Sharp CD-XP120W Service Manual page 22

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CD-XP120W
MAIN PWB-A1(3/3)
C349
0.001
A
B
C
D
+B
C384
+B
0.001
C382
15P
(CH)
E
2.6V
1
IC302
2
LC72131
PLL(TUNER)
R374
0.1V
1K
3
R373
0.1V
1K
4
R372
1K
4.8V
5
R371
1K
5.1V
6
1.7V
7
(11.4V)
3.7V
8
(0V)
F
3.9V
9
3.5V
10
(0V)
11
+B
D308
G
1N4148
C391
47/16
+B
+B
+B
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 13.
1
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AM LOOP
ANTENNA
SO301
2
1
FM ANTENNA
TERMINAL
2
1
CNP301
D307
1N4148
D305
1N4148
C304
0.01
C320
0.001
D306
C305
1N4148
0.0047
C307
C306
0.0047
9P(UJ)
C308
FM RF
0.022
L302
C309
0.001
R302
R301
100K
22
R303
33K
VD303
KDV147B
FM IF
OSC BUFF
R315
R307
Q302
33
47
SSC1674 C
FM OSC.
C315
L303
100P
C313
C316
6P
10/16
(UJ)
1
3
C317
VD302
0.022
+B
KDV147B
+B
R313
680
R312
R316
R314
2.2K
330
33
Q306
SSC1674 C
+B
R309
470
+B
+B
C344
33P
C381
12P
R382
X352
(CH)
330
4.5 MHz
C397
0.022
2.6V
X OUT
X IN
22
VT
R381
21
VSS
0V
10K
20
AOUT
C393
C394
1/50
47/16
R380
C392
DI
1.5K
0.9V
0.001
CL
19
AIN
CF352
0.9V
C380
DO
10/16
18
PD
R379
2.2K
FM
C387
+B
5.2V
0.022
17
VDD
2.6V
(0V)
MUTE
FM IN
16
0V
AM IN
15
FM
(2.6V)
C385
0.01
14
+B
MO/ST
R393
1K
13
IF IN
12
R395
IF REQ
47K
C386
C355
0V
330P
22P
R365
10K
C383
R387
0.022
5.6K
R376
10K
C396
+B
100/10
+B
R385
5.6K
10.9V
ZD351
Q360
KSA1015 GR
DZ5.1BSB
SWITCHING
2
3
Figure 22 SCHEMATIC DIAGRAM (5/10)
BF301
B.P.F
1
2
3
C319
18P(CH)
1
0.8V
2
1.5V
3
5.2V
C318
5P
4
1.5V
C302
D302
0.001
1N4148
5
0V
6
5.2V
7
4.4V
C330
12P(CH)
8
3.8V
2
C334
C331
27P(UJ)
0.047
C332
9
5.2V
0.022
VD301
SVC348S
R336
5.6K
+B
C351
R351
0.022
5.6K
CF302
L353
1
1mH
3
2
2.1V
C343
2.5V
33P
AM OSC
1
FM IF
24
OUT
IN
C352
C362
5V
5V
10/16
AM MIX
3.3/50
23
2
OUT
AM OSC
C378
C360
IN
330P
0.022
REG
3
C361
2.1V
0.022
FM AFC
C350
22
0.022
(2.7V)
(2.7V)
2.1V
AM RF
21
IN
C363
0.6V
0.022
VSM
20
1
R352
2
1K
AM IF
C365
4
3
IN
0V
(0.9V)
0.022
19
0V
AM LOW
5
GND
CUT
C353
18
FM/AM
0.022
6
SD
OUT
C366
5V
0.001
C354
R350
C367
5V
2.7K
1/50
0.022
STEREO
7
CF351
FM DET
8
X351
R353
2.3V
456 kHz
2.9V
C399
270
MPX VCO
(4.3V)
17
0.022
VCC
9
(0V)
C398
C368
R356
R357
5V
2.1V
1/50
100/10
1K
470K
0V
MPX IN
16
10
IF OUT
C369
3.8V
C356
56P
(1.9V)
R-CH
1.3V
0.001
11
PHASE
15
OUT
C370
L-CH
1/50
1.3V
OUT
14
C373
C372
0.022
1/50
PHASE
MO/ST
13
12
(AM/FM)
R364
R355
3.8V
3.3K
3.3K
+B
(1.2V)
4V
(2.2V)
IC303
2
LA1832S
R363
3.3K
FM IF DET./
R366
FM MPX./AM IF
2.2K
3
Q351
KRC104 M
4
– 22 –
FM SIGNAL
AM SIGNAL
C364
10/16
C374
0.022
1
TUN_R
10
TUN_L
9
FM ST
2
SD
1
A_GND
11
P18 1 - C
DO
TO
3
MAIN PWB
CL
4
DI
6
CE
5
+B
A_12V
7
D_GND
8
5
6

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