t-man Posted April 12, 2001 Share Posted April 12, 2001 Hey folks. Need your help. I told you all before about that broken KG 2.2v I got from Ebay, and how the magnets were all out of whack. It was only on my TV for a few minutes, but it sure did mess it up. Ever since, I've been having troubles with the TV. Although I no longer get rainbows in the corners or any other color errors, there is the slightest darkening, or purple in the upper right corner, seen almost exclusively with green screen shots. You will miss it if you don't look carefully. What you wont miss, however, is that now my screen is distorted. Watching a letter box movie, the upper horizontal bars aren't straight. A box on the TV also looks like it's caving in on one side. My TV is a 27" sony trinitron. It will be best, if you see pictures of what I'm describing. Look here: http://members-http-4.rwc1.sfba.home.net/tkruger4/ebay/tv.html Notice the THX box, and how it's distorted? Notice the green preview screen, and how it's dark on the left corners - especially upper? The camera really get's this well. Better than live, actually. Notice the words aren't perfectly horizontal, but rather tilted up on the left? My question is...is my TV permanently broken? Would a professional degausing fix this? I don't know what to do. Help! note: all speakers are correctly demagnitized within 5 feet of my TV, including the center and main speakers. When I remove the center, the problem does not go away, nor does it when I remove any other speakers from the room. Thanks, T-man Quote Link to comment Share on other sites More sharing options...
Guest BobG Posted April 12, 2001 Share Posted April 12, 2001 Pro degaussing is called for. Don't allow any hack to do this as damage is possible. Sometimes metal objects such as parts of stands etc, nearby become magnetized and then influence the picture. Also there are "purity magnets" installed during production to eliminate the last traces of magnetic distortion and these can fall off inside the TV. Are you 100% certain none of this was happening before you put the defective speaker on the TV? Finally, it is quite common for lines not to be straight, but you would have noticed this before the problem if it existed. While the tv has a degaussing circuit built in (triggered by thermal cycle probably) pro degaussing should be done. It is about a 5 minute procedure and other than the trip, should not be expensive. Quote Link to comment Share on other sites More sharing options...
boa12 Posted April 12, 2001 Share Posted April 12, 2001 t-man, i'm getting the same thing w/ my 27" sony & the new klf-30. at first color was all messed up & now ok but picture is skewed. the bucking magnets from klipsch parts haven't arrived yet but i was afraid of it doing damage to the tube. thought i read it's servicable. do you have a Sony service center nearby? ------------------ Klipsch KLF-30 (front), KLF-C7, Cornwall I (rear) Velodyne HGS-18 sub woofer Monsterbass 400 sub interconnect & Monster S-12 cable Sony STR-DE935 a/v receiver Sony DVP-C650D cd/dvd player Sony Trinitron 27" stereo tv Toshiba hi-fi stereo vcr Technics dual cassette deck Technics direct drive turntable Scientific Atlanta Explorer 2000 digital cable box 2nd room: Klipsch RF-3 (front), RC-3, cheap little Technics (rear) Kenwood KR-9600 AM/FM stereo receiver (vintage '75) Teac PD-D1200 5-disk cd player Sega Genesis game player Sub: None yet rock on! Quote Link to comment Share on other sites More sharing options...
t-man Posted April 12, 2001 Author Share Posted April 12, 2001 BobG, I did not have the distortion problem before. However, I got the 2.2v at roughly the same time as my KG 5.5s. The 5.5s may have something to do with it, but I got the bucking magnets installed within a couple weeks. A tiny rainbow effect (seen only on rare occasion) nearest the closest KG 5.5 was immediately gone, but the distortion remains. I just read somewhere that bucking magnets alone will not shield the front or sides of the speaker, but only the rear. What good is that? Is this true???? Could my 5.5s still be causing this problem, because they aren't properly shielded? If so, I just wasted $100 on magnets. Please help, T-man Quote Link to comment Share on other sites More sharing options...
forresthump Posted April 12, 2001 Share Posted April 12, 2001 this is starting to remind me of that movie "The Jerk" (with the glasses devices). can you say class action Quote Link to comment Share on other sites More sharing options...
