Main Board - Samsung MULTIXPRESS CLX-9251 Series Service Manual

3.3.7. Main board

1. Remove the rear cover. (Refer to 3.3.2)
2. Unplug all connector on the main board.
3. Remove the main board after removing 9 screws.
4. Install the new main board and insert the MSOK and
memory.
NOTE
When inserting the MSOK, be careful its direction.
CAUTION
When re-assembling the main board, be careful of
swapping the MAIN BLDC connector[A] and DCF
connector[B].
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3. Disassembly and Reassembly
3-21