992-Drum Cleaner Brush Cam Clutch (Fbcm) Service Check - Lexmark C720 Service Manual

5024-001
992—Drum Cleaner Brush Cam Clutch (FBCM)
Service Check
FRU
1 Check Connector
2 Drum Cleaner Brush
Cam Clutch (FBCM)
3 IOD2 P.W.B. Board
4 Main Engine (MCTL
P.W.B.) Board
Drum Cleaner Brush Cam Clutch (FBCM)
2-64
Service Manual
Action
Ensure the drum cleaner brush cam clutch
(FBCM) connector and ECN10 on the
IOD2 P.W.B. board are properly
connected.
Ensure ECN1 on the IOD2 P.W.B. board is
connected to 11CN on the main engine
(MCTL P.W.B.) board.
Check for +24V between ECN10-4 and
ECN2-5 on the IOD2 P.W.B. board.
If the voltage is less than +24V, replace
the drum cleaner brush cam clutch.
Check for +24V between ECN1-17 and
ECN2-5 on the IOD2 P.W.B. board.
If the voltage jumps to +24V, replace the
IOD2 P.W.B. board.
If the problem still exists, replace the main
engine (MCTL P.W.B.) board.