Read Sharp LL-T155A (serv.man2) Service Manual online
[4] Nomenclature and functions
[Front part]
Power-on lamp
Light comes on when the power supply is turned on.
The light is green in the normal display mode and orange in the
power save mode.
and buttons
1) Display the adjustment menus.
2) Switch over the adjustment menus (MAIN MANU and SUB
MENU)
3) Change the setting of the adjustment option selected.
DOWN and UP buttons
1) Display the adjustment menus
2) Select adjustment items
[Rear part]
Power supply connector
Make sure to use the AV power supply cord supplied with the unit.
Power supply switch
( | ) : The power is turned on. (The power-on lamp comes on.)
( ) : The power is turned off.
Signal cable
This cable is used to connect the monitor to the analog RGB output
connector of the computer.
USB DOWN connector
This is sued to connect the monitor to USB devices.
USB UP connector
This is used to connect the monitor to a computer.
CHAPTER2. REPLACING LAMPS
(Removing LCD module)
(Removing LCD module)
1. Replacing lamps
·
After removing the LCD module from the unit according to 2. Re-
moving the LCD module, replace the lamp units.
moving the LCD module, replace the lamp units.
·
Replace the lamp units using the following replacement procedure,
referring to Fig.1 (enlarged view) and Fig. 2 (overall view).
referring to Fig.1 (enlarged view) and Fig. 2 (overall view).
·
There are two lamp units at the top and bottom of the monitor.
·
Wear finger sacks when doing this work, not to contaminate or
damage the LCD panel. Use caution prevent the entrance of dirt
or dust into the module.
damage the LCD panel. Use caution prevent the entrance of dirt
or dust into the module.
[Replacement procedure]
Turn the module over and remove the screws A in Figs. 1. (1 screw
for each unit). Put a finger on the concave B and remove the lamp
unit in a straight line.
unit in a straight line.
·
Use caution not to apply undue force on the lamp.
Replace the lamp unit with a new one.
Reinstall in the reverse order of disassembly.
·
Tighten the screw and make sure the lamp unit won’t move.
1
2
3
1
3
2
1
5
4
B
Drawing
direction
direction
Screw A
Fluorescent
lamp lead wire
lamp lead wire
Fig. 1
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