Sony GDM-400PS / GDM-400PST Service Manual ▷ View online
GDM-400PS/400PST
GDM-400PS/400SPT
— A BOARD (Conductor Side) —
— A BOARD (Component Side) —
– 35 –
– 36 –
A
USER CONTROL
NOTE:
The circuit indicated as left contains high voltage of over
600 Vp-p. Care must be paid to prevent an electric shock in
inspection or repairing.
The circuit indicated as left contains high voltage of over
600 Vp-p. Care must be paid to prevent an electric shock in
inspection or repairing.
1
2
3
A
B
C
D
1
2
3
@
A
B
C
D
•
A BOARD
SEMICONDUCTOR
LOCATION
SEMICONDUCTOR
LOCATION
IC
IC401
D–1
IC402
D–2
IC403
C–1
C–2
IC404
C–1
IC405
A–2
IC406
A–2
A–1
IC407
B–1
B–2
IC408
D–3
TRANSISTOR
*
Q101
A–1
A–2
–
Q102
A–1
A–2
–
Q103
C–1
1
Q201
A–1
A–2
–
Q202
A–1
A–2
–
Q203
C–1
1
Q301
A–1
A–3
–
Q302
A–1
A–3
–
Q303
C–1
1
Q401
C–2
1
Q402
C–2
1
Q404
D–2
1
Q405
D–2
2
Q406
D–2
2
Q409
A–2
1
Q410
A–3
–
DIODE
*
D101
D–1
6
D103
B–1
3
D104
B–2
3
D105
B–1
3
D106
C–2
3
D107
B–1
3
D111
D–2
7
D201
D–1
6
D203
B–1
3
D204
B–2
3
D205
B–1
3
D206
C–2
3
D207
B–1
3
D211
D–2
7
D301
D–1
6
D303
B–1
3
D304
B–1
3
D305
B–1
3
D306
C–2
3
D307
B–1
3
D311
D–2
7
D401
D–3
D–1
–
D406
C–2
C–2
–
D407
A–1
3
D413
A–2
A–1
–
D414
A–2
A–1
–
D415
A–1
A–2
–
D416
C–1
3
Component
(
)
Side
Conductor
(
)
Side
Component
(
)
Side
Conductor
(
)
Side
Component
(
)
Side
Conductor
(
)
Side
*
: Refer to Terminal name
of semiconductors in
silk screen printed
circuit (see page 24)
GDM-400PS/400PST
– 37 –
Ref.
Pin No. Voltage [V]
Q800
B
5.1
C
0.1
Q801
B
0
C
4.0
Q802
B
5.1
E
4.4
Q803
B
0
E
0.4
•
H BOARD
VOLTAGE LIST
VOLTAGE LIST
H
USER CONTROL
(4) Schematic Diagram of H Board
STBY+5V
1
2
3
4
5
6
7
8
9
10
S807
S806
S804
S803
S802
S801
S800
R809
R810
R800
R801
R802
R803
R804
R805
R806
R807
R808
R812
C800
D806
TH801
C801
CN801
R816
R815
R811
Q803
Q802
Q801
Q800
R814
R813
S805
D800
D801
47
25V
SPB-26MVWF
3.3k
330
330
470
470
680
1k
1k
5.6k
1k
1k
330
47
25V
10P
:XA
10k
:RN
100k
:RN
220
2SC3311A
LED DRIVE
2SC3311A
LED DRIVE
DTC124ESA
LED DRIVE
LED DRIVE
DTC124ESA
LED DRIVE
LED DRIVE
330
330
SEL1922D-C
SEL1922D-C
LED 0
LED 1
LED 2
LED 3
KEY DET
H
GND
GND
GND
ENV_TEMP
RESET
ASC
INPUT
BRT-
BRT+
OSD
CONT-
CONT+
STBY+5V
TO D BOARD
CN510
(USER CONTROL)
POWER
HD15
BNC
B-SS3426<J..>-H..
— H BOARD —
Schematic diagram
H
H
H
H
H
board
1
2
3
4
5
A
GDM-400PS/400PST
– 38 –
5-4. SEMICONDUCTORS
GDM-400PS/400PST
– 39 –
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