Error (141) Power Supply Failure (Lvps 110V Or 220V); Error (142) Engine Board Memory Failure - Lexmark Optra C Service Manual

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Error (141) Power Supply Failure (LVPS 110V or 220V)

FRU
1
Wrong fuser
unit
(New fuser or
machine)
2
Fuser upper
heater /
thermoswitch
3
Fuser lower
heater /
thermoswitch
4
Power supply
unit (low
voltage)
DC controller
PCB
Mechanical
controller PCB

Error (142) Engine Board Memory Failure

FRU
1
DC controller
PCB
Action
Turn the power switch OFF, and remove the fuser
unit. Do the power supply rated voltage and fuser
unit rated voltage correspond? Replace the fuser
unit so that it corresponds to the power supply rated
voltage.
Is there continuity between fuser unit connectors
J21-1 and J21-2 when the fuser unit is removed?
Check the continuity of both the fuser upper heater
and the thermoswitch, and replace defective parts.
Is there continuity between fuser unit connectors
J21-3 and J21-4 when the fuser unit is removed?
Check the continuity of both the fuser lower heater
and the thermoswitch, and replace defective parts.
Replace and check as follows:
1. Power supply unit.
2. DC controller PCB, see "DC Controller Board
Information" on page 2-2.
3. Mechanical controller PCB.
Action
Replace the DC controller PCB, see "DC Controller
Board Information" on page 2-2.
Diagnostic Information 2-25

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