toshiba 42wlt66 picture loss when warm

[davenjax]

hi i have a toshiba 42wlt66 which runs fine for about 20 mins untill warm then picture will flash/ pause and gradualy fade to black with occasional lines across the screen i suspect the tcon but would like a backup on this theory as the board is 60 quid second hand any help please ? thanks

[Turnip]

Hi D/J,

May well have a screen drive board - had a screen smash from recyling centre. Mine is a T420XW01, what's your one   ?

Yours, ever hoping for a fortune post-wise - otherwise blanket resolder screen drive panel chips - has done it for me - occasionally   - Chris.

[davenjax]

hi chris thanks for the reply mate iv looked up your drive panel and mine is different mine is an fhd-cm e88441 i can do a piccy if you want for future reference .i found a large crack round pin 15 at t820 on the psu but im not that lucky. as the audio is constant ie no interfearence would you agree with my theory ? rgds dave

[fix2003]

is this on both aerial and scart i/ps ??

[davenjax]

hiya mate yeah same on all inputs but sound is constant so audio signal is good main board must be functioning just lcd signal is failing hence finger is pointed to the lvds board just looking for another opinion before i weigh out cash on a new board rgds dave

[Turnip]

Hi Dave,

Will be nice to learn how it turns out (as I'm not paying) This pausing of pic/faulty screen biz makes me wonder, as I thought LCD screen merely displayed what LVDS sent to it.

Guess some Quuqer will sort me out - Prob our Brian, again  - All the best - Chris.

[davenjax]

well im gonna blanket solder the chips on the tcon as you suggested chris ill keep you posted .let me know what you want to do about that toko inverter .dave

[davenjax]

hi people does anyone have this tcon panel available by any chance. cheers dave

[davenjax]

hi all hope this wil be useful to some one please find attached the internals of a toshiba 42wlt66 the lcd panel is a chi mei v420 h1 rev 2.0 there are two full size inverters either side of the screen

[Turnip]

Hi Dave njax,

Hope you get a nice camera for Xmas - thanks for the piccies - no panels - yet - Chris.

[davenjax]

yeah i know had to capture with my mobile as my samsung camera ceases to function typical

[Turnip]

Hi Dave,

Hope it isn't a 40R88BDX or you'll be whistling moonwise - Chris.

[davenjax]

no mate its not sounds like i may have dodged a bullet then

[davenjax]

standby people the tcon has arrived from canada ill update shortly

[davenjax]

hi all this tv has been running for 2 hours now without fault where as before would run for about 40 mins ...lookig promising