Troubleshooting ChartBefore you call for service, determine the symptoms and make a few simple checks shown below.SymptomsPicture Sound CheckSNOWY PICTUREN--MULTIPLE IMAGETINTERFERENCENORMAL PICTURE.,:.* . :..::':.'-'_ "i"NO VIDEONO PICTURENO COLORBLUE PICTUREBLACK BOX INPICTURE\NOISY SOUNDNORMAL SOUND\NOISY SOUNDXNO SOUND\NOISY SOUNDXNO SOUNDNORMAL SOUNDXNO SOUND- ANTENNA LOCATION AND/OR CONNECTION- ANTENNA DIRECTION AND/OR LOCATION- ANTENNA LEAD-IN WIRE- ELECTRICAL APPLIANCES, LIGHTS, CARS AND TRUCKS- DIATHERMY AND OTHER MEDICAL EQUIPMENT- VOLUME CONTROL SETTING- MUTE CONTROL (IF APPLICABLE)- TRY ANOTHER CHANNEL- TV SPEAKERS BUTTON (IF APPLICABLE) IN THE OFF MODE- TV OR CABLE TUNING MODE SET TO PROPER SETTING- ANTENNA INPUT CORRECT (IF APPLICABLE)- CHECK THAT AC POWER LINE IS PLUGGED INTO AC OUTLET- BRIGHTNESS & AUDIO CONTROLS SET PROPERLY- TRY ANOTHER CHANNEL- COLOR CONTROL SETTINGS- TRY ANOTHER CHANNEL- RECEIVER IN VIDEO MODE WITH NO SIGNAL (IFAPPLICABLE)\SOUND- CC (CLOSED CAPTION) IN TEXT MODE- SELECT CAPTION OFF MODE TO ELIMINATE BLACK BOXShould this unit turn ON momentarily and then turn OFF, or fail to operate, unplug the AC cord and contact your Authorized IServicer for repairs. IProlonged power interruption causes the following features to reset to their factory preset state.FEATURE FACTORY PRESET STATE I FEATURE FACTORY PRESET STATE iPOWER OFF I SLEEP TIMER OFFCLOCK NOT SET TIMER OFF_anasonic CompanyJivision of Matsushita ElectricCorporation of AmericaOne Panasonic WaySecaucus, New Jersey 07094Panasonic Company (West)of AmericaDivision of Matsushita ElectricCorporation of America6550 Katella Ave.Cypress, CA 90630Matsushita Electricof Canada Limited5770 Ambler DriveMississauga, Ontario L4W 2T3CanadaPanasonic Sales CompanyDivision of Matsushita Electricof Puerto Rico, Inc.Ave. 65 De Infanteria, KM 9.7Victoria Industrial ParkCarolina, Puerto Rico 00630