Sharp LC-70LE660U Operation Manual - Page 101

Appendix Troubleshooting Problem No power Unit cannot be operated. Remote control unit does not operate. Picture is cut off/with sidebar screen. Strange color, light color, or color misalignment Power is suddenly turned off. Possible Solution Check if you pressed POWER on the remote control unit. Is the AC cord disconnected? Has the power been turned on? External influences such as lightning, static electricity, may cause improper operation. In this case, operate the unit after first turning off the power of the TV or unplugging the AC cord and replugging it in after 1 or 2 minutes. Is the equipment to be operated by the remote control unit set correctly? Press TV to set the remote control unit to the setting for operating the TV. Are batteries inserted with polarity (+, -) aligned? Are batteries worn out? (Replace with new batteries.) Are you using it under strong or fluorescent lighting? Is a fluorescent light illuminated near the remote control sensor? Is the image position correct? Page 7-1 Are screen mode adjustments such as picture size made correctly? Pages 3-14 to 3-16 Adjust the picture tone. Pages 4-17 to 4-20 Is the room too bright? The picture may look dark in a room that is too bright. Is the sleep timer set? Pages 3-9 Check the power control settings. Page 4-25 The unit's internal temperature has increased. Remove any objects blocking vent or clean. Problem No picture Picture quality of HD programs is poor. The TV sometimes makes a cracking sound. Some Internet functions used on a PC are not available from the TV. Possible Solution Is connection to other components correct? Is the correct input selected? Pages 2-1 Is "On" selected in "Audio Only"? Page 4-25 If the PC image is not displayed, check the following: - When connecting a laptop PC to the TV, check that display output mode of the PC is set to external monitor. - Check the resolution setting on the PC. Is a non-compatible signal being input? Page 7-4 To enjoy HD images from external equipment, you are required to set up HDMI connection or component connection. If the program content is not of HD quality, HD images cannot be displayed. Check that the program you are viewing provides HD images. The HD cable/satellite set-top box may need to be configured to output HD images via cable/satellite. The cable/satellite broadcast may not support a signal resolution of 1080p. This is not a malfunction. This happens when the cabinet slightly expands and contracts according to change in temperature. This does not affect the TV's performance. The TV has only limited functions compared with regular PC browsers. Pages 8-7 to 8-9 ENG 10-6