Sharp CD-ES770 Service Manual page 3

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