Sharp CD-C462 Service Manual page 22

CD-C462/C462C
A
AM LOOP ANT
FM ANT
CNP301
1 1
2 2 FM
BAND PASS
3 3
FILTER
BF301
1 2 3
C302
B
18P
(CH)
R382
82
C309
6.8P
(UJ)
R302
22
C308
0.0047
C
L303 FM BAND COVERAGE (fL)
L302 FM RF (fH)
T351 AM IF
T302 AM BAND COVERAGE (fL)
T302 AM TRACKING (fL)
D
FM SIGNAL
AM SIGNAL
PLAYBACK SIGNAL
RECORD SIGNAL
E
TAPE1
PLAYBACK HEAD
TAPE1_R
C102
1 1
0.001
R-CH
A_GND
2 2
TAPE1_L
L-CH
3 3 C101
F 0.001
CNP101
0V
C106
180P
ERASE HEAD
0V
M_GND
1 1
ERASE
2
2
R-CH
TAPE2_R2
0V
3
3
A_GND Q106
4 4
KTC3200 GR
TAPE2_R1
5 5
TAPE2_L1
Q105
6 6
KTC3200 GR
TAPE2_L2
7
7
L-CH
0V
CNP102
TAPE2 C105
G
RECORD/
180P
PLAYBACK HEAD
0V
0V
Q103
KTC3200 GR
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 9.
1
IC301
TA7358AP
FM FRONT END
1 2 3 4 5 6 7 8 9
+B
R306
C319
C314
10
0.022
10/50
C304
4.7P
(CH)
C303 C306
0.01 15P
(CH)
VD303
OSC.FM
KDV147B
L303
C310
0.001
R320
10K
R314
T301 FM IF
3 10K
1
TP301
C313
0.022
2
R316
C312 R312
C316 4.7K
R311
C311
0.001 680 100P
220K
0.022
4.4V
0.7V
Q302
2SC535 C
0V
R380
C392 1.5K
0.001
C381
12P
2.7V 22 21 20 19
(CH)
C382
1 2 3 4 5 6 7 8 9
15P
(CH)
D304
1SS133
D305
1SS133
R155
150
C153
100/16
C109 Q110
R114
0.047
10K KRC104 M
0V
2 3
R113
3.4V
1
10K
R115
4.7K
1
9.3V
0V
3
3.4V
2
Q111
9.3V
KRC104 M
R112
10K
R102
1K
R101 C116
1K
47/25
C114
R118
330P
1K
R104 C112
2.2K
330P
0.7V 0V
24 23 22
0V
0V
Hich=T1
0.7V
1 2 3
C111
330P
R117
C113
1K
330P
0.7V
C115
0V
47/25
R105 0V
3.3K
0V
0.7V
R119
R103
56
2.2K
2 3
Figure 22 SCHEMATIC DIAGRAM (9/10)
AM ANT
R321
120
C337
10/50
C332 C331
0.022 0.047
C333
0.022
C334
NC
6.8P
R323
T302
100K
(UJ)
T352
24 23 22 21 20
1 2 3 4
1.6V
C359
C361
+B 0.022
22/25
R317
AM IF
820
T351
C338
NC
100P
R381
3
10K
C369 R369
C393
2.2K
47/25
1/50
C383 L343
0.022 100µH
ZD351
MTZJ5.1B
+B
18 17 16 15 14 13 12
10.9V
2
11V
1 Q344
KRA102 M
IC302
0.2V
LC72131 3
10 11
PLL CONTROLLER
R182
220K
R154
0V
10K
0.7V
Q122
0V
KTC3199 GR
R126
5.6K
21 20 19 18 17 16 15 14 13
– –
+
+
112K 56K
Hich=CHROME
112K 56K
– + + –
4 5 6 7 8 9
10 11 12
R125
5.6K
R111
10K
4
– 22 –
MAIN PWB-A1(2/2)
+B
TP302
R350
47K
C351
R349
C358
0.0022
1.5K
0.0015/100
VCO
(P.P)
R348 C355
VR351
R375
33K
3.3/50 6.8K
1.2K
R352
19 18 17 16 15 14 13
15K
5 6 7 8 9
10 11 12 0.9V
Q343
KRA109 M
4.4V
2 3
R361
8.4V
1
10K
5.1V
2
C367
1
1/50
BF351
D342
1SS133
R365
150
(1/2W)
+B
+B
REC_MUTE
REC_L
R181
R153
0V
TAPE_L
220K
10K
0.7V
0V D102
Q121
1SS133
KTC3199 GR
D101
1SS133
R158
220
+B +B
R162
11.7V
47K
11.6V
0V
R164
4.7K
11.6V
Q126
KRC104 M
R160
150
R166 R167
47K
100K
0V
0V
C150
0.0039/100
0V
(P.P)
R168
12
C151
L104
0.027
330µH
(ML)
5
C395
100P
CHASSIS
GND
A_12V
1
TUN_R
2
A_GND
3
TUN_L
4
DO
5
CL
6
DI
7
CE
8
D_GND
9
TAPE_R
10
T1/T2
11
12
REC_R
13
14
15
BIAS
16
17
0V 1
2
3
0V
C152
47/25
6