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Equipment Repairs => LCD TV forum => Topic started by: johnstheone on December 25, 2011,12:43:06

Title: goodmans ld3266d strange screen fault
Post by: johnstheone on December 25, 2011,12:43:06

hi all

anyone know what the cause of this dark square in the centre of the lcd screen is. picture can be seen through the square but colours seem off.  one inch border all around the square is perfectly normal picture.

could it be screen burn?

regards

john

Title: Re: goodmans ld3266d strange screen fault
Post by: johnstheone on December 28, 2011,07:50:39

does nobody have any ideas or opinions on the cause or solution?

John

Title: Re: goodmans ld3266d strange screen fault
Post by: tv tony on December 28, 2011,08:12:55

Well it is a bank holiday, a few of us are lucky enough to get it off, im not one of them, i have been chewing this one over, its a puzzle as the borders are all equal, im on it though
tony walker

Title: Re: goodmans ld3266d strange screen fault
Post by: sparky on December 28, 2011,10:21:38

hi
in the good old days of crt prop shadow mask moved
lcd screen prob u/s
dave

Title: Re: goodmans ld3266d strange screen fault
Post by: tv tony on December 28, 2011,10:34:21

hiya dave, are you back too? its odd how its so uniform on all sides but i am going with your theory though
happy new year
tony

Title: Re: goodmans ld3266d strange screen fault
Post by: sparky on December 28, 2011,12:23:16

hi tony
got xmas day off happy new year
dave

Title: Re: goodmans ld3266d strange screen fault
Post by: Turnip on December 29, 2011,10:58:57

Hi,

In my halcyon days the ion trap magnet was the biz preventing screen burn - guess it's LVDS, what is it  ? Quuq chaps might just have one for modest cash - Chris

Title: Re: goodmans ld3266d strange screen fault
Post by: johnstheone on December 29, 2011,11:26:49

hi and merry xmas and new year to everyone.

thanks for the opinions but as a complete novice i dont have a clue as to what to do about this. seems a shame to just scrap the damn thing, as apart from the dark square the tv works perfectly.

would it be worth putting it in for repair?

john

Title: Re: goodmans ld3266d strange screen fault
Post by: Turnip on December 29, 2011,11:59:08

Hi John,

What LVDS   ?  Give us numbers   - Chris

Title: Re: goodmans ld3266d strange screen fault
Post by: tom66 on January 07, 2012,15:04:04

I have seen LCDs fade from the outside in when LVDS is disconnected or power disconnected; suspect a dodgy T-con. On the T-con possibly a bad step-up rail (shorted or leaky MLCC possible.)