CD-XP120H (serv.man8). Schematic diagrams - Sharp Audio Service Manual (repair manual). Page 5

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CD-XP120H
– 22 –
Figure 22 SCHEMATIC DIAGRAM (5/10)
A
B
C
D
E
F
G
H
1
2
3
4
5
6
• NOTES ON SCHEMATIC DIAGRAM can be found on page 13.
(0.9V)
0V
(0V)
4.7V
1.3V
1.3V
2.1V
(0V)
2.3V
(2.7V)
(2.7V)
0.6V
5V
2.5V
2.1V
2.1V
2.3V
4V
(2.2V)
(1.2V)
3.8V
(1.9V)
3.8V
0V
5V
(4.3V)
2.9V
0V
5V
5V
2.1V
2.1V
5V
2.1V
9.5V
0.8V
2.5V
9V
2.6V
2.6V
0V
0.9V
0.9V
5.2V
(0V)
2.6V
(2.6V)
3.9V
(0V)
(0V)
3.5V
3.7V
5.1V
4.8V
0.1V
0.1V
0V
0V
10.9V 
10.8V 
11.7V 
1
2
3
AM TRACKING
AM BAND
COVERAGE fL
1
1
1
3
2
2
2
3
3
AM LOOP
ANTENNA
GND 
AM
FM
PD
PT301
FM
FM
MUTE
VSM
AM  RF
(AM/FM) 
PHASE 
PHASE 
IF  OUT
VCC 
FM  DET
TP302
STEREO
SD
GND 
AM  IF 
REG 
AM  MIX
OUT 
OUT
OUT
OUT
OUT
IN
IN
IN
IN
CUT
AM  LOW
FM/AM
MPX  VCO
MPX  IN
MO/ST
L-CH
R-CH
FM  IF 
FM  AFC
AM  OSC
AM  OSC
CE
DI
CL
DO
MO/ST 
IF  REQ IF  IN
AM  IN
FM  IN
VDD
AIN
AOUT
VSS
X  OUT
X  IN
2
1
2
1
11 10
9
8
7
6
5
4
3
2
1
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
SD
FM  ST 
DO
CL
CE
DI
A_12V 
D_GND 
TUN_L 
TUN_R 
A_GND 
TO
MAIN PWB P18  1 - C
MAIN PWB-A1(3/3)
FM SIGNAL 
AM SIGNAL 
IC303
LA1832S
IC302
LC72131
AM IF
SWITCHING
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
R363
6.8K
R356
1K
C368
1/50
C374
0.018
C369
56P
R357
470K
Q351
KRC104 M
C373
0.018
R361
12K
R364
6.8K
C371
1/50
C372
1/50
X351
456 kHz
L354
LOW PASS FILTER
C367
1/50
R350
2.7K
C366 0.001
C365 0.022
C364
10/16
C363 0.022
C360 0.022
C361 0.022
C362 3.3/50
C343
33P
R358
8.2K
L353
1mH
VR351
VD301
SVC348S
C332
0.022
C331
0.047
C330
12P(CH) 
T302
C329
0.022 
C302
0.001
L341
BALUN
D301
1N4148
D302
1N4148
T306
AM OSC.
C337
0.022
C335
560P
R323
68K 
C334
27P(UJ)
R351 5.6K
R336
5.6K
C358
1/50
C357
2.2/50
R355
3.3K
C355
22P
C370
1/50
C356
0.001
C399 0.022
C398
100/10
R353
270
CF351
C354 0.022
C353 0.022
R352
1K
C350
0.022
CF352
T351
C378
330P
C352
10/16
CF302
C344
33P
C351 0.022
Q301
R348
680 R349
33
R347
6.8K
CF301
C341
0.022
R344
680
R346
330
C347
0.022
R343
180
R369B
82
R369A
68
FE301
FM  FRONT  END
CNP301
D303
1N4148
D304
1N4148
C301
0.012
C349
0.001
SO301
FM
ANTENNA
TERMINAL
C348
100/16
C345
0.022
C346
0.022
R345
4.7K
L342
2.2
µ
H
C380
10/16
C387
0.022
C392
0.001
R380
1.5K
C393
1/50
R381
10K
R386
330
C397
0.022
C394
47/16
R382
330
C384
0.001
C382
15P
(CH)
C381
12P
(CH)
X352
4.5 MHz
R379
2.2K
C385
0.01
C386
330P
L351
100
µ
H
R393
1K
R377
5.6K
R395
47K
R376
10K 
ZD351
DZ5.1BSB
C396
100/10
L352
100
µ
H
C383
0.022 
R387
5.6K
R391
390
C395
0.022
R392
390
Q360
KSA1015 GR
R383
5.6K
R385
5.6K
R384
6.8K
C391
47/16
D308
1N4148
R365 10K
R359
1.8K
R360
4.7K
R371 1K
R372 1K
R373 1K
R374 1K
C388
0.01
C376
0.01
R366
2.2K
R362
12K
IC303
LA1832S
FM IF DET./
FM MPX./AM IF
IC302
LC72131
PLL(TUNER)
Display
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