Oki ML490 Maintenance Manual - Page 113
Replace operation Panel Board
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Page 113 highlights
9 Malfunction of switch on operation panel Is the CN1 of operation panel connected to the CN3 on the Control Board? Yes No Connect the cable properly. Replace operation Panel Board Remedied? No Yes End Replace Control Board 42114101 Rev.1 113 /
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42114101
Rev.1
113 /
9
Malfunction of switch on operation panel
Is the CN1 of operation panel connected to the CN3 on the Control Board?
Yes
No
Connect the cable properly.
Replace operation Panel Board
Remedied?
No
Yes
End
Replace Control Board