CHAPTER 6 SELF DIAGNOSIS
6-36
E901
0000
The motor ready signal does not arrive within 1.3 sec after the pedestal
main motor drive signal is generated.
Main cause
The connector has poor connector. The pedestal main motor is faulty. The
main power supply PCB is faulty. The pedestal controller PCB is faulty. The
DC controller PCB is faulty.
Action
1. Connector
Is the wiring between the pedestal controller PCB and the main power sup-
ply PCB and between the main power supply PCB and the DC controller
PCB normal?
NO:
Correct the wiring.
2. Main power supply PCB
Is the voltage between J206-2 (+) and J206-1 (-) on the main power supply
PCB about 24 V?
NO:
Replace the main power supply PCB.
3. Pedestal main motor
Try replacing the pedestal main motor. Is the problem corrected?
YES: End.
4. Pedestal controller PCB, DC controller PCB
Try replacing the pedestal controller PCB. Is the problem corrected?
YES: End.
NO:
Replace the DC controller PCB.
