Schematic Diagram - Egh Board (1/3) - Sony D-NE20 Service Manual

D-NE20/NE20LS
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5-4. SCHEMATIC DIAGRAM – EGH BOARD (1/3) –
3 7 6 3 1 5 1 5 0
CN9001
50P
T E
L 1 3 9 4 2 2 9 6 5 1 3
21
w w w
D-NE20/NE20LS
R405
R401
100k
100k
Q401
DTC115TE-TL
R402 100k
R408
100k
C449 R421
100p 100k
C405
0.047
R417 100
R409
47k
x a o
y
. i
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17
R423
4.7k
L402
L405
C439
0.22
C435
4.7
R435 47k
C402
0.01
Q Q
3 7 6
IC401
SC901590VAR2
C408
0.22 C444
47
6.3V
L403 L406
L401
C447
L410 1
TP405
VIN
C437
C440 C448 C441 C442 C443
C429
47 C427
47 0.1 0.1 0.1 0.1
22 22
6.3V
6.3V
6.3V 6.3V
C426
47
6.3V
TP404
P_GND
FB402
0
u 1 6 3
16 16
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2 4
8 9 9
Q405
QS6K1
C431
47
6.3V
C450
1
R414
L409
4.7k
Q404
QS6K1
C423
47
6.3V
TP618
C416
0.22
C417
0.22
C415 0.01
C424
0.22
C401 0.1
3 1 5 1 5 0 8 9 2
D405
MA785-(TX),SO L408
C434
2.2
C432
10
C418 0.1
C419 0.01
R430 1M
C420
0.1
R432 1k
C421 1
R431 1M
R436
1k
R404
1M
R428 C445
C422 0.1
47k
1
R427
R429
2.2M
22k
C414
R426
4700p
47k
R446
C413 C446
10k
0.01 1
R406
L407
L404
m
c o
.
2
8 9 9
4 9 8 2 9 9
18
TP403
VCC1
0
R407
0