Sharp CD-E500 Service Manual - Page 21

Schematic Diagram 2/11

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7 8 9 Figure 21 SCHEMATIC DIAGRAM (2/11) - 21 - C384 0.001 C382 15P(CH) C381 12P (CH) R359 1.8K R360 4.7K 2.6V 0V R374 1K 0.1V R373 0.1V 1K R372 4.8V 1K R371 5.1V 1K 1.7V (11.4V) 3.7V (0V) 3.9V 3.5V (0V) 11 8 9 10 7 3456 12 X352 4.5 MHz X IN X OUT VSS AOUT IC302 LC72131 PLL(TUNER) CE DI CL AIN DO PD FM VDD MUTE FM IN AM IN FM MO/ST IF REQ I F IN R365 10K 17 16 15 14 13 12 19 18 22 21 20 C397 0.022 2.6V TP301 VT C393 R380 1/50 1.5K R381 10K C394 47/16 0.9V 0.9V R379 2.2K 5.2V 2.6V(0V) 0V (2.6V) C385 0.01 +B C392 0.001 C380 10/16 C387 0.022 R377 5.6K L351 100µH 0V C386 330P R387 5.6K C395 0.022 Q360 KSA1015 GR +B 10V R383 5.6K R384 6.8K R385 5.6K C391 47/16 R309 470 C396 100/10 +B R391 390 R392 390 R382 330 R386 330 +B 100µH DZH05C2+ ZD351 R393 1K R395 47K C383 0.022 +B +B +B L352 C378 AM IF 330P C351 0.022 R336 5.6K R351 5.6K IC303 LA1832S 2.1V 1 2 3 FM IF DET./ 4 5 6 FM MPX./AM IF 2.1V 1 CF302 2 FM IF 3 C344 33P C352 10/16 C350 0.022 5V 2.1V FM IF IN AM OSC OUT AM MIX OUT AM OSC IN REG FM AFC AM RF IN 22 21 24 23 2.5V 5V 2.1V (2.7V) 2.1V (2.7V) T351 CF352 1 R352 1K VSM AM IF IN 2 3 C353 0.022 0V GND AM LOW CUT 5V SD FM/AM OUT C354 0.022 FM IF CF351 R353 C399 270 0.022 C398 100/10 C355 22P C356 0.001 C370 1/50 C357 2.2/50 5V STEREO 78 FM DET 2.9V (4.3V) 5V 9 MPX VCO VCC 0V 3.8V (1.9V) 10 11 MPX IN IF OUT PHASE R-CH OUT L-CH OUT C358 1/50 R376 10K R355 3.3K 12 PHASE MO/ST (AM/FM) 3.8V (1.2V) 13 15 14 16 17 19 18 20 2.3V 0.6V 0V (0.9V) 2.3V (0V) 2.1V 1.3V 1.3V 4V (2.2V) C372 1/50 FM MUTE LEVEL 10K(B) VR351 +B L353 1µH R358 8.2K C343 33P C360 0.022 C362 3.3/50 C361 0.022 C363 0.022 C364 10/16 C365 0.022 C367 R350 1/50 2.7K C366 0.001 X351 456 kHz TP302 R362 12K C368 1/50 R356 1K C369 56P R361 12K C371 1/50 R357 470K C374 0.022 C373 0.022 R364 3.3K 4.7V 2 (0V) R363 3.3K R366 2.2K 3 Q351 KRC104 M 1 D308 1N4148 +B 10 9.3V 9.3V 11 MAIN PWB-A (1/3) 1 SD 2 FM ST 3 DO 4 CL 5 CE 6 DI +B 7 A_12V 8 D_GND 9 TUN_L 10 TUN_R 11 A_GND CD-E500 CD-E55/E44 12 TO MAIN PWB (3/3) MAIN SECTION P24 1 - C

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