Important-LCD-Backlights on, no picture, or turning off after a few seconds followed by blinking red light on TV.–Bad T-Con BoardīELOW ARE REAL CASE HISTORIES OF TV FAILURE AND REPAIRSģ29 Cases, for Dynex, Emerson, Funia, Hisense, Hitachi, 1 ILO, Insignia, JVC, LG, Magnavox, Panasonic, Philips, Polaroid, RCA, Sansui, 1 Scepter, Samsung, Sanyo, Sharp, Sony, 1 Supersonic, Sylvania, TCL, Toshiba, 1 Trutech, 2 Viewsonic, 2 Viore, Vizio, Westinghouse, TV’sĭynex DX-L22-10A Symptom- Turn on, Blue light comes on, no picture, no sound Repair-Replace Main Boardĭynex LED/LCD TV Symptom- Good picture no sound Repair- Checked menu and found speakers turned off. If you hear Beeping, it is the Main Board. For Philips, Magnavox, Emerson, Dynex TV’s: If you hear Chirping, it is the Power Board.This is called HOT PLUGGING and it will damage your main board. ![]() ![]() NEVER connect cables to your TV while it is turned on.Two important things to know before starting:
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