T2K Posted April 12, 2001 Share Posted April 12, 2001 t-man, how far from your TV were the 5.5's placed?And how about the center? Keith Quote Link to comment Share on other sites More sharing options...
t-man Posted April 13, 2001 Author Share Posted April 13, 2001 Talktokeith, The Right 5.5 is approx 18", and Left 2.5 feet. The center is only 2" from the TV on a shelf. It would help to see the picture here: http://members.home.net/tkruger4/ebay/DSC00012.JPG Thanks. Quote Link to comment Share on other sites More sharing options...
T2K Posted April 13, 2001 Share Posted April 13, 2001 t-man, being no expert on the subject I would have to guess that the problem comes from the center.I had my 5.5's within 12" of my TV for years with no apparent problem. Just a guess. Keith Quote Link to comment Share on other sites More sharing options...
afraid Posted April 13, 2001 Share Posted April 13, 2001 The best way to solve your problem is to go get a new tv and replace your speakers. Quote Link to comment Share on other sites More sharing options...
t-man Posted April 14, 2001 Author Share Posted April 14, 2001 Afraid, Is that supposed to be funny? I actually tried that once in college. I lived in a fraternity, and I had a small 20" TV. Everytime I would watch a letter box movie, the picture would be crooked (higher on the left than the right). I sold it to a friend, and got a Sony 27". Hooked it up, and same thing! I took it back and exchanged it for a new one (the one I currently have). I hooked it up, and same thing! What the heck was going on here? I pulled it away from the wall, and ebefore I got it disconnected, noticed that the problem was better. I pulled it further from the wall, and it was totally fixed. As I pushed it back towards the wall, it got worse. Was this a TV and/or speaker problem. No! I think something similar is happening now since I had those big magnets on top of my TV from the KG2.2. Some sort of magnetic interference is going on. T-man Quote Link to comment Share on other sites More sharing options...
Guest BobG Posted April 14, 2001 Share Posted April 14, 2001 The two techniques used to shield speakers are bucking magnets and shield cups. The magnets minimize stray fields in one direction while the cups are better at other stray fields. In either case, the field is not uniform and shielding measures are never perfect. Certain TV's are more prone to magnetic interference as well. Flat screen TV's and big tube TV's suffer more problems than do the curvy tube types and smaller tube sizes. It all has to do with the precision of the electron beam landing on the proper dots on the phosphor screen. The bigger the tube, the longer the distance the beam travels from the electron gun to the phosphor screen and the more any bending of the beam will be seen as color distortion. Geometric distortions are a related but different problem. Many TV's have trouble and even with no speakers near by, they may not make proper squares and circles. As force decreases as the square of distance, space is your ally. Move your speakers and TV farther from each other and allow the TV to go through a few heat up/cool down cycles - a couple hours on followed by a couple off. This should trigger the internal degaussing function. Then check to see if the picture is any different. The bucking magnets you put on the 5.5's should do the trick but you may not be able to have the speaker and TV as close together as you wish. Quote Link to comment Share on other sites More sharing options...
Pete C Posted April 15, 2001 Share Posted April 15, 2001 Wiring in the wall affects picture quality & distortion. I repair computer systems and the first thing I do when I have a call for a distorted monitor is put an extension cable on it and move it away from the walls. Not only wiring but appliances running on the same wall in an adjacent room will cause distortion. My first question to the end user on a phone support call is "Do you have a fan on or a space heater under your desk?" This is a common summer and winter complaint. I think you solved your own problem by moving your TV. Quote Link to comment Share on other sites More sharing options...
