Epson AcuLaser C2900N Service Manual page 75

Chapter 1 Troubleshooting
Step
Checking the connectors of the CLUTCH ASSY DRV (Regi
Clutch) for connection.
Check the connections between the PWBA MCU and
CLUTCH ASSY DRV.
Are P/J26 and P/J262 connected correctly?
30
Checking the HARN ASSY KSNR REGCL for continuity.
Disconnect J26 from the PWBA MCU.
31
Disconnect P262 from the CLUTCH ASSY DRV.
Is each cable of J26 <=> P262 continuous?
Checking the power to the CLUTCH ASSY DRV.
Disconnect J26 from the PWBA MCU.
32 Is the voltage across P26-4pin <=> ground on the PWBA
MCU, about +24 VDC when the Interlock Switch (HARN
ASSY INTERLOCK) is pushed?
Checking the CLUTCH ASSY DRV for resistance.
Disconnect P/J262 of the CLUTCH ASSY DRV.
33
Is the resistance across J262-1 and J262-2 approximately
280-ohm?
Epson AcuLaser C2900N
Check
1 - 62
Remedy
Yes
Reconnect the
connector(s) P/
Go to step 31.
J26 and/or P/J262
correctly.
Replace the
Go to step 32. HARN ASSY
KSNR REGCL.
Replace the
Go to step 33. PWBA MCU.
(Refer to RRP8.9.)
Replace the
Replace the
CLUTCH ASSY
PWBA MCU.
DRV. (Refer to
(Refer to RRP8.9.)
RRP3.1.)
Revision B
No
Confidential