Sharp CD-CH1500 Service Manual page 28

CD-CH1500
A
1
C202
220P
R202
1K
B
L-CH
C
1
A_GND2
2
R-CH
3
A_GND
4
A_GND
5
A_+10V
+B
6
A_+10V
+B
7
CD_GND
8
CD_GND
9
CD_+B
10
CD_+B
11
M_GND
12
M_GND
13
M_10V
+B
14
M_10V
15
D
FAN_CTL
1
SP_DET
2
SP_RLY
3
UN_SW 5V
4
D_GND
5
D_GND
6
AC_RLY CTL
7
-8V
-B
8
E
A_+10V
A
F
A_GND
B
M_+10V
C
BIAS_GND
D
+B
G
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 13.
1
IC201
STK40271(2Ch)
Ch1
POWER AMP.
+Vcc
2 3 4 5 6 7 8
R220
0.22
R216
(2W)
C210
R230
22K
C206 100/50
0.22(2W)
15P
C224
FR214
10/50
R206 R210
100(1/4W)
56K 1K
R224 R828
Fusible
0.1(1W) 22K
R204
820
R232
1K
C204
47/50
C216
0.022
R226
10K
0V
Q202
KTC3199 GR
+B
C214
IC203
0.022
KIA4558P
OPE AMP.
R222
4.7K
0V
R218
C212
2
R212
18K
0.15(ML) C218
18K
0V
100P(CH)
3
C208
C217
0.15
C211
100P
C207
0.15(ML)
0V
0.15 (CH)
5
R211
R217 R221
0V
18K 4.7K
18K
6
R235
R236
C213
0.022 1.8K 1.8K
C219 C220
10/50 10/50
A_GND2
R234
C222
100K
0.015(ML)
R233
+B
100K
+B
C221
0.015(ML)
+B
+B
-B
+B
+B
+B
VOLTAGE
Q805
REGULATOR
KTC2026
11.3V 17V
+B
C807
0.047
R806
(ML)
22K LED801
K5052UL
10V
+B
C814
R807
C815
22K 47/25
0.1
KIA7810AP
VOLTAGE
REGULATOR
VOLTAGE
Q809
REGULATOR
2SD2012
17V +B
8.6V
+B
17V
9.2V
Q810
KTC3199 GR
R821
R803 R820
470
22K 470
C839
C840
100/16
0.022
-B
2
Figure 28 SCHEMATIC DIAGRAM (9/11)
Ch2
–Vcc
9 10 11 12 13 14 15
R229
C201
0.22(2W)
220P
C209
100/50
FR213 100(1/4W)
C223
C203
Fusible
10/50
47/50
D205
DS1SS133
R829 R223
22K 0.1(1W) D201
DS1SS133
R231
1K
4.6V
0V
R225
10K
Q201
KTC3199 GR
-B
R277
330
8.4V +B
C249
8
47/25
0V
–
1
+
R240
C228
1K
2.2/50
C227
R239
2.2/50
1K
+
7
–
0V
R241
4
R242
68K
-8.2V
-B 68K
C248
C247
47/50 0.022
R238
C226
68K
220P(CH)
R237 C225
68K 220P(CH)
+B
Q813
KRA107M
Q812
2 3
KRA107M
-B
2 3
1
C844
1
3.3/50
R811
3.3(1/2W)
+B
R836
270
C817
6800/25
17V
IC802
3 1
2
C816
0.1
IC802
C819
R837
R822 470/25
-B
3.3(1/2W)
1.5K
R813
DZ803
1.5K
MTZJ9.1B
C820
R830
0.047
100
(ML)
DZ804
C821
MTZJ10B
100/25
C822
10/50
3 4
– 28 –
Ch1
1 2 3 4
C232 C238
220P C236 100/50
15P
R244
1K
R201 FR252
1K
100(1/4W)
R248 R250
56K
1K Fusible
R262
R246
56K
4.6V 0V 820
C234
Q206
1/50
0V
KTC3199 GR
C251
47/50
R278
56K
+B
+B
+B
1
1 1 1
-B -B
2 2
2 2
3 3 3 3
4 4 4 4
+B
+B
5
5 5 5
6 6
6 6
Q806
KTA1046 Y
-9V
VOLTAGE
REGULATOR
-B
5
IC202
STK40204(2Ch)
POWER AMP.
+Vcc
–Vcc
11
5 6 7 8 9 10
R215
22K
C242 C241
10/50
10/50
R256
R260
R298
0.1(1W)
R297
R2
1K
C240
22K
22K
0.1(
0.022
C23
0.02
R258 0V
10K Q204
R2
KTC3199 GR
10
+B
+B
+B
R279
22K
C252
2200/50
1 2
1 2
1 2
+B
R834
56
R835
56
D802
DS1N
+B
6