Epson AcuLaser C2900N Service Manual page 64

Chapter 1 Troubleshooting
Step
Checking the power to the FAN.
Disconnect J503 from the PWBA LVPS.
Is the voltage across P503-1pin <=> ground on the PWBA
LVPS, about +24 VDC when the interlock switch (HARN
ASSY INTERLOCK) is pushed?
8
Checking after replacing the PWBA LVPS.
Replace the PWBA LVPS. (Refer to RRP8.5.)
9
Does the error still occur when the power is turned OFF and
ON?
Epson AcuLaser C2900N
Check
1 - 51
Remedy
Yes
Replace the FAN.
Go to step 9.
(Refer to RRP8.1.)
Replace the
PWBA MCU. End of work.
(Refer to RRP8.9.)
Revision B
No
Confidential