LG Electronics LCD 782LS service manual Precaution, Be Careful Electric Shock

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PRECAUTION

WARNING FOR THE SAFETY-RELATED COMPONENT.

There are some special components used in LCD

monitor that are important for safety. These parts are marked on the schematic diagram and the replacement parts list. It is essential that these critical parts should be replaced with the manufacturer’s specified parts to prevent electric shock, fire or other hazard.

Do not modify original design without obtaining written permission from manufacturer or you will void the original parts and labor guarantee.

TAKE CARE DURING HANDLING THE LCD MODULE WITH BACKLIGHT UNIT.

Must mount the module using mounting holes arranged in four corners.

Do not press on the panel, edge of the frame strongly or electric shock as this will result in damage to the screen.

Do not scratch or press on the panel with any sharp objects, such as pencil or pen as this may result in damage to the panel.

Protect the module from the ESD as it may damage the electronic circuit (C-MOS).

Make certain that treatment person’s body are grounded through wrist band.

Do not leave the module in high temperature and in areas of high humidity for a long time.

The module not be exposed to the direct sunlight.

Avoid contact with water as it may a short circuit within the module.

If the surface of panel become dirty, please wipe it off with a softmaterial. (Cleaning with a dirty or rough cloth may damage the panel.)

CAUTION

Please use only a plastic screwdriver to protect yourself from shock hazard during service operation.

WARNING

BE CAREFUL ELECTRIC SHOCK !

If you want to replace with the new backlight (CCFL) or inverter circuit, must disconnect the AC adapter because high voltage appears at inverter circuit about 650Vrms.

Handle with care wires or connectors of the inverter circuit. If the wires are pressed cause short and may burn or take fire.

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Contents Chassis NO. CL-29 Factory Model LB782G Color MonitorSpecifications ContentsBe Careful Electric Shock PrecautionVideo Sync Timing ChartAuto Button Operating InstructionsFront View Rear View Menu ButtonWiring Diagram Back Cover Removal DisassemblyGM5020 Block DiagramDescription of Block Diagram Block Diagram Power Board Adjustment for Edid AdjustmentAdjustment for White Balance Adjustment StartNo Power Troubleshooting GuideNo Raster Pulse ? No Clock Clock Generator Trouble in DPM Main Board Component Side Printed Circuit BoardPower Board Component Side Power Board Solder Side Exploded View Description Exploded View Parts ListAlternative Parts Replacement Parts ListTransistor Power Board Control Board Pin Name Function PIN ConfigurationSchematic Diagram Lvds Micom DC/DC Connector Control Power Jun