Mulja tv repair portal
Service manuals & datasheets => LCD TV forum => Topic started by: buggsy on July 12, 2014,10:55:56
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HI GUYS ANYONE WORKED ON A KDL 46 HX 823 46" SET
POWER UP STANDBY 4 FLASHES.....THIS MESSAGEW INDICATES BACK LIGHT PROBLEMS BUT DO NOT KNOW IF APPLYS TOT HIS ONE.
OVER COMPLICATED AS USUAL MAIN POWER BOARD, INVERTER CONNECTED TO LDVS
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The HX823 is edge lit by LEDs. Code 4 is indeed a backlight problem. A test of backlights is to remove the LVDS cable, then hold the Power button on the TV as you plug it into the mains. You should get 2 seconds of backlight, then they go off. Can be repeated ad nauseum . May give you a chance to spot any bad LED strip.