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Equipment Repairs => LCD TV forum => Topic started by: buncey on October 08, 2010,10:55:03

Title: Samsung lcd dark on one side ?
Post by: buncey on October 08, 2010,10:55:03

good afternoon guys.

i have got a  Samsung lcd model LE40f86BDX.

lcd: LTA400HH-L01

when cold the right side of tv is very dark however it will clear up once tv has been on for about 10 mins and tv will work ok.

also i have noticed when cold i can get the picture to go ok without waiting to warm up and get picture ok straight away if i tap the back of the tv?.  i checked all obvious  cables inside and all secure.

Title: Re: Samsung lcd dark on one side ?
Post by: davenjax on October 08, 2010,11:29:36

hi mate could it be dodgy ccfl holders ?? does that set have a master and slave inverter ?

Title: Re: Samsung lcd dark on one side ?
Post by: buncey on October 08, 2010,12:35:11

hi no seperate invertor boards just 1 long main invertor board of the left side of panel.

Title: Re: Samsung lcd dark on one side ?
Post by: sparky on October 08, 2010,13:01:19

hi
have just scrapped 40" sammy ,screen bust this had two inverters same
model one was  hidden behind screening can
dave

Title: Re: Samsung lcd dark on one side ?
Post by: buncey on October 08, 2010,13:12:49

thanks sparky i guess its time to strip apart the lcd then?

also on a side note, i have just noticed when the picture is on there looks to be like a faint grey water type stain inside the screen.

anyway heres a piccy of rear of set.

Title: Re: Samsung lcd dark on one side ?
Post by: sparky on October 08, 2010,16:43:02

hi
it looks like only 1 inverter panel sorry prob screen faullty if
fingers marks on screen
dave

Title: Re: Samsung lcd dark on one side ?
Post by: davenjax on October 09, 2010,03:14:45

would the screen be faulty ? if he taps the back and the fault clears there must be a poor connection somewhere i could and probably am wrong but if it was mine i wouldnt write it off yet

Title: Re: Samsung lcd dark on one side ?
Post by: davenjax on October 09, 2010,03:16:26

i would be checking the ccfl holders before i scrap it if it were me

Title: Re: Samsung lcd dark on one side ?
Post by: buncey on October 09, 2010,03:33:55

davenjax i agree  :dubbio: i will strip it all down today and have a look buddy.   :13:

Title: Re: Samsung lcd dark on one side ?
Post by: buncey on October 09, 2010,07:58:27

can you buy the ccfl tubes?

Title: Re: Samsung lcd dark on one side ?
Post by: davenjax on October 09, 2010,08:55:08

hi mate i know chs stock them depending on the type but i reckon you just need to tweek the holders to get a better connection as they work when you tap the set you've nothin to lose id give that a try first.rgds dave

Title: Re: Samsung lcd dark on one side ?
Post by: stewart4hansen on October 10, 2010,08:10:37

Every one knows that Samsung provides the best quality product..
Samsung dark lcd tv is one of the best example to all other products.

Title: Re: Samsung lcd dark on one side ?
Post by: Turnip on October 10, 2010,11:52:05

Hi Stew,

Just can't see it yet - lighting a Samcandle - still no piccies, but still believe (but only a small UK'ish like  bit) - Chris.

Title: Re: Samsung lcd dark on one side ?
Post by: obagama on October 31, 2010,01:32:56

Hi buncey,

Your issue is a fault on your backlight.

The easiest repair is to buy a cracked screen and swap your front screen with the cracked one since it is very tricky installing the bulbs on its own.

Hope this helps.

Thanks