Siemens MCM-21T2 Service Manual page 31

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— A BOARD (Conductor Side) —
1
A
B
C
D
Schematic diagram
< (a)
(a)
(a)
(a)
(a)
board
2
3
• A BOARD
— A BOARD (Component Side) —
SEMICONDUCTOR
LOCATION
IC
(
Conductor
)
(
Component
)
Side
Side
IC401
B-3
IC402
B-2
IC403
A-2
A-2
IC404
C-3
IC405
D-2
A
IC406
A-3
A-1
IC407
D-2
TRANSISTOR
(
Conductor
)
(
Component
)
Side
Side
*
Q101
C-1
1
Q201
C-1
1
Q301
C-1
1
Q401
A-3
1
Q402
D-3
qg
Q406
D-3
1
Q407
D-2
2
Q410
D-3
D-1
DIODE
B
(
)
(
)
Conductor
Component
Side
Side
*
D101
B-1
6
D102
A-3
7
D103
A-1
qa
D105
B-3
B-1
D106
A-2
3
D107
A-2
3
D201
B-1
6
D202
A-3
7
D203
A-1
qa
D205
B-3
A-1
D206
A-1
3
D207
A-2
3
D301
B-1
6
D302
A-1
6
D303
A-1
qa
D305
A-3
A-1
C
D306
A-1
3
D307
A-3
3
D402
D-3
9
D403
A-2
A-2
D405
D-3
D-1
D406
D-2
6
D407
D-2
6
CRYSTAL
(
Conductor
)
(
Component
)
Side
Side
X401
C-2
C-2
*
: Refer to Terminal name of
semiconductors in silk screen
printed circuit (see page 5-10)
D
1
2
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.
3

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