Sharp CD-MD3000H Service Manual page 55

CD-MD3000W
C301
0.001
C389
0.001
C341
0.1
C2B_CE
R373
C2B_DI 1K
C2B_CL
C2B_DO
R371
4.7K
4.7V
Q371
KTA1266 GR
SWITCHING
R384
C391
5.6K
47/16
R385
5.6K
R383
5.6K
10V
10V
Q360
2SB562 C
SWITCHING
+B
C2B_DI
+B
E
C2B_DO
F
C2B_CL
G
C2B_CE
H
D_GND
I
VSM
J
A_+B +B
K
TUN_L
L
A_GND
M
TUN_R
N
MAIN PWB-A1(1/3)
7
FM SIGNAL
L342
2.2µH
+B
C384
+B C381
0.001
12P(CH)
C382
X352
15P(CH) 4.5MHz
C312
100P
(CH) 2.3V
2.3V
C310 X OUT
1 X IN 22
100P
R374
0V 2 NC VSS 21
(CH)
1K
0V
AOUT
3 CE 20
0V
4 DI
0V
5
CL
R372
19
AIN
1K
4.7V
6 DO PD 18
IC302
D352
VDD 17
DS1SS133
0.1V
7 FM FM IN 16
3.5V
8 MW AM IN
15
4.1V
9
MUTE NC 14
3.6V
MO/ST
10 IO2 13
4.7V
11 IF IN 12
ST IND
R376
1K
R378
82K
R395 IC302
47K
R360 LC72131
4.7K
PLL(TUNER)
8 9
Figure 55 SCHEMATIC DIAGRAM (2/16)
AM SIGNAL
C314
0.0047
C315
0.0047
C316
0.1
+B
C317
0.001
C390
R327
0.001
33
C321
R369
100/16 0.1V
1.8V
1K
Q302
KTC3194 Y
C345
0.022 OSC BUFF
C318
100P(CH)
C346
0.022
TP301
C347
0.022
R345
4.7K
VT_CK
R382
150
C397
0.022
0V
R381
10K
1.3V
C393
C394
1/50
47/16
R380
1.5K
C392
0.8V
0.001
0.8V
R379 C380
2.2K
10/50
4.7V
C387
2.3V
0.022
0V
L351
C385
0.01 100µH
4.7V
R393
1K +B
0V
R377
47K
C386
330P
+B
(CH)
+B
+B
C370
1/50
+B
C319
R392
R389
0.1
390 3.9K
R391
390
C355
DZ351
22P
DZ5.1BSB
(CH)
10
– 55 –
CD-MD3000H/CD-MD3000W
AM
FM FM/AM
LOOP
ANTENNA
1 2 3
CNP303
3
1 2
D310
DS1SS133
C303
C308
10P(CH)
C304
5P(CH)
1
0.01
FMRF
C306
L312
2
0.001
R311
3
C305
100K
4
R313
5P(CH)
33K VD302
5
SVC211C C325
15P(CH) 6
R302
FM OSC.
C327
7
10
0.1
8
C326
9
18P(CH)
T311
C324
T312
4P(CH)
COVERAGE fL
FM IF
VD303
SVC211C
C313
22P
R309
(CH)
10K
+B +B
C337
AM BAND
0.022
COVERAGE fL
T306
AM OSC.
C335
330P(CH)
C334
18P(CH)
1
2
3
CF302
R323
FM IF 68K
10.7MHz
R336
10K
R351
C351
5.6K
0.022
C352
10/50
2V 3V
1 FM IF IN
AM OSC OUT 24
4.6V
4.6V
C350 2 AM MIX OUT AM OSC IN 23
0.047
2V
3 REG
T351
2.4V
AM IF
FM AFC 22
0.3V
AM RF IN 21
0V
AM IF VSM 20
IC303
CF352
LA1832S
1
2V
AM LOW
2.3V
4 AM IF IN
2 CUT 19
2.1V
3
R352
0V
FM/AM
5 GND 18
1K
C353 OUT
4.7V
6
SD
0.022
C354 C367
4.7V
7 STEREO
1/50
0.022
R353
270
CF351 2.5V
8
FM DET
FM IF
C399 X351
0.022 456kHz
4.6V 2.1V
9
VCC MPX VCO 17
C398
100/16
2V
3.9V
10 IF OUT MPX IN 16
3.4V
C368
11
PHASE
1/50
1.2V
C358 R-CH OUT 15
1.2V
1/50
L-CH OUT
14
PHASE
3.4V 3.6V
12 MO/ST 13
(FM/AM)
C371
R359 R355
1/50
1.8K 3.3K
R361
8.2K
IC303
LA1832S
FM IF DET./FM MPX./AM IF
R354
3.9K
11
1
BAND
2 BF301
PASS
FILTER
3
0.8V
1.6V
3.6V
1.6V
0V
3.6V
2.9V
D301
3.6V
DS1SS133
3.6V
D302
T311 DS1SS133
FM BAND
C338
0.001
D303
DS1SS133
D304
DS1SS133
+B
C323
0.022
T302
AM
C339
ANTENNA
100P
(CH)
C330
18P(CH)
VD301
SVC348S
C332
C331
0.022 0.047
C342
0.022
FM
VR351
MUTE
10K(B)
LEVEL
L353
R358
1mH
8.2K
C343
C362
33P
3.3/50
(CH)
C361
0.022
C363
0.022
C364
4.7/50
C365
0.022
C366
0.001
R350
2.7K
R357
R356
470K
1K
C374
0.015
C373
0.015
R363
1.2K
R364
1.2K
2
1
SWITCHING
3
Q351
KRC104 M
R370
1K
12