Samsung 40" lcd screen problem

[netdent]

picked up this 40 inch lcd with screen problems, when first turned on screen is mostly lines and white patches fading etc, once warmed up its picture perfect? however on the left side looking from the front putting presure on the top can make that part of the screen freeze or go completey white as in the whole screen, I realise its to do with the board that runs along the top of the panel, can this be bodged in anyway? as in packing the frame with rubber or whatever?

thanks Ronnie

[Kilroys]

With this fix I have succeed to fix a 40" and a 46" Samsung.
After loosing the srews holding the metal frame, lift only the part
where you can access the sleeves. On both 40 and 46 it was the first lefthanded
sleeve that was extreme sensitive.

[netdent]

Thankyou< I have managed to cure the problem by putting some rubber foam on the first ribbon cable, the tv functions properly but I now have a thin pink and green line on that section (left side)

Ronnie

[sparky]

hi
prob screen gone
dave

[Turnip]

Hi Sparky,

Tried the same with Blue Tack and carpet underfelt -

Total rubbish as you suggest, but got lots of spare underfelt - Chris.

[daz]

hi chris + sparky
ive 2 sets for repair in the past week, i like yourselves was not convinced about this repair method  with dicky connections on the screen, packed the offending ribbon connector a slice of a hard foam block which i think came out of an old crt tv, god knows what it did, but so far both sets working ok, perhapse you should try experimenting with different materials
still dont think they will last but made a few quid and told customers no warranty, they seemed game to take the risk.
daz

[Turnip]

Hi Daz, and thanks.

Had this thought that the panel at the top of the screen was the place for the carpet underfelt. Later gathered that those black rectangular bits on the flexies weren't anti-parasitic lozenges but actual drive chips that became un-stuck with time and heat, giving us pain and no gain.

Haven't got 50X specs suggested so accept the thought.

Guess you are talking about Main to LVDS ribbon stuff  ?  - Chris

[astracat]

hi all sorry to butt in on this post
turnip did you get my email about panel 17mb12 as still waiting for a reply have p/order ready to post if
it will cover it
thanx
astracat

[daz]

hi chris
stuck one pad on the chip you mentioned embedded in the ribbon and a pad on side were the ribbon connects to the thin pcb at the top of the screen, used double sided tape to keep them in place while i reassembled the screen, have tried just one pad in the past with no success but adding the second pad worked on the last two i tried.
still doubtful its a permanent solution.
daz

[Turnip]

Hi Daz, and thanks.

Get quite a few re-cyclers in with screen faults and would be nice to make a pound - will make it with the tape - only has to last three months.

Hi Astracat - sorry not confirming panel recently posted but temporarily lost your Email addy - PO is fine but a note is cheaper - Chris

[tellyman]

  i am on the wrong forum this is for the butchers hackit and slashit no wonder the trade gets a bad name

[Turnip]

Hi T/M,

Idea I think is to discover reasons for screen failures and try repair if possible. Never know for sure how long such a repair will last without trying.

Been in the trade since (18) '58 and still going - mainly because I try do it well and cheap, and don't move address to avoid comebacks.

Most other local chaps couldn't make the trade pay sufficiently and quit 20 years ago but feel that when I'm 90 will have enough in the pension pot to get one of they new 'lectric soldering irons.

Less holy than some, maybe - Chris.

[tellyman]

Hi chris sorry for not replying have been all over the place like a mad womens draws I am notagainst a modification or two after all manufacturers do it all the time they make more c**k ups than anyone keep well see you soon.


Tony
 

[jimca007]

must say i was sceptical about this " fix " but tried it using the thermal rubber or whatever the hell material it is you find on the rear of LG plasma boards and I must say it worked a treat so hats of to whomever decided to " think outside the box " and employ the blue peter repair school techniques !