Muratec MFX-C4000 Field Engineering Manual page 200

3) LSU error
Description : LSU error message is displayed
Check the flow chart
1. Check LSU_5V/24VS with side cover closed
2. Enter the diagnostics mode. Check that the LSU
motor is up to the required speed.
Check the wiring between LSU
Service Manual
Alignment & Troubleshooting
O.K
and Engine PBA
O.K
Check 5V/24V
on Engine PBA
O.K
Reinstall
Developer
End
N.G
N.G
Connect the harness correctly.
N.G
Replace Engine PBA or SMPS
N.G
Replace OPC
4-94
Replace LSU