Sony KDL-32U4000 T-con swap with a KDL-32v4500, possible ?

[Dannyx]

Greetings folks, would like a bit of advice on this Sony KDL-32U4000 which I think has a bad T-con board or more specifically a failed gamma IC. The symptoms are what you see in the first picture I've attached: the colours are off (actually more so than they appear in the pictures - "solarized" picture as it's called) and the picture is slow to "refresh", that is, when something moves or disappears, be it a menu or in the case of my tests the mouse cursor, it leaves behind "ghosts" that take a few seconds to disappear. If the picture is still then it's unnoticeable, but what good is a TV on which you can't view moving images ? :| The T-con board is a 320WTC2LV8.4. Rather than replacing the gamma IC (which is a goose chase in its own, since I'm not entirely sure which one it is) I decided to find the whole board and I did find something on an auction site, but it's advertised as coming out of a KDL-32v4500 TV while mine is a KDL-32U4000 (no, it's not a typo - that one is a V and mine is an U). What made me consider this is that the boards are the same (320WTC2LV8.4) with the exception of some of the markings on them (just take a look at the pictures), but the models of the TVs differ. Don't know if you can see it too well, but to the right of the LVDS connector, there's a small square with a digit inside it - my board has a 4 and his board has a 7, just so you can tell them apart. Are T-con boards "coded" somehow to match a specific panel ? Will this board still work on the U model ? It's not very cheap, so I wouldn't want to waste money on it. Cheers.

[Andrew F. Ali]

Re: Sony KDL-32U4000 T-con swap with a KDL-32v4500, possible ?

As far as what I can see, they are alike physically. However. the eeprom may have different software to match the different screen model Nos.

[hienton2]

Re: Sony KDL-32U4000 T-con swap with a KDL-32v4500, possible ?

Swap eeprom if they look alike

[Dannyx]

Re: Sony KDL-32U4000 T-con swap with a KDL-32v4500, possible ?

Swap eeprom if they look alike

I assume the eeprom chip is somewhere on the main board.

[Andrew F. Ali]

Re: Sony KDL-32U4000 T-con swap with a KDL-32v4500, possible ?

There is an eeprom on the T-CON Bd...that is the one to exchange....Although there is another eeprom on the Main Bd...but that one seems to be OK.

[Dannyx]

Re: Sony KDL-32U4000 T-con swap with a KDL-32v4500, possible ?

There is an eeprom on the T-CON Bd...that is the one to exchange....Although there is another eeprom on the Main Bd...but that one seems to be OK.

Which one do u think it is ? The 8-pin IC in the top left ? That would be really easy to swap in fact. Just getting the hang of T-cons, since I've mostly fixed power supplies so far

[budm]

Re: Sony KDL-32U4000 T-con swap with a KDL-32v4500, possible ?

Do you have the LCD panel model numbers of both of them?

[budm]

Re: Sony KDL-32U4000 T-con swap with a KDL-32v4500, possible ?

"320WTC2LV8.4." is the BLANK PCB P/N which can be stuffed many different ways to make many PCBA for different LCD Models, the numbers on the barcode are for the PCBA.

[Dannyx]

Re: Sony KDL-32U4000 T-con swap with a KDL-32v4500, possible ?

"320WTC2LV8.4." is the BLANK PCB P/N which can be stuffed many different ways to make many PCBA for different LCD Models, the numbers on the barcode are for the PCBA.

...and seeing how those bar codes do not match, it's almost certain it won't work. Another difference I spotted is that the "donor" TV has a single missing pin on the LVDS connector starting from right to left, whereas mine has 2 missing ones. As for the panel model, the ad for the parts TV (the V model) shows a sticker which reads "KDL-32v4500 E", so perhaps the panel model is the same as the TV model ? No, it's not the sticker on the back cover - it's clearly slapped onto a metal frame, so it's inside the cabinet. I can't really tell if there are other stickers to look at, since I don't have the TV on hand right now and the ad doesn't state any models either. Perhaps the EEPROM idea is feasible after all...makes sense at least.