LG 37LC4R Owner's Manual - Page 79
APPENDIX, Picture OK &
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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 ■ A change in ambient humidity or temperature may result in an unusual noise when inside the TV the TV is switched on or off and does not indicate a fault with the TV. There is a problem in PC mode. (Only PC mode applied) The signal is out of ■ Adjust resolution, horizontal frequency, or vertical frequency. range. ■ Check the input source. Vertical bar or stripe on background & Horizontal Noise & Incorrect position ■ Use Auto configure or adjust clock, phase, or H/V position. Screen colour is unstable or single colour ■ Check the signal cable. ■ Reinstall the PC video card. APPENDIX 77