I've been having all sorts of problems with HD(ready)TVs the last few weeks. We purchased a Toshiba 36FHX72 that got damaged at the time of delivery, so we had to wait an extra week to get the TV. We got a new one and we immediately noticed a 1/4-inch bow in the middle of the screen. We returned the TV, and the good guys from BestBuy raplaced it with a Sony KV36HS500. This TV is really good and we are really happy with it, except for two defects. It also bows in the middle (1/8 inch) and it has a blue/green patch in the upper-right corner.
The bowing problem is not too bad and can almost be corrected with VCEN and VPIN adjustments. I say "almost" because VCEN dropped to zero a VPIN set to 12 indicates a physical problem.
The green patch is what bothers me the most, and no matter how many times it gets degaussed the patch always comes back.
I know this could be an orientation issue, but it is a dynamic convergence problem (corner convergence) caused by a magnet not positioned correctly.
I called a "Sony" tech and he told me that this is normal and there was nothing he could do. He even told me that there are lot of TVs with this problem, and if I wanted to exchange it, it is very likely that I'd get another one with the same problem if not worse. He is right a bunch of TVs out there have the problem.
I was about to just forget it, when I decided to talk with a senior tech from Sony. I explained the situation and told me that the problem is not normal, and he would discuss it with the guy who came to my house the other day. I don't know if they are going to call me back. If they don't I'll take a vacation for now and deal with it later. I may use those Radio Shack magnets recommended somewhere else.
If they do fix it, I'll tell you what they did.
Would you replace it? At least I know what this one has...
I moved the TV around and it's really hard to believe how sensitive this things is. I moved it facing south and the green patch got worse. I moved it facing north and the green patch went away, but got a yellow (brownish) patch on the other side. I put it back where it was and the green came back but it was lighter..so I guess the problem IS the orientation...again is hard to believe.. I am going to keep this TV as changing it won't make any difference.
Joined: Nov 06, 2002
From: Santa Clara, CA
Posted: 2003-04-14 12:41
Do you have unshielded speakers close to the set at all? Magnetic fields from speakers cause green tint all over the screen. Try to isolate the TV from all electronic components for a few days except your sat or cable. Turn it on and off like normal to degauss several times a day and see if it goes away.
If you have any speakers at all in the same room try removing them to a different room altogether to try to fix the problem for the few days.
If the tv is fine after this. add the electronic components back 1 by one, but not speakers. You must get shielded speakers if they will be close to the TV at all.
[ This message was edited by: Jeff_Lam on 2003-04-14 12:43 ]
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