Hi all colleagues
i've got this LG 575LE based on Chassis CL-18 dead after repairing power supply i've got stable 5.1V and all the 4 BA033 are getting 5.1V and produce the 3.3V and everything is ok ,the main fuse in the inverter circuit was alo open and after replacing it and powering the monitor up , the monitor power up normally and has OSD and the picture is normal , the only problem now is the backlight have shimmer and flickering ( flashes on off very rapildy) .
any idea what's wrong here? what may cause this?
is it a faulty inverter or tired lamps ?
is it a capacitor problems in the power supply area?
any tip or help is highly appreciated and thanks in advance
i've the service manual for this model which has the power supply but not the inverter circuit and i can attach it if any one needs it or not available here , didn't check for it.
please help
Kind Regards
i've got this LG 575LE based on Chassis CL-18 dead after repairing power supply i've got stable 5.1V and all the 4 BA033 are getting 5.1V and produce the 3.3V and everything is ok ,the main fuse in the inverter circuit was alo open and after replacing it and powering the monitor up , the monitor power up normally and has OSD and the picture is normal , the only problem now is the backlight have shimmer and flickering ( flashes on off very rapildy) .
any idea what's wrong here? what may cause this?
is it a faulty inverter or tired lamps ?
is it a capacitor problems in the power supply area?
any tip or help is highly appreciated and thanks in advance
i've the service manual for this model which has the power supply but not the inverter circuit and i can attach it if any one needs it or not available here , didn't check for it.
please help
Kind Regards