Schematic Diagram - Main Board (3/4) - Sony MV-900SDS Service Manual

MV-900SDS
6-9. SCHEMATIC DIAGRAM – MAIN Board (3/4) –
(3/4)
C225
0.1
FM MODULATOR
CN201
ANTENNA 3P L203
L202
2.2µH
D204
1SS356
R740
2.2k
L701
CN701
7P
R+ L702
R-
L-
L+
AUDIOGND L703
VGND
(Page 38)
VIN
R737
10k
R735
47k
R739
10k
R741 C721
2.2k 100p
IR-L
IR-R
SW12V
+5V
SPDIF
(Page 26)
R730 0
L-CH_AUDIO
AUDIO_GND
R731 0
R-CH_AUDIO
+8V
(Page 27)
C255 C253
4700p 4700p
C254
4700p
J301
OPTICAL
OUTPUT
SPDIF
5V
GND
OPTICAL
TRANSCEIVER
MV-900SDS
• See page 38 for Waveforms. • See page 41 for IC Block Diagrams.
R212
10k
R221 FL201 R220
150 6.8k
D203 D202
1SS356 1SS356
C221 0.047
D304 D303
R213 C220
UDZS5.6B UDZS5.6B
220 33
10V
R744 C722 C720 R742
C726
100k 100p 100p 100k
4.7
R748 R752 C730 Q208
25V
12k 22k 1 2SK209GR S
R738
10k
C724 R746
4.7 12k
25V
R736
10k
AUDIO INPUT SELECT
IC704
NJM2233
GND
R734
47k DIFFERENTIAL VIN1
AMP
SWI
VCC
IC703
RC45801PWR VIN2
C718
10 NC
R750 35V
22k
C725
4.7
R747
25V
12k
C727
R745 R751 AUDIO INPUT SELECT
4.7
100k R749 22k
25V IC705
12k
NJM2233
C731
1
R755 R753
1k 22k VIN1
SWI
C732 C734
C723 R743 R754 C733
47 100
100p 100k 1k 0.01 VIN2
16V 16V
C719
10 NC
35V
L304 L303
22µH 22µH
S
Q301
TPC6102
SWITCHING
REGULATOR
R306
82k
Q302,303
REGULATOR
C314 C309
R308 C313 R305 C310 D302 CONTROL
2200 470
10k 0.01 15k 0.01 RB050L-40TE25
25V 25V
R334
1k
L306
22µH
S
Q304
TPC6102
SWITCHING
REGULATOR
R313
68k
R311
47
C324 C320
C325 R314 R312 C321 D314
10 2200
1000p 22k 20k 0.01 RB050-40TE25
35V 25V
D316 D315
1SS355 1SS355
C217 R209
10 18k
35V C215
1000p
C214 R232
33p 33
C216
0.01
C218
330p
R211
10k
R231 R214 R217 R218 R219 C224
Q208,209
10 2.2k 3.3k 3.3k 10k 82p
LOW-PASS
FILTER
R215 C223
4.7k 10p
C222 D201 R210
C219 R216 Q209 2200p KV1471ETR 2.2k
1 1.5k 2SC4081
C226
100
16V
C736
10
GND 35V
R227
VOUT 4.7k
V+
NC
C737
0.1
Q210
DTC144EUA
C738
100
16V
C735
10
GND 35V
VOUT
XC6202P502PR
V+
NC
C251 4700p
L350
100µH
C252 4700p
C346
0.1
F301 L302 R333
2A 72V 22µH 1k
R302 R301 D306
220 2.2k 1SS355
R304 Q302 C306
47 2SC4081 100p
Q313
2SA1576A
R303
LATCH
220
Q303
R332 R331
2SA1576A
1k 47k
C304
C307 C305
470
100p 0.01
25V
D305
1SS355
L305
22µH
F302
1A
72V
R307
R309 2.2k
220
Q305
2SC4081
C317
100p
Q305,306
REGULATOR
CONTROL
R310
220
Q306
2SA1576A
C318
C315
100p C316
470
0.01
25V
28 28
C212
1
C213
0.01
C201
1
C203 R201
4700p 2.7k
FM STEREO
MODULATOR
IC201
BH1415F C204 R202
4700p 2.7k
X201
7.6MHz
C227 C228 C231 C232 C202
0.01 0.1 150p 2200p 1
R228 R229 R230
4.7k 4.7k 4.7k
Q210-213
LEVEL SHIFT Q211 Q212 Q213
DTC144EUA DTC144EUA DTC144EUA
IC304
O I
G
Q324
2SA1797
R366
22k
+5V REGULATOR
R365
Q323,324
10k
B+ SWITCH
D317
DAN202K
R364
10k
Q323
2SC4081
C344
C345 R367
22
0.1 47k
16V
R330 R329
220 22k
Q312
2SC4081
R327 C333
SWITCHING
47k 1
C348 R324
0.01 10k
Q309
2SA1797
Q314
R326
2SA1576A
39k
DEAD R328
47k
TIME
C330 R323 C331
470p 18k 0.47
C332
2.2
D307
1SS355
D308
1SS355
POWER CONTROL
IC301
BA9743AFV
C328
C329
10
0.15
35V
R317 39k C347
470p
R319 18k
Q310
2SA1576A
C327 0.47
C326 R316 R315 C351 R318
220p 22k 39k 470p 27k
R320 C349
47k 2.2
Q201-204
RF LEVEL
R207
SWITCHING
10k
R203 R205
2.2k 3.3k
Q201 Q203
DTC144EUA DTC144EUA
B1
Q202 Q204
DTC144EUA DTC144EUA
R204 R206
2.2k 3.3k R208
10k
B2
Q205
DTA144EUA
BUFFER
Q207 Q206
DTC144EUA DTA144EUA
INVERTER BUFFER
B3
B4
B5
FM2
FM1
B6
B7
B8
(Page 29)
B9
B10
R378 R380
47k 4.7k
R379
Q309,311
4.7k
B+ SWITCH
Q311 R381
2SC4081 22k
B11