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Equipment Repairs => LCD TV forum => Topic started by: Keith on July 20, 2010,04:15:37

Title: Samsung LE32A436
Post by: Keith on July 20, 2010,04:15:37

Hi,

This set has no sound or picture, no OSD.
The fuse on LVDS board was open, but there is no supply from AV board to LVDS board. PSU outputs are all OK.

Any ideas??

Thanks

Keith

Title: Re: Samsung LE32A436
Post by: daz on July 22, 2010,08:11:26

hi
is there any voltage with the lvds cable unplugged?
had many problems with shorts on the lvds pcb, perhaps voltage being dragged down?
but did have one samsung where both av and lvds pcbs had to be replaced for a similar problem.
daz

Title: Re: Samsung LE32A436
Post by: Keith on July 24, 2010,03:27:54

Thanks Daz, no supply voltage only signal voltages, I am thinking it needs both boards!

Title: Re: Samsung LE32A436
Post by: stellaman on July 24, 2010,06:48:09

There was a posting a while ago on another site about a diode, maybe a zener , on the LVDS PCB going s/c. May be worth checking.

Dave

Title: Re: Samsung LE32A436
Post by: Turnip on July 24, 2010,13:09:43

Hi Dave,

Checked about, no info on screen drive zener diodes found, but keen for Quuq folks - Chris.