Read Sharp CD-C3H (serv.man11) Service Manual online
CD-C3H/CP-C3H
– 35 –
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Figure 35 SCHEMATIC DIAGRAM (9/16)
RT54A 1K
CNP303
LOW PASS
FILTER
C386
330P
5
R377 47K
H
R366
10K
R368
33K
R365
10K
C375
3.3/50
R367
1K
Q353
KTC3199 GR
Q354
KTC3199 GR
TUNER MUTE
X351
456kHz
R357 470K
R356
1K
C368 1/50
R353
270
IC303
LA1832
FM IF DET/
FM MPX./AM IF
L352
100
µ
H
CT23A
10/16
ICT21
LC72720
RDS MICROCOMPUTER
C355
22P
C370
1/50
RT49A
390
RT48A
390
ZDT21 MTZJ4.3B
CT43A
10/16
C357 2.2/50
R355
3.3K
C358
1/50
R354
4.7K
C356
0.001
C354 0.022
CF351 FM IF
C353 0.022
C398 100/10
C399
0.022
C366 0.001
RT32A
10K
RT33A
56K
CT37A
0.022
RT34A
56K
QT21
KTC3199 GR
C369 27P
C373 0.027
C374
0.027
R362
470
C372
1/50
R361
470
C371
1/50
D353
1SS133
R395
47K
R359 1.8K
R360
4.7K
4.7K
ZD351
MTZJ4.7B
C396
100/10
C395
0.022
C391
47/16
R385
5.6K
Q360
KTA1266 GR
R384 5.6K
R383
5.6K
R392
390
R391 390
R393
1K
CT24A
0.022
CT25A
560P
RT21
100K
XT21
4.332MHz
CT26A
22P
CT29A
0.022
CT28A
47/10
LT22 2.2
µ
H
1K
RT28A
1K
RT29A
1K
RT30A
LT21
2.2
µ
H
CT21A
47/10
CT22A
0.022
CT36A
0.022
R387
22K
Q361
KRC107 M
FM/AM
SWITCHING
ZD352
MTZJ3.9B
D352
1SS133
D351
1SS133
RT26A
1K
CT27A
22P
C367
1/50
R350
2.7K
RT37A
220K
RT36A
220K
RT35A
220K
R370
1K
R378 82K
R376
1K
RT51A 1K
RT52A 1K
RT53A 1K
1
2
3
4
5
6
7
8
9 10 11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
10
11
12
5
6
7
8
9
10 11
12
13
14
15
16
17
18
10
11
12
13
L354
V
0V
0V
3.5V
(0V)
(2.9V)
0V
0V
0.7V
(0V)
0V
0V
0.7V
(0V)
10.7V
(0V)
10.5V
(11.4V)
11.3V
5V(0V)
1.8V(0V)
2.5V(0V)
TP
IF IN
MO
/ST
ST IND
NC
AM
LOW
CUT
FM/AM OUT
MPX VCO
MPX IN
R-CH OUT
L-CH OUT
PHASE
(FM/AM)
PHASE
IF OUT
VCC
FM DET
STEREO
SD
GND
MO/ST
VREF
FLOUT
VSSA
MPXIN
CIN
T1
T2
T3
T5
XOUT
VSSD
SYNC
RDS-ID
DO
CL
CE
VDDD
XIN
VDDA
T4
NC
NC
NC
NC
NC
NC
NC
+B
+B
TUN MUTE
L-CH
R-CH
3
2
1
+B
+B
+B
+B
+B
+B
+B
+B
MUTING
A GND
A+12V
SM
SD
DI
CE
TP
TP
TP
DO
CLK
D GND
(CH)
(CH)
P26 1-E
CNP202
TO MAIN PWB
TUNER PWB-D
0.8V
0V
4.7V
2.6V
2.6V
0.8V
2.3V
2.1V
1.2V
3.5V
3.5V
3.5V
4.7V
4.8V
4.4V
0V
2.1V
4.7V
4.7V
2.1V
2.1V
2.6V
3.64V
1.3V
2.0V
1.8V
3.2V
3.2V
0V
1.7V
1.1V
2.1V
9
8
7
6
5
4
3
2
1
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
PIN
NO.
VOLTAGE
IC303
2.1V
2.1V
FM(ST)
AM
0V
0V
0V
0V
0V
4V
0V
0V
0V
5V
2.6V
0V
0V
0V
0V
2.5V
2.5V
2.5V
2.5V
2.5V
5V
0V
0V
2.4V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
9
8
7
6
5
4
3
2
1
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
PIN
NO.
VOLTAGE
ICT21
0.3V
0.7V
0V
4.1V
4V
0V
0V
FM(ST)
AM
0.3V
0V
0V
VOLTAGE
REGULATOR
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