1-26
GY-2120WD/WS
1-8-3. MS-54 Board Replacement
1.
Turn off the power and remove the power cord.
2.
Put the unit on its side down, remove the four screws
(PWH3
x
6), then remove the bottom plate. (Refer to
section 1-1-1.)
3.
Remove the two screws (PWH3
x
6), then remove the
frame(R).
4.
Remove the two screws (B3
x
5) and four screws
(PWH3
x
6) and pull out the MA-83 board.
At that time, slide the MA-83 board toward the front
panel, then take out it in the direction indicated by the
arrow.
5.
Remove the connector (CN1) on the MA-83 board.
Remove the three screws (PWH3
x
6) .
6.
Disconnect the five connectors (CN1, CN2, CN4 and
CN5), and remove the DR-327 board.
1-8. Boards Replacement
Bottom plate
PWH3
x
6
Frame (R)
PWH3
x
6
PWH3
x
6
PWH3
x
6
PWH3
x
6
PWH3
x
6
PWH3
x
6
B3
x
5
PWH3
x
6
PWH3
x
6
PWH3
x
6
MA-83 board
B3
x
5
CN1
MA-83 board
DR-327 board
PWH3
x
6
PWH3
x
6
PWH3
x
6
CN1
DR-327 board
CN5
CN2
CN4
Summary of Contents for GY-2120WD
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Page 437: ...7 3 GY 2120WD WS Index Mechanical Deck Overall Block 6 7 9 8 2 1 3 4 5 ...
Page 469: ...8 1 GY 2120WD WS 8 1 Section 8 Block Diagrams Frame Wiring ...
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