Sony KDL-52V5100, Left Middle Blur Pre-Warmup, Right Side OK, Top Bar Discolored

[Michale32086]

Yea, with that subject, it's gotta be

OK, 52" Sony LCD... When powered up, the Left and Middle areas are darker and a "blur"... Latent images that linger.. And there is a top bar that is normal for color and no blur...

After the TV warms up (anywhere from an hour to all day depending on ambient temps) the latency/blur goes away, but the lighter horizontal bar remains...

Initially had it hooked up on HDMI ports and it was ALWAYS blurry/latency.. Left it running for days (3-4) at a time.. Last week the HDMI ports quit working, so I hooked up to COMPOSITE and that's when I noticed it got a better picture after warm-up...

I read up on TOM's awesome Guide on Plasmas.. It's got the same type of symptom that Tom describes:

The picture is slow to update (motion blur) and has a purple or lilac tinge to it. When first turned on, it may look like a lava lamp that has not yet warmed up. The screen may not be evenly lit - it may look a bit "foggy". Half of the screen may be more distorted than the other half. When running, it may look like this (excuse the camera shake). This is in about 95% of cases the Z-sustain.

but then I realized I was dealing with an LCD...

I have replaced the buffer (buffer??) boards on the sides with no change to the picture...

Since I have been walked thru troubleshooting on another set and lived (THANX TW!!! ) I figured I would use this new found skill (courage?) on another one..

If anyone can point me in the right direction, I would be greatly appreciative..

Michale

[freakaftr8]

Re: Sony KDL-52V5100, Left Middle Blur Pre-Warmup, Right Side OK, Top Bar Discolored

this is most likely due to a tab bonding issue on the panel itself the small ribbons that are enclosed behind the metal frame of the LCD screen you could get a can of freeze spray and try hitting the upper left and right corners of the screen and see if it clears up but I'm almost certain that it's at a bonding issue this is very common in Sony and Samsung

there are many post about this issue and it is curable but probably not long term by putting a buffer shim between the metal frame and the LCD screen

[Michale32086]

Re: Sony KDL-52V5100, Left Middle Blur Pre-Warmup, Right Side OK, Top Bar Discolored

And, since it's on the display, replacing parts is likely not on option..

Would that be a safe assumption??

[tom66]

Re: Sony KDL-52V5100, Left Middle Blur Pre-Warmup, Right Side OK, Top Bar Discolored

Yes, it would be known as a "panel failure" and require replacement of the whole panel.

[Michale32086]

Re: Sony KDL-52V5100, Left Middle Blur Pre-Warmup, Right Side OK, Top Bar Discolored

That's what I was afraid of..

One last follow-up. Is this a common symptom with LCDs that have the same issue??

The reason I ask is that I have a Samsung LCD LN40A500 40" that has the same issue. It's blurry and latenty at power up.. The difference is that, with the Sammy, after 5-60 mins, the blurriness clears up and the display is perfect...

So, I was curious if that symptom usually indicates the same fault...

Thanx for the replies.. Much appreciated...