Sharp CD-ES770 Manual de servicio - Página 3

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Sharp CD-ES770 Manual de servicio
: Changed
A
MAIN PWB-A1 (1/3)
FM SIGNAL
B
AM SIGNAL
C
+B
D
100P(CH)
C377
100P(CH)
C378
100P(CH)
C379
100P
E
(CH)
F
CE
1
DI
2
CLK
3
DO
4
A+10V
+B
5
G
AGND
6
DGND
7
TUN_R
8
TUN_L
9
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 5-1 (CD-ES700).
1
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C315
0.01
C316
0.022
C317
0.001
Q302
KTC3194Y
R316
4.7K
C382
+B
15P(CH)
X352
R382
4.5 MHz
150
R375
470
C383
47P
X IN X OUT
1
22
C376
C393
VSS
21
1/50
R381
2
AOUT
20
R374
1K
10K
3
CE
R373
1K
4
DI
R372
1K
5
CL
AIN
19
R378
1K
R379
6
DO
PD
18
2.2K
FM/AM
17
7
VDD
16
FM IN
IF
8
CONT
15
AM IN
C385
9
FM/AM
14
0.01
L351
100µH
10
SD
13
MO/ST
IF IN
12
11
ST IND
R377
C386
R376
47K
330P
R386
1K
22K
R395
R360
47K
4.7K
R359
1.8K
+B
SWITCHING
R384
R385
5.6K
5.6K
C391
47/25
R391
R383
270
5.6K
+B
C388
C384
0.001
0.001
2
3
Figure 3 SCHEMATIC DIAGRAM (1/7)
SO302
FM ANTENA
2
1
TERMINAL
CNP301
2
1
D305
1N4148H
C303
C308
10P(CH)
4.7P
FM RF
C304
L312
1
(CH)
0.01
C309
R311
2
0.001
100K
3
C320
R313
4
0.001
VD302
SVC230C
33K
5
6
C310
15P(CH)
C311
T301
18P
(CH) R302
7
10
8
C347
9
0.022
C306
0.022
C313
22P
(CH)
1
C307
10/50
2
3
CF303
TP301
C397
C351
0.022
R351
0.022
5.6K
C352
10/50
FM IF IN
1
C394
47/25
C350
0.022
2
AM MIX OUT
3
REG
C387
1
R352
0.022
2
1K
AM IF IN
4
3
CF352
5
GND
C353
6
R393
0.022
SD
1K
C354
0.022
7
STEREO
CF351
8
FM DET
10.7 MHz
R353
270
C399
0.022
9
VCC
C398
C357
100/10
2.2/50
10
IF OUT
R387
C355
11
PHASE
5.6K
22P
R388
(CH)
3.9K
12
PHASE
C358
(FM/AM)
1/50
C370
1/50
LA1832S
L352
100µH
FM IF DET./FM MPX./AM IF
ZD351
DZ5.1BSB
4
– 3 –
CD-ES770
AM LOOP
ANTENNA
BF301
BAND PASS FILTER
1
2
3
C323
0.022
AM BAND
COVERAGE fL
T306
C335
560P
C334
22P(CH)
C330
R323
15P(CH)
68K
VD301
SVC347S
R336
10K
C342
0.022
R358
3.9K
R365
24
AM OSC OUT
10K
AM OSC IN
23
C362
3.3/50
C361
22
FM AFC
0.022
AM RF IN
21
C363
0.022
C364
VSM
20
2.2/50
C365
19
AM LOW CUT
0.022
C366
FM/AM OUT
18
0.001
C367
R350
1/50
2.7K
X351
456 kHz
MPX VCO
17
C368
TP
1/50
16
MPX IN
R357
R356
C369
1K
470K
C374
27P(CH)
15
R-CH OUT
0.015
14
L-CH OUT
C373
MO/ST
13
0.015
C371
1/50
IC303
5
C302
0.001
6