TO
POWER
CIRCUIT
(CN5102)
IN SCHEMATIC
DIAGRAM-9
15
16
17
18
19
20
21
22
23
24
25
26
27
28
A
B
D
E
F
H
G
C
MAIN CIRCUIT
SCHEMATIC DIAGRAM - 3
SA-
AK750PL MAIN CIRCUIT
1/4
2/4
3/4
4/4
6
7
5
2
4
3
8
1
TO MAIN SECTION (2/4)
TO MAIN SECTION (4/4)
C30
C1
C2
C3
C4
C5
C6
C7
C8
C9
F_HOP
SUBW
FAN
+15V
ASP_GND
A_GND
HIGH_R-IN
HIGH_L-IN
LOW_R-IN
LOW_L-IN
T-GND
MUTE-D-AMP
R2334
R2434
R3700
C3700
R3702
C3704 R3706
R3708
C3706
R3701
C3701
C3708
SMT OP AMP IC
R2428
R2426
R2326
R2328
R3709
C3707
C2943
R3704
R3707
IC3700
IC3700
CN2809
C3709
C3705
R2316
R2317
R2331
C2333
R2433
R2333
R2335
C2331
R2323
C2323
C2325
R2431
C2433
R2321
R2318
R2435
R2329
C2321
Q2317
C2443
R2456
R2356
C2343
R2416
R2423
C2423
R2421
C2425
R2418
Q2417
R2429
C2421
R2417
K3301
0
C2561
R2588
C2589
R2565
R2562
R2559
C2553
R2560
R2558
Q2554
D2551
D2551,D2552
B0BC2R4A0006
R2556
D2552
R2722
C2722
R2564
R2327
C2324
C2424 R2427
C2554
R2721
C2731
R2731
C2551
R2561
C2552
C2721
R2555
R2568
R2557
Q2553
R2567
Q2551
Q2552
C2558
R2563
C2555
Q2555
C2556
C2560
R2566
0
0
1k
1u
10K
1u
68k
68k
47p
68k
1u
10p
15k
0
0
15k
68k
47p
50V2.2
10K
1k
10p
1u
2.2k
10k
0
1u
15k
15k
1k
6800p
39k
0.01
50V1
0
1u
0
100k
6800P
C2431
1k
8.2K
0.22
0.47u
180k
180k
0.47u
2.2k
39k
0.01
0
50V1
100k
8.2K
0.22
18k
1u
180k
0.47u
220k
47k
18k
0.01u
3.3k
3.3k
1k
1k
0.01u
220k
12k
1u
1u
12k
1u
1k
50V100
100
10
27k
100p
100
1k
100k
1k
18k
0.15u
47k
100p
0.01u
1u
2.2k
REC_L
REF_L
A_GND
REF_R
A_GND
+15V
REC_R
SW_LV2
SW_LV1
T_GND
MUTE_D_AMP
+15V
FAN
F_HOP
A_GND
C0ABBB000244
7
9
10
8
4
5
1
3
2
6
12
11
2 1
7 8
5
4 3
6
Q2317,Q2417
B1ABCF000176
MUTING SWITCH
IC2810
IC2810
COABBB000244
SMT OP-AMP IC
Q2551,Q2552
B1GDCFJJ0047
SWITCH SUPPLY SWITCH
Q2553,Q2554
B1ABCF000176
SUBWOOFER LEVEL
CONTROL SWITCH
Q2555
B1ABCF000176
SUBW MUTING SWITCH
R3703
68K
R3705
68K
C3711
R3720
1u
0
MIC_MIX
K3703
0
K3705
0
C3710
C3712
0.1u
100u
R3712
47k
: +B SIGNAL LINE
: MAIN SIGNAL LINE
: MIC SIGNAL LINE
: TAPE RECORD SIGNAL LINE
W587
0
W673
0
W654
0
R3711
47K
W586
0
SA-AK750PL
69
Summary of Contents for SA-AK750PL
Page 8: ...8 SA AK750PL ...
Page 11: ...6 Accessories Remote Control FM Antenna Wire AC Cord AM Loop Antenna 11 SA AK750PL ...
Page 13: ...13 SA AK750PL ...
Page 15: ...With reference to page 15 of the operating instruction manual 15 SA AK750PL ...
Page 16: ...With reference to page 16 of the operating instruction manual 16 SA AK750PL ...
Page 27: ...10 3 Main Parts Location 27 SA AK750PL ...
Page 39: ...10 17 1 Replacement of Pinch Roller and Head Block 39 SA AK750PL ...
Page 40: ...10 17 2 Replacement of Motor Capstan Belt A Capstan Belt B and Winding Belt 40 SA AK750PL ...
Page 46: ...12 4 Checking and Repairing of Power P C B 46 SA AK750PL ...
Page 48: ...48 SA AK750PL ...
Page 52: ...15 3 Power P C B Transformer P C B 15 4 Panel P C B 52 SA AK750PL ...
Page 53: ...15 5 Main P C B 53 SA AK750PL ...
Page 54: ...15 6 Deck P C B 15 7 Waveform Chart 54 SA AK750PL ...
Page 56: ...56 SA AK750PL ...
Page 64: ...SA AK750PL 64 ...
Page 66: ...66 SA AK750PL ...
Page 86: ...SA AK750PL 86 ...
Page 91: ...23 Exploded Views 23 1 Cabinet Parts Location SA AK750PL 91 ...
Page 92: ...SA AK750PL 92 ...
Page 93: ...23 2 Deck Mechanism Parts Location RAA4403 S SA AK750PL 93 ...
Page 94: ...23 3 Packaging SA AK750PL 94 ...