LG 50PC3DH Owners Manual - Page 66
Maintenance
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Reference The audio function does not work. Picture OK & No sound • Press the VOL or VOLUME button. • Sound muted? Press MUTE button. • Try another channel. The problem may be with the broadcast. • Are the audio cables installed properly? No output from one • Adjust Balance in menu option. of the speakers Unusual sound from inside the product • A change in ambient humidity or temperature may result in an unusual noise when the product is turned on or off and does not indicate a fault with the product. There is a problem in PC mode. (Only PC mode applied) The signal is out of range. Vertical bar or stripe on back- ground & Horizontal Noise & Incorrect position • Adjust resolution, horizontal frequency, or vertical frequency. • Check it whether the signal cable is connected or loose. • Check the input source. • Work the Auto configure or adjust clock, phase, or H/V position. (Option) Screen color is unstable or single color • Check the signal cable. • Reinstall the PC video card. Maintenance - Early malfunctions can be prevented. Careful and regular cleaning can extend the amount of time you will have your new TV. Be sure to turn the power off and unplug the power cord before you begin any cleaning. Cleaning the Screen 1. Here's a great way to keep the dust off your screen for a while. Wet a soft cloth in a mixture of lukewarm water and a little fabric softener or dish washing detergent. Wring the cloth until it's almost dry, and then use it to wipe the screen. 2. Make sure the excess water is off the screen, and then let it air-dry before you turn on your TV. Cleaning the Cabinet To remove dirt or dust, wipe the cabinet with a soft, dry, lint-free cloth. Please do not use a wet cloth. Extended Absence If you expect to leave your TV dormant for a long time (such as a vacation), it's a good idea to unplug the power cord to protect against possible damage from lightning or power surges. 66