Zenith Z20LCD1 Operation Guide - Page 25

Troubleshooting Check°list Picture OK & No sound No output from one of the • Pre_ 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? • Adjust Balance in menu option. Unusual sound from inside the • A change in ambient humidity or temperature may result in an unusual noise when the prc_uct is turned on or off and does not indicate a fault with the product. _J (Only PC mode applied) The signal is out of range. • Adjust resolution, horizontal frequency, or ve_ical frequency: • Check the input source. Ve_ical bar or stripe on background & Horizontal Noise & Incorrect • Work the auto adjust or adjust c_ock, phase in video noise,or horizontN vertical in post[on.(option) Screen color is unstable or ° Check the signaUcane. • Reinsta[_ the PC video card_ single color J As an }{NF,RGY S'E¢XR Pa_tner LGE U. S. A.,lnc. has dete_ined that this product :meets _he ENERo GY STAR gu:idelines [k_r 25