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-   -   Sony KD-X497000D showing purple spots? (https://www.badcaps.net/forum/showthread.php?t=85816)

RooTV 07-04-2020 03:40 AM

Sony KD-X497000D showing purple spots?
 
1 Attachment(s)
Hi Guys

Just wondering what might be wrong with this tv. I only have a pic so cant get too in-depth withe the testing.

Just after rough ideas.

The Tv is a Sony KD-X497000D

The info I have is that it is showing "purples spots" on the tv that are particularly visible on white screen.

I think it may be burned out LED's but not sure. I have had a few tv's before that have had LED issues, but it was always - 2 blown led's, dark screen - so I dont know if a tv will even light up like this if it was a few blown led's?

Ideas?

diif 07-04-2020 04:01 AM

Re: Sony KD-X497000D showing purple spots?
 
Purple or blue LEDs on a TV occur when the phosphor coating has been burnt oway due to being over driven.

RooTV 07-04-2020 04:16 AM

Re: Sony KD-X497000D showing purple spots?
 
Quote:

Originally Posted by diif (Post 972076)
Purple or blue LEDs on a TV occur when the phosphor coating has been burnt oway due to being over driven.

So the led's have been set too bright and its a damaged screen and not fixable?

dick_barton 07-04-2020 04:48 AM

Re: Sony KD-X497000D showing purple spots?
 
One problem is that the light emitted from the led turns blue when they have been overdriven.

nomoresonys 07-04-2020 04:54 AM

Re: Sony KD-X497000D showing purple spots?
 
The fix is backlight replacement if the leds have turned blue/purple, a current mod would be advisable too or at least set the backlight to as low as tolerable.

RooTV 07-04-2020 05:12 AM

Re: Sony KD-X497000D showing purple spots?
 
so its not a panel issue and is fixable with led replacement?
hmmm

dick_barton 07-04-2020 05:18 AM

Re: Sony KD-X497000D showing purple spots?
 
Do a forum search using "purple led" as the search term and you should find plenty of info on this.

nomoresonys 07-04-2020 05:56 AM

Re: Sony KD-X497000D showing purple spots?
 
No not panel fault, just overdriven leds.

RooTV 07-04-2020 06:22 AM

Re: Sony KD-X497000D showing purple spots?
 
They want $150 for this tv and a glass unit it is sitting on (that MUST be taken with the TV lol) so maybe it is worth it?

49" 4K smart tv for $150 + new led's

dick_barton 07-04-2020 07:22 AM

Re: Sony KD-X497000D showing purple spots?
 
Have you priced out the cost of replacement led strips?

nomoresonys 07-04-2020 08:05 AM

Re: Sony KD-X497000D showing purple spots?
 
Tell m you will give them a c note and get that junk out of their way, that's ONLY if the stand is REAL nice. Because after all we have a global recession that goes with this fugging pandemic, so money is in short supply.

nomoresonys 07-04-2020 08:12 AM

Re: Sony KD-X497000D showing purple spots?
 
They might be a rarer commodity down under, around here they give away that type every day.

neilc6 07-04-2020 08:21 AM

Re: Sony KD-X497000D showing purple spots?
 
https://www.badcaps.net/forum/showthread.php?t=80139

RooTV 07-04-2020 02:58 PM

Re: Sony KD-X497000D showing purple spots?
 
Quote:

Originally Posted by nomoresonys (Post 972140)
They might be a rarer commodity down under,

They actually are.

Around my neck of the woods a 4 - 6yr old 50" led (non smart) would go for around $150 to $200 and thats a working one!

RooTV 07-04-2020 03:03 PM

Re: Sony KD-X497000D showing purple spots?
 
Quote:

Originally Posted by dick_barton (Post 972126)
Have you priced out the cost of replacement led strips?

Havent been able to find the right part number for this one yet.

nomoresonys 07-04-2020 03:48 PM

Re: Sony KD-X497000D showing purple spots?
 
That's a good question, I'm not seeing any backlight strips that match this model.

nomoresonys 07-04-2020 04:04 PM

Re: Sony KD-X497000D showing purple spots?
 
.

nomoresonys 07-04-2020 04:38 PM

Re: Sony KD-X497000D showing purple spots?
 
Might be a match there somewhere? : https://www.aliexpress.com/wholesale...strips+49+inch

RooTV 07-04-2020 09:54 PM

Re: Sony KD-X497000D showing purple spots?
 
But where?
Im gunna get annoyed if I have to pull it all apart to get a part number.

Just 2 chances for me to break another bloody screen

budm 07-04-2020 10:05 PM

Re: Sony KD-X497000D showing purple spots?
 
Like I said before, get the model number of the LCD panel.


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