Mulja tv repair portal
Equipment Repairs => LCD TV forum => Topic started by: WILLYAM1 on February 02, 2009,15:22:26
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i have sharp LCD 32dg8ea .
the problem is: t.v in stby led is red .
by pushing main power on or power by remote led turning green no screen no back light led turn again to red to stby position.
power supply no 24v mesured 6v i found 2 diode IGBT part no' T03D63(in schamatic shaws STOD170)
i pull thos diodes and now i have 24v 'but steel not working no screen 'no back light.
I check INV ON SIG (novoltage signal)by conecting 2V from ext power supply to INV ON SIG in the inverter pcb back light is on but steel turn to stby .
very hard to repair or check the main board.
any help will be greatfull
willyam1