故障排查: |
1. Turn the power OFF and ON.
2. Turn OFF the power and disconnect the power plug. Check the following:
The connectors (P/J335, P/J451) between the Controller PWB, BP PWB, and Halftone PWB for poor contact, damage, and foreign matter.
The Flat Cable between the Halftone PWB J481 and J480, and the Motor Drive PWB J405 and J410 for open circuits, short circuits, and poor contacts.
3. If no problem is found, replace the following parts in sequence. However, each time a parts is replaced, check whether the Fail is still occurring and return the part if it has no problems.
Motor Drive PWB (PL 18.2, PL 18.5)
Controller PWB (PL 35.2)
Half Tone PWB (PL 18.8, PL 18.10) |