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probs w/ LCD TV, any advice?

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Old 02-13-2008, 10:09 AM   #1  
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Default probs w/ LCD TV, any advice?

I recently bought my 1st HDTV- a 52" Sony (xbr4)

I have gone thru 2 of them in a week and a half and am waiting for my 3rd to arrive later this week. The 1st one lasted 2 days before I got a vertical line of dead pixels in the lower left quadrant (hooked up to non HD Tivo- switched thru reciever.) The line was there w/ all video sources (DVR, DVD, over the air HD ant)
The 2nd one had the same issue after 1 day- same quadrant but different location (I upgraded my DTV to HD in the interim, so this one was connected via a HDMI directly from Sat HD DVR)

other notes about my setup-
DVD rec hooked up via component video
VCR to Rec via RCA's then video from rec-TV S Video
audio from DVR/DVD to reciever w/ optical audio

Since the TV's have a very low failure rate, I am wondering if I could be doing something wrong, although I don't know what it would be.

The TV fits pretty tight between 2 bookshelves (less than 1/2 inch each side) but has 6+ inches above it and a small fan behind it (switched w/ reciever) to circulate air.
Everything is plugged into a pretty expensive power strip that is designed for Home Theater and is supposed to regulate AC (from Radio Shack, around $90, $30,000 equiptment protection coverage)

Questions-
1- Is there anything I could be doing wrong in terms of setup, etc?
2- My research led me to believe this is one of the best TV's out there (low failure rate, 120Hz, etc) Is there something wrong w/ this model I don't know?
3- Should I exchange it for a different brand/model or should I just consider this bad luck? What would you buy in a +/-52" LCD (the 120Hz is important to me as I watch a lot of sports and action movies)
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Old 02-13-2008, 11:09 AM   #2  
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Could be a bad run of the tvs.

Could be your power strip is defective.

Could be one of your components is defective.

You should plug the tv directly into the wall with nothing plugged into it. Do you still see the line. If yes, the tv or your home power is bad.

If you don't see the line with it just plugged into the wall, start plugging each component in, one by one, when the lines comes back, you have found the defective link.

Ofcourse, you'll need a surge protector when you're done testing, the wall plug in is just to see what's wrong.
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Old 02-13-2008, 11:22 AM   #3  
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Originally Posted by clearday View Post
Could be a bad run of the tvs.

Could be your power strip is defective.

Could be one of your components is defective.

You should plug the tv directly into the wall with nothing plugged into it. Do you still see the line. If yes, the tv or your home power is bad.

If you don't see the line with it just plugged into the wall, start plugging each component in, one by one, when the lines comes back, you have found the defective link.

Ofcourse, you'll need a surge protector when you're done testing, the wall plug in is just to see what's wrong.
Thanks for the response,
I did try that at one point trouble shooting the first TV that went out- line was there w/ TV plugged into wall and nothing plugged into the TV.
I am thinking it could be a bad run of TV's but want to make sure it's not my fault- I don't want to ruin a 3rd TV if it's something on my end. If it is the TV's, I am debating on if I might be better off going w/ something else (there was a nice Mitsubishi Diamond series 52" LCD I was also looking at)
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Old 02-13-2008, 01:37 PM   #4  
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Just as one last idea before giving up on the tv, have you tried a totally different outlet on another circuit in your house. Possibly another appliance feeding off the same circuit is causing a problem.

After that, I would try another brand.
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Old 02-13-2008, 01:39 PM   #5  
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Very surprised Sony XBR4 is top of the line in LCD the odds of getting two bad ones in a row must be astronomical....
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Old 02-13-2008, 01:56 PM   #6  
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Originally Posted by clearday View Post
Just as one last idea before giving up on the tv, have you tried a totally different outlet on another circuit in your house. Possibly another appliance feeding off the same circuit is causing a problem.

After that, I would try another brand.
yep, I did switch the TV to another outlet, but only after the pixels were out. The line of dead pixels has continued to grow since being switched to the 'new' outlet however (with both TV's, the dead line started out about a half inch long and grew over time- about a foot long now on the second TV after 4 days) I think if it's a power issue, it must be true for all power in my house...

papylap said: "Very surprised Sony XBR4 is top of the line in LCD the odds of getting two bad ones in a row must be astronomical...."

I agree, part of the reason I stepped up and spent the extra 25-30% on this TV was because it was supposed to have one of the best track records for repairs. Seems like too big of a coincidence that I got 2 bad ones in a row.... I keep wondering if it could be because there isn't much room for airflow around the TV (bookshelves tight to each side and only 6+ inches above it) although the fan I put behind it seems to circulate the air pretty well.
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Old 02-13-2008, 05:02 PM   #7  
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Go to Radio Shack or a local hardware store and get a plug-in wall socket circuit tester (about $10 to $15). Use it to check to see if your outlets are mis-wired. If your wall sockets turn out to be ok, then you have eliminated one possibility.
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Old 02-13-2008, 05:19 PM   #8  
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outlets are mis-wired
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Old 02-14-2008, 09:33 AM   #9  
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Thanks for the replies- makes sense that it could be the outlet/outlets.
I bought a tester on my way to work this morning, will test the outlet tonight and report back w/ results tonight.

New TV (#3) is due to arrive tomorrow morning
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Old 02-14-2008, 10:41 AM   #10  
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I have the Mitsu 52 inch LCD that you mentioned about getting. Excellent TV. However mine is in the shop for a minor problem of shutting off by itself every 7 days. So they all can have problems out of the box. Sometimes it is better to have yours repaired than go through another new one of the same lot. I would try the Mitsu next and join a rare breed here on line!
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Old 02-15-2008, 01:29 PM   #11  
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Not the outlets (according to the outlet tester) and i switched to a new power strip (just in case that is the issue)
New TV arrived and is working after a couple hours, we'll see what happens from here... The last 2 both were fine for a day or 2 before getting lines of dead pixels.
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Old 02-15-2008, 04:24 PM   #12  
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I would invest in a line conditioner since they do a lot better in protecting hi-end equipment than with a $50 surge protector. Some people have claimed that with line conditioners, they've noticed the quality of the HD signal a lot cleaner than before.
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Old 02-15-2008, 05:15 PM   #13  
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You mean a line of dead pixels going across the entire screen, but right on the last line of pixels on the screen?

It's unlikely the TV is defective.
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Old 02-16-2008, 08:29 AM   #14  
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Originally Posted by gameguru1360 View Post
I would invest in a line conditioner since they do a lot better in protecting hi-end equipment than with a $50 surge protector. Some people have claimed that with line conditioners, they've noticed the quality of the HD signal a lot cleaner than before.
I'm not sure what a conditioner is, can you explain further and/or give me a link to one?
The power strip(s) I have been using are over $100 and are supposed to regulate the power spikes in the house (plus have plug ins for phone, coax, etc) They are the one recommend by the store that sold me the TV

Codes20 wrote "You mean a line of dead pixels going across the entire screen, but right on the last line of pixels on the screen?
It's unlikely the TV is defective. "

No, both TV's started w/ a vertical line in the bottom left qudrant of the TV. If you were looking at the TV(s) it would be 1/2 wat between the left edge of the screen and the center, running from the bottom edge to the middle of the screen (took about a week to get that big in both cases)

Anyways, everything seems fine after 4-5 hours of play on the new TV, will report back early next week w/ an update
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Old 02-16-2008, 08:37 AM   #15  
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Ok, I was just making sure it was not overscan from the signal, in which case you would have a line on the very edge of the screen.

Very odd problem indeed. Good luck.
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