Sharp CD-BP1450V Service Manual page 24

CD-BP1450V
MAIN PWB-A1(3/3)
A
FM SIGNAL
AM SIGNAL
B
C
C384
0.001
R375
470
D
E
R386
22K
F
A_10V
27
GND
26
A GND
TUN_R
31
TUN_L
32
G
DI
29
CE
28
DO
33
CLK
30
GND
25
D GND
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 32.
1
C314
0.0047
C315
C316
0.0047
0.022
C317
0.001
R327
R325
33
47K
Q302
R322
KTC3194 Y 680
C318
100P
R316
4.7K
C381
C382 12P(CH)
15P(CH)
X352
R382
4.5MHz
150
1
2 2
X IN X OUT
R381
2 1
VSS
10K
2
2 0
AOUT
R374 1K
3 C393
CE
1/50
R373 1K
4 DI
R380
R372 1K
1.5K
5
CL
C380
AIN 19
R378 1K
10/16
6
DO 18
PD
R379
2.2K
7 FM/AM 17
VDD
C387
16
FM IN
IF
8
CONT
1
5
AM IN
C385
L351
9 FM/AM
14 0.01 100µH
10 MO/ST 1
3 R377
SD
47K
1 2
IF IN
11 ST IND
R376 C386
1K 330P
R395
R360
47K
4.7K
R387
R359
1.8K
Q360
KTA1266 GR
R384
5.6K
R385
5.6K
C391
47/16
R383
R391
5.6K 270
2 3
Figure 24 SCHEMATIC DIAGRAM (11/11)
SO302
FM ANTENNA
GND
TERMINAL
FM 75 ohms
C301
0.001
D305 DS1SS133
C303
10P(CH)
C308 4.7P
C304
L312
C309
0.01
0.001
R311 100K
C305
R313
VD302
4.7P(CH)
33K
KDV147B
C312
0.022
C310 15P(CH)
R302
T301
10
C311
T302
18P
C324
8.2P(UJ)
C306
0.022
VD303
SVC211SPA
1
2
C313 C307
10/16
22P(CH)
R309
3
10K
CF303
C397
C351 0.022
0.022
C352 10/16
C394
C350 0.022
47/16
T351
C392
0.001
0.022
R352
1
2
3
CF352 AM IF
C353 0.022
R393
1K
C354 0.022
CF351
R353
C399 0.022
C398 100/10
C355
5.6K
22P
R388
3.9K
R355
3.3K
C370 1/50
L352
100µH
ZD351
DZ5.1BSB
4
– 24 –
AM LOOP
ANTENNA
2 1
1
2
CNP302
BF301
BAND PASS FILTER
1
2
3
1
2
3
4
5
AM BAND
6
COVERAGE fL
T306
7
8
AM OSC.
9
C335
560P
C334
27P(UJ)
R323
68K
VD301
SVC348S
R336
10K
R351
5.6K
R358
3.9K
1
FM IF IN 24
AM OSC OUT
C362
3.3/50
23
AM OSC IN
2
AM MIX OUT C361
0.022
22
FM AFC
3
REG
21
AM RF IN
C363 0.022
C364 10/16
20
VSM
1K
C365 0.022
4 19
AM IF IN AM LOW CUT
C366 0.001
18
FM/AM OUT
5 GND
6
SD
C367
R350
1/50
2.7K
7 STEREO
8
FM DET
X351
270
456kHz
17
MPX VCO
C368
9
VCC
1/50
16
MPX IN
10 R356
IF OUT C369
1K
27P(UJ)
11
PHASE
C374
15
R-CH OUT
14
L-CH OUT
PHASE
12
C371
C372
(FM/AM)
13
MO/ST
1/50
1/50
R361
R362
10K
10K
5
D304
DS1SS133
D303
DS1SS133
T303
C330
15P(UJ)
C332
0.022
C331
0.047
C342
0.022
R365
10K
TP
R357
470K
0.015
C373
0.015
R364
10K
R363
10K
6