| 故障排查: |
Procedure
Turn OFF the power and disconnect the power plug. Remove the Rear Lower Cover. Measure the resistance of the Motor Drive PWB (F8).
Is the resistance 5 Ohm or higher?
Y N
[Low model]
Check the connection between the LVPS CCL J504-2 and the Motor Drive PWB J401-3 for open circuit, short circuit, and poor contact.
[Mid/High model]
Check the connection between the LVPS_CP1U J510-2 and the Motor Drive PWB J401-
2 for open circuit, short circuit, and poor contact.
Disconnect the following connectors from the Motor Drive PWB and measure the resistance between each connector terminal and the GND.
J452-14 (2TM/TTM Take Away Motor)
J452-1/2/3/4 (2TM/TTM Tray 3 Feed/Lift Motor)
J452-5/6/7/8 (2TM/TTM Tray 4 Feed/Lift Motor)
Is the resistance 5 Ohm or higher for all?
Y N
Check the following:
The connections that are in earth fault (at 5 ohm or lower) for short circuits.
The target components for internal short circuits.
Replace the Motor Drive PWB. (PL 18.2, PL 18.5) |
