Oki Data CONFIDENTIAL
43967002TH Rev. 1
180 /
4. Part Replacement
4.2.3.18 Holder switch Assy/Fan for low voltage power supply/Low
voltage power supply
(1) Remove the plate shield F. (4.2.3.8(1)? (Refer to chapter 4.2.3.8 (1) to (3).)
(2) Remove the MPT Assy. (Refer to chapter 4.2.3.15.)
(3) Disconnect the connector
and remove the screws (black). Remove the holder
switch Assy
.
(4) Disconnect the connector
and the screw . Remove the low voltage power
supply fan
.
(5) Remove the MZA PCB. (Refer to chapter 4.2.3.7 (1) to (7).)
(6) Disconnect the connectors of the respective cables that pass through the A portion
from the PC/CU PCB.
(7) R
emove the screw
and the cover pow .
(8) Remove the two screws
and the earth screw . Disconnect the AC power
supply connector
.
A portion
Connectors of the respective cables
Electric shock can occur.
When replacing the low voltage power supply, there is a danger of electric shock.
Be sure to wear an insulation gloves or do not touch the electrically conduction
areas or terminal directly by hand during the part replacement work.
It takes approx. 1 minute for capacitors to be completely discharged after the AC
power cord is disconnected. Be careful not to receive electric shock because
capacitors may not discharge in case if PCB is defective.