LG 60PB4DA Owner's Manual (English) - Page 36
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The audio function does not work. Picture OK & No sound I Press the VOL or VOLUME button. I Sound muted? Press MUTE button. I Try another channel. The problem may be with the broadcast. I Are the audio cables installed properly? No output from one of the speakers I Adjust Balance in menu option. Unusual sound from inside I A change in ambient humidity or temperature may result in an unusual noise when the product 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 I Adjust resolution, horizontal frequency, or vertical frequency. I Check the input source. Vertical bar or stripe on I Work the Auto configure or adjust clock, phase, or H/V position. (Option) background & Horizontal Noise & Incorrect position Screen color is unstable I Check the signal cable. or single color I Reinstall the PC video card. APPENDIX MAINTENANCE Early malfunctions can be prevented. Careful and regular cleaning can extend the amount of time you can enjoy your new TV. Caution: 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 I To remove dirt or dust, wipe the cabinet with a soft, dry, lint-free cloth. I Please be sure not to use a wet cloth. Extended Absence CAUTION G 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. 34