Electrical Components
SM 4-231 D0CA/D0C9/D0C8/D0CB
Replacement
&
Adjustment
The locking wire saddle is released from the notch above the cooling plate.
For removing the PSU (AC) (PCB17) with the bracket.
1. Follow common procedures above.
2. Remove the PSU (AC) (PCB17) [A].
Note: Please avoid putting too much pressure on the PSU, as it might trigger a short circuit.
Reference
Putting too much power onto the board will cause the detachment of the pad soldered to the
back side.
The detached pad burns when turning on the fusing heater,
causing SC542 (Fusing Thermopile;TH1 reload Error), SC545
(Fusing Central Heater Continuously Heat) error.
Detached
Properly Soldered
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