3408/3410/3412 Series Industrial PC System Manual
92
Sharp TFT Flat-Panel Display (Model #LQ12541)
1.
Disconnect the power cable, as well as any other external cables.
2.
If the unit does not incorporate a touchscreen, go to Step 5. If the unit incorporates a
touchscreen, unscrew the three back cover mounting screws (refer to the figures in
Chapter 3 if you need help locating these screws).
3.
Slide the back cover toward the I/O panel, and lift off.
4.
Disconnect the cable connected to the touchscreen connector (TCH1) at the top of
the unit and/or the keypad connector.
5.
Set the unit with the front panel down, and loosen the four captive screws holding
the flat-panel display carrier to the front panel. These screws remain attached to the
carrier.
6.
Carefully lift off the carrier.
7.
Flip the unit over to expose the flat-panel display.
8.
Disconnect the two bulb connectors attached to the inverter board.
9.
Locate the bulb assembly on the top edge of the flat-panel display.
10.
Unscrew retainer screws from attaching tabs at each end of the bulb assembly.
11.
Slide out the bulb assembly.
12.
Carefully slide the new bulb assembly into the opening from which the old assembly
was removed and align with retainer screws.
Note
We recommend that you replace both bulb assemblies at the same time.
13.
Repeat steps 11 and 12 replacing the bulb assembly on the bottom edge of the flat-
panel display.
14.
Reconnect bulb connectors.
15.
Torque down retainer screws.
16.
Complete reassembly.
