Lg 32LC46 Backlight cuts out after tv on for 3-4 sec

[matyka]

Re: Lg 32LC46 Backlight cuts out after tv on for 3-4 sec

Hi,resolder all the pins on all 8 transformers and the tv worked for about 30-40 min and now has the same fault.
Dim Voltage =3.291v before and after backlight turns off
BL-ON ??/I could not found .is BR1 the same ?
BR1=2.070v
How I block the protection OZ964GN ?

[Maklaud]

Re: Lg 32LC46 Backlight cuts out after tv on for 3-4 sec

http://english.electronica-pt.com/lcd-repair?p=OZ964

[matyka]

Re: Lg 32LC46 Backlight cuts out after tv on for 3-4 sec

I have a new inverter board and the tv is working now for the last 2 days.
I measures all the 8 transf. on both boards and they are the same readings.

[CapLeaker]

Re: Lg 32LC46 Backlight cuts out after tv on for 3-4 sec

maybe one of those IC's are damaged that sit in front of each transformer.
http://www.shopjimmy.com/cmo-27-d008...-inverter.htm#

[budm]

Re: Lg 32LC46 Backlight cuts out after tv on for 3-4 sec

I wonder about the condition of those 4 filter caps on that inverter board.

[CapLeaker]

Re: Lg 32LC46 Backlight cuts out after tv on for 3-4 sec

that too.

[Maklaud]

Re: Lg 32LC46 Backlight cuts out after tv on for 3-4 sec

I think some of the bad transformers. (I mean inside spark or closes).