Author Topic: Samsung LE32A436 (Read 5270 times)

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

Mulja tv repair portal · « **on:** July 20, 2010,04:15:37 »

daz · « **Reply #1 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

Keith · « **Reply #2 on:** July 24, 2010,03:27:54 »

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

Mulja tv repair portal · « **Reply #2 on:** July 24, 2010,03:27:54 »

stellaman · « **Reply #3 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

Turnip · « **Reply #4 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.

Mulja tv repair portal · « **Reply #4 on:** July 24, 2010,13:09:43 »

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