Oki MPS2731mc - High-Voltage Power Supply Board

44952001TH Rev.2
4-35
Oki Data CONFIDENTIAL
4.REPLACEMENT OF PARTS
4.2.16 High-voltage power supply board
Warning
Electricshockhazard
When replacing the low-voltage power supply, electric shock may occur. Wear insulated
gloves, or be careful not to touch the conductors or terminals of the power supply
directly. After the AC cord is unplugged, the capacitor may take about one minute to
discharge completely or, due to PCB breakdown, could not discharge. Use caution
about electric shock.
(1) Remove the right side cover and the CU/PU board.
(2) Remove the four (silver-colored) screws
①
to remove the film-PUCU board
②
and
the plate board
③
.
(3) Remove the two (silver-colored) screw
④
to remove the plate-FG
⑤
.
(4) Unlatch the four portions to detach the high-voltage power supply board
⑥
.