Omron NT631 Operation Manuals page 626

Maintenance of the NT631/NT631C
NT631C–CFL02 (for NT631C–ST141j–EV1)
Procedure 1
8 Fit the touch panel cable. Be sure to lock the connector as in step 4 after fitting.
9 Close the rear case, and tighten four screws. Make sure that the internal cable
is not trapped.
10 Reconnect the wiring, cables, and units disconnected in 2, and tighten the
screws at a torque of 0.4 N
Turn the power on, and check that the RUN LED is not flashing and that no
buzzer is sounding.
- If the RUN LED flashes at 1-sec intervals and a buzzer sounds intermittent-
ly, the touch panel cable is disconnected. Follow the above steps from 1,
and check the lock status of the connector.
11 Before starting normal operation, confirm that the following tests can be exe-
cuted correctly by using the I/O check in the Maintenance menu. Also perform
a communication test with the host.
- Touch switch
- Backlight
12 On confirming that all the tests in 11 can be executed normally, start operation.
Turn the power supply to the NT631C OFF.
Be sure to do so to avoid an electric shock.
2 Disconnect the terminal block wiring, the communication cable, and the printer
cable. If a memory unit or interface unit is mounted, remove that unit also.
3 Loosen four screws at corners on the rear face of the NT631C, and remove the
rear case.
Be careful not to lose these screws.
From this step on, exert added care not to touch any electronic parts or printed
circuit boards inside the unit. Otherwise the PT may sustain static damage.
4 Disengage two backlight connectors at the top and the bottom, and pull out two
touch panel cables at the top.
Section 11-3
621