Service manual

CD-SW250DVD
6 – 7
Figure 6-7 SCHEMATIC DIAGRAM (7/12)
FM SIGNAL
AM SIGNAL
PLAYBACK SIGNAL
FM FRONT END
1K
18K
1K
1K 1K
LC72131
PLL(TUNER)
1K
22K
3.9K
4.7K
470
15P
100P
22P
(CH)
560P
270
0.022
0.022
22P
(CH)
3.3K
1/50
330P
47K
100µH
0.01
0.022
1/50
10/50
2.2K
10K
2.2/50
0.022
10/16
KTC3194 Y
0.022
0.001
0.001
10
100P
4.7K
5.6K
47K
1K
3.3K
10K
4.7P
27P
(CH)
0.015
33K
10K
4.5MHz
0.022
0.001
22P(CH)
100K
0.022
0.047
15P
0.01
0.01
22
4.7P
1N4148H
33
1K
1/50
100/10
0.001
2.2/50
1/50
1N4148H
1N4148H
B.P.F
1K
0.022
2.2/50
150
TA7358AP
0.022
0.022
0.015
0.022
0.001
470K
68K
680
1.5K
0.001
0.022
2.7K
0.001
0.001
47K
47/16
4.7P
0.022
18P
100P(CH)
12P
10K
0.022
10/16 0.022
0.022
5.6K
0.022
15P(CH)
987654321
321
18192021222324
123 4 65789 10 11 12
1314151617
1213141516171819202122
123 456789
10
11
SVC230C
SVC347S
SVC230C
456KHz
TP301
TP302
2
CONT IF FM/AM FM/AM
AM
(CH)
(CH)
(CH)
1
SD
TP
(CH)
(CH)
MO/ST
ST IND MO/ST
VSS
AOUT
AIN
PD
VDD
FM IN
AM IN
DO CL DI CE XIN
XOUT
IF IN
REG AM IF IN GND SD STEREO FM DET VCC IF OUT PHASE (FM/AM) PHASE
L-CH OUT
R-CH OUT
MPX IN
MPX VCO
FM/AM OUT
VSM
AM LOW CUT
AM RF IN
AM OSC IN
FM AFC
AM OSC OUT
AM MIX OUT FM IF IN
1
1
2
2
FM 75 OHMS
GND
FM ANTENNA
TERMINAL
SO302
RECORD SIGNAL
TUNER PWB-D
C334
C335
C323
T303
C332
C331
C330
T306
D301
D302
R323
C302
VD301
CNP301
IC301
C313
C309
R302
C318
R316
R325
R309
T302
C305
R313
R311
L312
C304
R314
C324
D305
CF303
R322
T301
C320
C308
C311
C303
C312
C310
VD302
VD303
C317 C315 C316
R327
Q302
C342
C365
R358
C367
R365
C364 C363
C361
C362
C366
R350
X351
C369
C374
R356
C368
C373
R357
R388
R353
R393
R355
C355
C398
C356
C357
C358
CF352
R352
C353
C399
CF351
C354
C352 C350 C351
R359
R360
R395
R387
R351
R376
C386
R377
L351
C385
C393
C380
R379
C387
C392
R381
R382
C397
R380
C389
C394
R378
X352
R374 R373 R372
R386
R375
C382
C383
C381
IC302
IC302
CNS
3
BF301
C306
C307
C343
R336
T351
AM OSC.
AM ANTENNA
FM RF
FM OSC.
FM IF
AM IF
(CH)
A
B
C
D
E
F
G
H
1
23456