NT31C-ST143-EV3 Omron, NT31C-ST143-EV3 Datasheet - Page 259

• Manufacturer Part Number: NT31C-ST143-EV3
• Description: 5.7 8-Color Dsp,STN,Ivory,Eng
• Manufacturer: Omron

Specifications of NT31C-ST143-EV3

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Maintenance of the NT31/NT31C
Replacing the Backlight
242
1,2,3...
Use the following procedure to replace the backlight.
Replace the backlight by following the procedure given below:
Procedure
1. Turn the power supply to the NT31-ST121@-EV2/NT31C-ST141@-EV2
2. Disconnect the terminal block wiring, the communications cable, and the
3. Open the cover of the CFL unit housing by following the procedure de-
4. Remove the CFL unit by following the procedure described below.
• Do not carry the backlight unit by holding only its cable, or pull on the
• Do not disassemble the product to repair or modify it.
cable. Do not subject the backlight to excessive force or shock.
OFF.
printer cable. If a Memory Unit or Interface Unit is mounted, remove that
Unit also.
scribed below.
a. Unscrew the screw in the center of the cover.
b. Open the cover while pressing the tabs at its left and right inward.
c. When the cover has opened far enough, remove it.
a. Disengage the connector.
Switch OFF the NT31-ST121j-EV2/NT31C-ST141j-EV2
power before replacing the backlight. Otherwise you could
sustain an electric shock.
Do not touch the backlight immediately after switching
OFF the power supply.
Otherwise burn injuries may result due to the high
temperatures.
Also, discharge the static electricity from your body before starting the
work.
The screw is designed so that it cannot be removed, but if it does come
out for some reason and falls inside the PT, it must be extricated with-
out fail.
b
WARNING
CAUTION
b
b
Section 7-3