Schematic Diagram - Mother Board (2/2) - Sony SCD-XA777ES Service Manual

5-22. SCHEMATIC DIAGRAM – MOTHER Board (2/2) –
Q371
2SC3624A-T2L15L1
MUTING
Q381
2SC3624A-T2L15L1
MUTING
A1
A2
(Page 50)
R351 C353
10k 22p
A2
R352
10k
A4
R354
3.3k
R353
10k
A6
R361
10k
A1
R362 C354
10k 22p
A3
R363 R364
10k 3.3k
A5
C335
100
63V
C330
470p
R372 C370
33k 100p
R371
68k
R376 C372 C371 R374 R373
56 330 100p 68k 33k
16V
R375
4.7k
VEE
HEADPHONE AMP
IC371
NJM4580E-D VCC
R385
C392
4.7k
220
16V
C391
220
C382
16V
R386 330
56 16V
R383 R382
R384 33k
C381 68k
100p
R381
VCC
VEE
R355
2.7k
IC351
OPA2132UA/2K5
LINE BUFFER
C355 C356
C351
0.022 0.022
100
100V 100V
63V
RY351
C352
100
63V
D351
C368
1SS352-
0.1
TPH3
C357 C369
0.022 0.022
100V 100V
C365
100
63V
VCC
C363 C367
R365 220p 0.1
2.7k 100V 250V
VEE
IC352
R370
OPA2132UA/2K5
3.3k
LINE BUFFER
R366
3.3k
C364
4700p
100V
L371 220µH
L381
220µH
FR392
220
R392
220k
Q392
D390
RN2405-TE85L
UDZS-TE-17-9.1B
RELAY
DRIVE
Q393
DTA144EKA-T146
MUTING
CONTROL DTC114EKA-T146
SWITCH
FR391
220
C380 R394 R391
68k 100p 1k 22k
FR390
100
33k
R393 C390
100k 0.1
51 51
CN351
12P
-12V
GND
+12V
-12V
GND
+12V
-12V
GND
+12V
C362
-12V
0.1
250V
GND
C358 C360 C361
220p 100 100
+12V
100V 63V 63V
CN352
R360
3.3k
GND
A1
R356
3.3k
GND
A2
GND
C359
R359 R357
4700p +12V
470k 10
100V
GND
-12V
4 1
CN353
GND
A3
5 8 GND
A4
GND
+12V
R367
10 GND
-12V
C366
100
63V
GND
A5
GND
R369
470k
A6
GND
+12V
GND
-12V
CN354
8P
R358
100
R368
100
CN390
-12V
GND
+12V
R390
22k
Q391
RELAY
DRIVE
CN392
SCD-XA777ES
12
8
4
11
7
3
10
6
(Page 63)
2
9
5
1
8P
R
L
(Page 57)
8P
R
L
(Page 55)
R
L
(Page 53)
J351
L
ANALOG
2CH OUT
R
3P
(Page 63)
3P
G
L
R
(Page 61)