LE32R88BDX/XEU - V315B1-C01 - Solarisation.

[Turnip]

Hi folks,

Have one of these in with pretty severe solarisation. Suspect it's the T-con, but not totally sure. Wonder if there's an easy mend for the panel - Note a chap on the Flea does it for a price.

Any thoughts ? - Thanks - Chris.

[t1412]

hi chris try cleaning the lvds cable, and use some folded up a4 paper acts like sandpaper ,have a good xmas

regards
shaun    

[t1412]

hi chris try cleaning the lvds cable, and use some folded up a4 paper acts like sandpaper on the tcon board ,have a good xmas

regards
shaun    

[Turnip]

Hi Shaun, and thanks,

Like your idea using paper - not yet tried. Usually use a glass fibre pencil for such things, really great with those horrible long audio slide switches if spray doesn't do the biz, and GF is fairly gentle.

Will give it a go. Was uncertain, for had it been a Neon or Cello, would prob have been a corrupted mainboard Eeprom, and Sammy Eeproms are known for problems when the PS caps are doubtful.

Thanks again - Chris.

[downunder]

Hi Chris,

Typically a gamma chip fault. Does it have our old friend, the AS15 chip on the T-con?
Could also be bent options in the eeprom, like wrong screen size. Ever hopeful....

Bruce

[Turnip]

Hi Bruce,
Absolutely right again - An AS15-G chip lurking on the t-con - Thanks - Chris.

PS - And they're cheap at a quid, just a bother to change without wreaking the print.

[downunder]

Hi Chris,

Thought you were more fastidious than that....."wreaking the print"......or have you partaken of the turnip wine again. And you actually edited your post.

However, I do agree, especially those that had a copper pad on the underside of the IC. Recently tried to remove one on an el-cheapo brand where I had to apply so much heat that the surrounds of the chip were totally demolished. But, trying as always to earn the needy moolah.

Bruce

[sparky]

Hi think emos do a repair service

[Turnip]

Hi Bruce and Sparky,

'Natch I meant reeking havoc print-wise, but confess had the spell thingy turned orf. Note that chap of Flea mends them but will check Emos - Thanks again - Chris.

PS - Hope not a copper pad, last one I had was on a Pure One Mini, where managed to get the miniscule audio chip off OK, but no way could re-solder the pad, even with LMP solder and several print-through holes. Other problem in that case was the 8 pins didn't extend from the underside of the chip, so not sure if I'd got at them at all - Fun though.

Much later - Got the chip for 99p and of course it has the heat sink pad, so doubt I can sort it without serious gear, as guess needs 300+C to get it off the panel using Lead Free solder, as can't float LMP under the chip to free it.

Think to check out serious gear, but as only have a few such per year, and the panels are all of different dimensions, guess would take some time to make a profit, unless I stick to T-cons using this notorious chip.

Think bite the bullet this time, get a good T-con from The Flea, and make only a modest profit, even though the thought of £30+ for a T-con mend still seems attractive.

[downunder]

Hello Sparks,

We don't have emos over here in the antipodes. We do have emus, however. Not sure if they have any talents, though.        Bruce

[sparky]

We had Rod Hull till he fell of roof fitting a aerial sadly passed away,so that's were emu ended
Happy New year

[Turnip]

Hi Sparky,

You're becoming whimsical, but def a good ending for Rod Hull - He was almost as funny as Stanley Unwin.

Checked Stan's grave, as one does, and was impressed as he held in death, stuff that made him famous in 'Worker's Playtime'

While ago I know, but as you're now retired, you will probably recall in some horror - Joys of the 50s BBC, when 'The Light Programme' - And The 'Clitheroe Kid' was the best young chaps could expect on a Sunday.

Jeeze - Times then were dire, surprised we've made it so far, and can still grin a bit - Chris.

PS - Think a piccy to save folks hunting.

[Turnip]

Hi Folks,

Had a look on YouTube, and some Spaniards are changing the chips all the time, with just hot air and some liquid flux - No English translation yet though.

Think get a decent USB microscope as chip is pretty small, and can only see it with glasses, and can't see any pins at all, though guess it has some, as they mostly do.

Well, it's a challenge, and the chip is only 99p from China, as guess it's a known problem.

Will Natch' report outcome - Chris.

Had another one in today 14/1/15 -  A Sony KDL37U4000 with an AS15-F chip - Getting some ChipQuik from the Flea, and hope chip doesn't have the thermal grounding bit, as can yet only heat from above, where ChipQuik isn't so useful.