71Schedule does not turn off the TV at the set time• Check schedule on/off function (it must be set to On).• Check to make sure clock is set to the correct time.Blank screen• Maybe the device connected to the input jacks is not turned on.• Try another channel.• Press RESET, in case the picture controls are set too low.No sound, picture okay• Maybe sound is muted. Try pressing volume up button to restore sound.• Maybe TV’s speakers are turned off. Check the Audio Output and Speakers control panel in the Audiomenu.• If using an S-VHS component, remember to also connect the component’s L and R AUDIO OUT jacks to theTV’s L and R INPUT 1 jacks.Can’t select certain channel• Channel may be blocked or not approved in the Parental Controls menu.• If using a VCR, check to make sure the TV/VCR switch on the VCR is in the correct position.Noisy stereo reception• May be a weak station. Use SOUND button to change to mono mode instead of stereo.No picture, no sound but TV is on• Maybe the cable/air function is set to the wrong position.• Maybe a vacant channel is tuned.• If watching VCR (connected only through antenna input), make sure TV is tuned to channel 3 or 4 – same asCH3/4 switch on VCR. Also check to make sure TV/VCR switch on VCR is in correct position.Sound okay, picture poor• Check antenna connections.• Try adjusting sharpness function to improve weak signals.Black Box appears on the screen:• Captioning may be turned on. Check the Closed-Caption Display control panel in the Channel menu.APPENDIX C: Troubleshooting