Read Sharp XL-55 (serv.man15) Service Manual online
– 21 –
XL-55H/65H
7
8
9
10
11
12
9
8
7
6
5
4
3
2
1
CL
DO
STEREO
DI
CE
P MUTE
P-STB
CD+B
CD+B
FM ST
SD
DI
CE
DO
CL
P31 12 - F
CNS704
TO DISPLAY PWB
P26 1 - C
TO MAIN PWB(3/3)
22 21 20 19
18
17
16 15
14 13
3
4 5 6
7 8
9
10
11
12
22 21 20
19
18
17 16 15 14 13 12
1 2
3 4 5 6 7
8 9 10 11
PD
T
FM
FM
MUTE
VSM
AM RF
(AM/FM)
PHASE
PHASE
IF OUT
VCC
FM DET
STEREO
SD
GND
AM IF
REG
OUT
OUT
OUT
IN
IN
CUT
AM LOW
FM/AM
MPX VCO
MPX IN
MO/ST
L-CH
R-CH
FM AFC
CE
DI
CL
DO
MO/ST
IF REQ
IF IN
AM IN
FM IN
VDD
AIN
AOUT
VSS
X OUT
X IN
3
1
2
FM IF
AM IF
1
2
3
LOW PASS
FILTER
FILTER
1
2
3
4
5
6
7
8
9
10
11
TUN L
TUN R
CE
DI
CL
P_MUTE
P_STB
A_GND
D-GND
A-12V
0.022
0.022
0.022
0.001
4.7/25
0.022
2.7K
1/50
456kHz
1/50
1/50
12K
1/50
1K
470K
12K
56P
KRC104 M
0.03
0.03
6.8K
6.8K
LA1832S
FM IF DET./FM MPX./AM IF
2.2/50
3.3K
1/50
0.001
1/50
22P(CH)
10K
100/10
270
0.022
0.022
0.022
330P
2.2K
0.022
47/16
10K
1/50
1.5K
0.001
10/16
0.022
100
µ
H
330P
0.01
2.2K
5.6K
1K
1K
1K
1K
1K
1.8K
4.7K
C72131
TUNER)
10K
100
µ
H
0.022
100/10
DZ5.1BSB
390
390
2HA1015 GR
5.6K
6.8K
5.6K
47/16
0.022
1K
47K
0.022
5.6K
1N4148
CNP704
C361
C363
C366
C364
C365
X351
R350
C367
C372
C371
R361
C368
R356
R357
R362
C369
C374
C373
Q351
R363
R364
IC303
C357
R355
CFW301B
C358
C356
C370
C355
R376
C398
R353
C354
CF351
C399
C353
CF352
T351
C378
R366
C394
R381
C393
R380
C392
C380
C387
L351
C386
C385
R379
R377
R393
R374
R373
R372
R371
R359
R360
C302
R365
L352
C395
C396
ZD351
R391
R392
Q360
R385
R384
R383
C391
C350
R352
R395
C383
R387
D308
L354
(0V)
4.7V
1.3V
1.3V
4V
(2.2V)
2.3V
2.1V
(0V)
2.1V
2.1V
0V
5V
5V
(4.3V)
2.9V
0V
5V
(1.2V)
3.8V
(1.9V)
3.8V
(2.7V)
2.1V
(2.7V)
2.1V
0.6V
(0.9V)
0V
0V
2.3V
5.2V
(0V)
2.6V
(2.6V)
0V
0.9V
0.9V
2
.6V
2
.6V
0V
5.1V
4.8V
0.1V
0.1V
3.9V
(0V)
(0V)
3.5V
3.7V
(11.4V)
1.7V
0V
10.9V
10.8V
11.7V
+B
+B
+B
+B
+B
Figure 21 SCHEMATIC DIAGRAM (2/12)
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