Sharp CD-C470, Руководство по обслуживанию

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CD-C407W,CP-C407
– 9 –
Figure 9 SCHEMATIC DIAGRAM (6/9)
7
8 9 10 11 12
8 9
10 11 12
13 14 15
16
17
31
30
32
33
13
17
36
29
21
+B
+B
+B
37
38
39
23
24
BIAS OSC
P12 4 - A
TO DISPLAY
PWB
P6 4 - G
TO MAIN SECTION
REC MUTING
P12 4 - A
TO DISPLAY
SECTION
P6 1 - E
TO MAIN
SECTION
PLAYBACK AND RECORD/
PLAYBACK AMP.
11.9V
(0V)
0.7V
0V
0V
REC MUTING
(0V)
0.7V
0V
0V
0V
(0.7V)
0V
5V
(0V)
(0.4V)
0V
(0.9V)
0V
(6.5V)
0V
REC
T1/T2
GND(D)
+12V
GND(A)
PLAYL
PLAYR
RECL
RECR
T1 PLAY
T2 PLAY
GND(
µ
-COM)
GND(MECHA)
+12V (MECHA)
56K
HIGH=CHROME
56K
GND
ALC ALC
VCC
RIPPLE
Nor/
CrO2
–
–
+
+
+B
+B +B
REC_SW
2
1
2
1
R257
150
R235
2.2K
R247
10K
R259
100K
Q211
KTC3199 GR
C231
0.056
(ML)
Q213
KTC3199 GR
R245
10K
R249
10K
C235 0.0033
R236
560
C237
1/50
R248
10K
C229
22/16
Q210
KTC3199 GR
C240 22/16
C241 100/10
C238
1/50
IC201
AN7345K
R239
100
R243 10K
R240 100
R256
470
R254
10K
R230
22K
C236 0.0033
R255
1K
R258
100K
Q212
KTC3203 Y
C232
0.056
(ML)
R237 560
R244 10K
C239 0.082 (ML)
C227 0.001
R250
47K
R253
12
C230
22/16
C243
0.027
(ML)
L203 330
µ
H
R252
100K
C244
47/25
C242
0.0039(ML)
R246
10K
R238
10K
R260
6.8K
C222
22/16
R266 100K
D205
1SS119
C265 4.7/50
R265
10K
R251
6.8K
SW608
TAPE 1
PLAY
CNP204
CNS204