2/4
SA-AK750P/PC
3/4
4/4
SA-AK750P / SA-AK750PC
13
14
C1
TO MAIN SECTION (2/4)
C2
C3
C4
C5
C6
C7
C8
C9
MAIN CIRCUIT
Advertisement
Table of Contents
