Lexmark Optra C Service Manual - Page 63
No DC Power, No Pickup (Manual Feed), Diagnostic Information 2-31
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5045-001 No DC Power FRU 1 AC power supply 2 Wiring DC load 3 Fuse Power supply unit Action Unplug the power cable. Is AC power being supplied to this cable? Check AC power. Turn the power switch OFF, and disconnect connectors J3, J4, and J5. Plug in the power cable, and turn the power switch ON. Are the above mentioned power supply unit connectors correctly outputting DC power? Take care not to cause a short. Turn the power switch OFF, connect 1 of the disconnected connectors, and turn the power switch ON. Repeat this for all the connectors, and investigate the connector operating the protection circuit, checking the wiring from that connector and the DC load. Is the power supply unit fuse blown? Replace the fuse. Replace the power supply unit. No Pickup (Manual Feed) FRU 1 Gear 2 Pickup motor Pickup PCB 3 Pickup PCB Manual feed solenoid Action Is the pickup motor drive properly transmitted by the gears? Check the gears, and replace any damaged ones. Does the pickup motor rotate? Check the connection of pickup PCB connector J304, and if it is normal: Replace the pickup motor. Replace the pickup PCB. Turn the power switch OFF, remove the pickup unit, and disconnect the connector J33. Measure the resistance between cable connectors J33-1 and J33-2. Is it about 100 Ohms? If yes, replace the pickup PCB. If no, replace the manual feed solenoid. Diagnostic Information 2-31