CD-C423H (serv.man4). Schematic diagram and PWB layouts - Sharp Audio Service Manual (repair manual). Page 9

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CD-C423H
Figure 29 SCHEMATIC DIAGRAM (3/10)
7
8
9
10
11
12
TO TUNER PWB
P37 9-G
CNS303
C560
0.0033
R559
10K
C539
1/50
R535
56
C451
1/50
D401
1SS133
+B
+B
C452
1/50
R567
4.7K
Q576
KTC3199 GR
R576
10K
R405
1K
R403
1K
R407
1K
C407
0.047
(ML)
R408
1K
R406
1K
R404
1K
R402
1K
C426 0.18
C424 0.056 (ML)
R431
4.7K
R432
4.7K
C455
2.2/50
C415
22/16
C427 0.18
C453
0.022
R420
100K
R418
15K
C417
100P
C586
0.0022
C585
0.0022
C458
0.001
C446
10/16
R412
39K
R411
39K
C454
2.2/50
R421
100K
R414
1.5K
R413
1.5K
R401
1K
C403
0.047 (ML)
C401
0.047
(ML)
C405
0.047 (ML)
R427 1K
R425 1K
C406
0.047 (ML)
C402
0.047
(ML)
C412
390P
C456
220P
C411
390P
C457
220P
IC401
LC75394E
AUDIO PROCESSOR
C408
0.047
(ML)
C404
0.047
(ML)
C450
100/16
C432 0.0039 (ML)
R415
3.3K
C448
22/16
C444
100P
R426 1K
C442
0.0027
C443
100P
R417
15K
R416
3.3K
C447
22/16
C431 0.0039 (ML)
C429 0.33
C430 0.033
C425 0.18
C441
0.0027
C428 0.18
C445
10/16
C423 0.056 (ML)
C449
22/16
C416
22/16
C418
100P
SO401
VIDEO/AUX
C421
0.33/50
C422
0.33/50
CNP502
CNP501
R585
2.2K
C583
100/16
Q584
KTC3199 GR
C531
47/16
R519
1K
C519
330P
C532
47/16
Q565
KRC104 M
R537
5.6K
R539
4.7K
C561
1/50
C557
0.068
R557
56
C544
3.3/25
L501
330
µ
H
Q571
KTC3203 Y
R571
12
C562 1/50
R512
3.3K
R518
10K
C555
22/16
C570
0.0039
(ML)
R513
2.2K
R514
2.2K
R517
10K
C543
0.022
C566
0.022
R540
4.7K
R568
150
(1/2W)
R552
4.7K
R562
1K
C572
0.027
(ML)
R578
100K
Q511
2SC1845 F
C502
0.001
C503 330P
R516
10K
R511
3.3K
C571
47/16
C513 0.001
C514 0.001
C534
0.018
R565
1K
Q513
2SC1845 F
Q516
KTC3199 GR
C512
180P
C565
220/10
R531
100K
C536
560P
C538
0.015
R534 3.9K
C540
1/50
R563
470
C520
330P
R520
1K
C504
330P
R584
10K
R510
10K
Q575
KTC3199 GR
Q583
KRC104 M
C581
0.047
R502
1K
R566
4.7K
R555
560
C533
0.018
C537
0.015
C535
560P
C564
22/16
R541
22K
Q512
2SC1845 F
R558
56
C558
0.068
Q581
KTA1266 GR
IC501
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP
R538
5.6K
R581
10K
R536
56
Q514
2SC1845 F
R501
1K
R582
10K
R583
10K
Q515
KTC3199 GR
Q566
KTA1266 GR
R542
68K
R570
47K
R577
100K
C501
0.001
C511
180P
C556
22/16
R569
100K
R533
3.9K
R551
4.7K
Q582
KRC104 M
R515
10K
C563
0.082
R553
6.8K
C553
0.001
R560
10K
R575
10K
C554
0.001
R561
10K
R556
560
C559
0.0033
R554
6.8K
R532
100K
7
1
2
3
X
Z
Y
1
2
3
4
5
6
7
8
9
11 10
12
13
14
15
16
48
47
46
45
44
43
42
41
40
38 39
37
36
35
34
33
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
7
6
5
4
3
2
1
3
2
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
6
TAPE_L
1
3
2
3
2
3
2
1
LEFT
RIGHT
LF4C1
LF4C2
LF4C3
REC_L
RF4C3
RF4C2
RF4C1
LFS
NC
L1
NC
RF3C1
RF2C1
RF3C2
RF3C3
LINVIN2
LVref
LTOUT
LTEST
LVRIN
LVROUT
Vref
VDD
RVROUT
RTEST
L4
LF1C1
LSEL0
LF1C3
LF2C1
LF2C2
LF2C3
LF3C1
LF3C2
LF3C3
LF1C2
LINVIN1
R3
NC
NC
R1
R2
VSS
CL
DI
CE
VSS
AVSS
RFS
RVref
RINVIN2
RTOUT
RVRIN
L2
LTIN
R4
RINVIN1
RF1C1
RF1C2
RF1C3
RF2C3
RSEL0
RF2C2
RTIN
L3
GND
REC_R
A_GND
CD_R
CD_L
DO
CE
DI
SD
SM
A+12V
A_GND
TUN_MUTE
1
3
2
4
A_GND
+12V
MAIN_L
MAIN_R
TAPE_R
112K
56K
112K
56K
Hich=CHROME
Hich=T1
Nor/CrO2
RIPPLE
ALC
GND
ALC
Vcc
_L2
_L1
_R1
_R2
SE
ND
ND
ND
1_L
_R
TUN_R
TUN_L
GND(MOTOR)
TO MAIN PWB(3/3)
POWER AMP.
SECTION
P32 2-B
TO MAIN PWB(2/3)
CD SECTION
P31 11-C
12
11
10
9
8
7
6
5
4
3
TO MAIN PWB(3/3)
POWER AMP.
SECTION
P32 2-E
TO MAIN PWB(3/3)
POWER AMP.
SECTION
P32 2-E
–
–
+
+
+
–
+
–
FM SIGNAL
RECORD SIGNAL
PLAYBACK SIGNAL
CD SIGNAL
NP303
Display
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