Main Board; Smps Board - Samsung CLX-8640 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. Remove 6
screws. And remove the main board.
NOTE
When replacing the engine board, you must insert the
MSOK and Memory on new engine board.

3.3.8. SMPS board

1. Remove the rear cover. (Refer to 3.3.2)
2. Unplug all connectors. Remove 8 screws. And the
remove the SMPS board.
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3. Disassembly and Reassembly
3-19