Service manual

5.3 Repairing the Board Assembly, C076 PSB/PSE
This section provides instructions for repairing the BOARD ASSEMBLY,
REV.-A
C076 PSB/PSE. It describes various
problems, likely causes, checkpoints, and solutions. The checkpoint column provides proper waveforms,
resistance values, and other information for each component of the
C076 PSB/PSE.
rwAR:NG
The OPERATE button on the control panel turns on or off only the secondary power circuit, so the
primary power circuit IS Ilve as long as the printer IS connected to an AC power outlet.
Do not touch the heat sink attached to the FET
(Ql) when the printer is powered.
Table 5-4. Repairing the BOARD ASSEMBLY,
C076 PSB/PSE
5-11