9-15
6. Remove power board and main board, and cables connected to mother board. And
unscrew the thirteen (13) screws to remove the mother board.
7. Disconnect cables between the fan socket and the mother board and between the filter
socket and the mother board. And unscrew the five (5) screws to remove the rear cover
plate of hardware box. Then unscrew the four (4) nuts to replace the fan.
WARNING
Bafore replace cart, ensure to turn off the system switch and disconnect power
cable to avoid electrical shock.
Before the replacement of the main board, please record the settings of the
service menu. After the replacement of the main board, please restore the
settings of the service menu.
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