Download Sharp PW-E500 Service manual

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7
C384
0.001
8
FM
MO/ST
IF REQ I
17 16 15
14 13 12
F IN
+B
TP301
R377
5.6K
9
R387
5.6K
AM IF
C370
1/50
3
4
5
6
7
8
9
10
11
C356
0.001
R355
3.3K
MPX IN
R-CH
OUT
L-CH
OUT
PHASE MO/ST
(AM/FM)
PHASE
13
10
11
12
3.8V
(1.2V)
3.8V
(1.9V)
14
IF OUT
15
VCC
16
9
R376
10K
C355
22P
0V
5V
4V
(2.2V)
1.3V
1.3V
2.1V
2.3V
(0V)
0V
(0.9V)
R350
2.7K
C368
1/50
C369
56P
R356
1K
X351
456 kHz
C367
1/50
R363
3.3K
R364
3.3K
C373
0.022
R357
470K
C366
0.001
C365
0.022
C364
10/16
C362
3.3/50
TP302
C371 R361
1/50 12K
4.7V
(0V)
+B
R360
4.7K
R359
1.8K
2
L352
100µH
C396
100/10
+B
R391
390
C395
0.022
R383
5.6K
+B
R392
390
L351
100µH
Q360
KSA1015 GR
R384
6.8K
Figure 21 SCHEMATIC DIAGRAM (2/11)
– 21 –
10
11
1
SD
2
FM ST
3
DO
4
CL
5
CE
6
DI
7
A_12V
8
D_GND
9
10 TUN_R
TUN_L
9.3V
11 A_GND
+B 10V
R385
5.6K
9.3V
D308
1N4148
+B
12
TO MAIN PWB (3/3)
MAIN SECTION
P24 1 - C
C383
0.022
+B
C398
100/10
FM/AM
OUT
17
MPX VCO
FM DET
8
2.9V
(4.3V)
STEREO
7
C386
330P
R393
1K
R395
47K
CF352
R353
C399 270
0.022
5V
6
0V
C385
0.01
FM IF CF351
2
0V
(2.6V)
2.6V(0V)
SD
18
R365
10K
FM IN
C354
0.022
5V
GND
AM LOW
CUT
VSM
C363
0.022
C361
0.022
C360
0.022
C343
33P
C374
0.022
FM MUTE
LEVEL
C391
47/16
18
AM IN
VT
5.2V
C387
0.022
0V
AM IF IN
5
3.5V
(0V)
MUTE
R380
1.5K
R379
2.2K
3
VDD
19
PD
1
C353
0.022
R352
1K
4
3.7V
(0V)
3.9V
FM
22 21 20
C380
10/16
C392
0.001
FM IF DET./
FM MPX./AM IF
0.9V
0.9V
T351
AIN
2.1V
19
1.7V
(11.4V)
DO
2
CL
IC303
LA1832S
5.1V
1
IC302
LC72131
PLL(TUNER)
DI
20
0.6V
2.1V
(2.7V)
21
AM RF
IN
5V
2.5V
22
4.8V
C393
1/50
0.1V
+B
R373
1K
R372
1K
R371
1K
C394
47/16
C378
330P
CE
CF302 2
C344
FM IF
33P
0.1V
R386
330
R381
10K
2.3V
2.1V
(2.7V)
FM AFC
REG
3
AOUT
C350
0.022
2
VSS
AM MIX OUT
AM OSC
IN
1
R374
1K
C382
15P(CH)
2.6V
C381
12P
(CH)
X OUT
R309
470
X IN
R382
330
2.1V
AM OSC
OUT
L353
1µH
0V
3
5V
2.1V
23
FM IF IN
24
C397
0.022
1
C352
10/16
R358
8.2K
10K(B)
VR351
2.6V
X352
4.5 MHz
R351
5.6K
+B
C351
0.022
R336
5.6K
CD-E500
CD-E55/E44
MAIN PWB-A (1/3)
Q351
1 KRC104 M
3
C372
1/50
R362
12K
R366
2.2K
C358
1/50
C357
2.2/50
ZD351
DZH05C2+
+B