Sharp CD-C1W Service Manual page 28

CD-C1W,CP-C1W
A
B
BU4066BC
SRS MODE
2
SELECTOR
1
Q463
KRC107 M
3
C
D
E
F
G
MAIN PWB-B(4/4)
RECORD SIGNAL
H
NOTES ON SCHEMATIC DIAGRAM can be found on page 16.
1
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0V
3
Q451
1
KRA107 M
1.6V
2 0V
3 R462
0V
1 100K
-8.3V
Q452
KRC107 M
-8.3V 2
R461
100K
C484
2.2/50
C483
2.2/50
5 3 6 9 2
12 10 13
1.6V
14
47/25
C485
-8.3V
7
IC452
4 8 1
11
R456
100K
R455
100K
R459
100K
C481
C482
2.2/50
2.2/50
R460
100K
C471
100/16
C453
2.2/50
R472
100K
R471
100K
2
1
Q464
3 KRC107 M
2 3
Figure 28 SCHEMATIC DIAGRAM (7/15)
R467
270
R477
270
C487
47/25
ZD452
MTZJ8.2C
Q465
G
2SK2541 0V
5.5V S
D
R493
5.5V
1K G 0V
D
5.5V S
R498 Q466
5.5V
4.7K 2SK2541
Q467
IC451
2SK2541
SRS5250AS1
0V
15 CR2
GND 14
CR3
16 CR1
13
R468
1K
5.5V
CR4
17 12
R_OUT C472
0.33/50
5.5V
5.5V
S_OUT
18 L_OUT 11
R469
1K 5.5V
5.5V
S_IN
19 Vref 10
20 C6 9
CL1
SRS
C5 8
21 CL2
C4
22 CL3 7
23 C3 6
CL4
5.5V
C2 5
24
C_IN
5.5V
25 C1 4
C_OUT
R487 R488
100K 4.7K 5.5V
PN_OUT 3
26 MODE
0V
5.5V
5.5V
PN_IN 2
27
L_IN
R482
5.5V
33K
28 VCC 1
R_IN
11.0V
+B
Q461
KTC3203 Y
R475
2.2K
R474
10K
R473
10K
2
1
3
2
+B
–B
56 57 58 59 60 61 62 55 63
TO MAIN SECTION
P23 12-C
4
– 28 –
+B
–B
D401
1SS133
D402
1SS133
D403
1SS133
G
S
D
R491
1.5K
R492
4.7K
R490
4.7K
C461
0.0047
R481
3.9K
C460
0.47/50
C458
0.047 (ML)
C457
100/16
C456
100/16
R470
10K
1
3
2
1
Q458
3
KRC107 M
+B
–B
64 65
5 6