Main Board; Contact Assembly And High-/Low-Voltage Power Supply Boards - Oki OF5900 Maintenance Manual

4.3.12

Main Board

1. Remove the shield plate by unscrewing
six screws.
2. Unscrew four screws and disconnect two
connector cables, then slide the main
board for removal.
4.3.13 Contact Assembly and High-/
Low-voltage Power Supply
Boards
1. Remove the high-/low-voltage power
supply boards by unscrewing seven
screws.
Caution: Remove both boards at the
same time. Unscrew one
ground screw and remove the
ground cable from the AC inlet.
2. Disconnect two connectors to separate
two boards.
3. Remove the contact assembly.
Caution: Never touch the pattern on the
low-voltage board.
OKIFAX 5700/5900
Shield plate
Contact assembly
High-voltage
power supply board
4 - 15
Low-voltage power supply board