Pete C Posted April 15, 2001 Share Posted April 15, 2001 It looks like boa12 has been adding to his system, now systems. Quote Link to comment Share on other sites More sharing options...
t-man Posted April 15, 2001 Author Share Posted April 15, 2001 Pete, That problem was solved 7 years ago. Since then I have had no problems. In my current residence. The TV has been in the same spot for a year with no problems. The problem only starte since the KG 2.2V incident and upgrade to KG 5.5. Hope that clears things up. The local TV repair shop won't come and fix my TV, and says I have to lug it in for a degauss. Gimme a break. Considering all these environmental factors, I would like a home visit. Should I insist on this, and keep shopping till I find one? There is NO alternative placement for my TV, so that is not an option. Like I said, I never used to have problems with this location. T-man Quote Link to comment Share on other sites More sharing options...
boa12 Posted April 15, 2001 Share Posted April 15, 2001 pete c, yea movin along. now looks like the tv will be going in w/ the 2nd sys & the safer rf-3 problem now is i'm looking at 1 of those flat tube sony wega for the main system & after bobg & treyc comments maybe another brand more agrees w/ klipsch klf towers. anyway, when the buck magnets for the klf-30 mids & tweets arrive i'll see if that helps. ------------------ Klipsch KLF-30 (front), KLF-C7, Cornwall I (rear) Velodyne HGS-18 sub woofer Monsterbass 400 sub interconnect & Monster S-12 cable Sony STR-DE935 a/v receiver Sony DVP-C650D cd/dvd player Sony Trinitron 27" stereo tv Toshiba hi-fi stereo vcr Technics dual cassette deck Technics direct drive turntable Scientific Atlanta Explorer 2000 digital cable box 2nd room: Klipsch RF-3 (front), RC-3, cheap little Technics (rear) Kenwood KR-9600 AM/FM stereo receiver (vintage '75) Teac PD-D1200 5-disk cd player Sega Genesis game player Sub: None yet rock on! Quote Link to comment Share on other sites More sharing options...
Pete C Posted April 15, 2001 Share Posted April 15, 2001 t-man, sorry I misread your letter. I shouldn't check the posts when it's past my bedtime. boa12, I passed on the WEGA due to the reflection. Instead of a miniature reflection of light, it is a full-sized reflection. I chose the normal 35" Sony. It will depend on how your room is set up. Quote Link to comment Share on other sites More sharing options...
boa12 Posted April 15, 2001 Share Posted April 15, 2001 pete, i guess that means the wega's anti-reflection tech can create a problem in itself any color tv recommends for the 27" variety??? i'm limited to a max 29" inside a cabinet. guess that rules out a rptv (?) main concern now is anti-magnetism, though i realize the main problem is the klf being too close to the tube. hopefully the bucking mags work caus I think putting on cups is beyond this tool-time dropout Quote Link to comment Share on other sites More sharing options...
t-man Posted April 16, 2001 Author Share Posted April 16, 2001 Fellas, Took the TV out of it's spot. Put in on the other side of basement, connected cable TV, plugged it in. Couldn't replicate problem (Also couldn't put in a DVD, so had to rely on sci-fi channel for letterbox). Color distortion still there, but no obvious geometric distortion. Every TV repairman I've talked to say that the speaker could never have caused a geometric distortion - only color. I put the TV back in it's place, and removed all speakers from room (sub, center, L and R). Still same color and geometric distortion now. Did something in the primary viewing area get magnetized or something. This environmental effect is really bugging me. How can I fix this? I think I will take it in for a degaussing, although the repairman said that you shouldn't degauss Sony Trinitrons. Something special about them could cause permanent magnifications during degaussing process. What's the deal with these Sony's. Is Boa's doing the same thing? Anybody else have this problem? Let us know when you get the magnets installed, Boa. Mine didn't do the trick. Anybody know of some good tin can products I can buy to use the cans for shielding cups for my KG 5.5s? T-man T-man Quote Link to comment Share on other sites More sharing options...
T2K Posted April 16, 2001 Share Posted April 16, 2001 boa,throw out the cabinet and get yourself a 53-61" Sony XBR RP. A few weeks ago my wife and I were at a big sale and I was in a theatre room checking out some Pioneer Elite TV's.I was admiring the piano black finish,checking to see how clearly my finger prints would show up on the finish,when my wife came in.I backed off about ten feet and asked her how she liked the picture on a 51 incher.She pointed and said"I like that one better".She pointed to a 53" Sony XBR RP that I hadn't noticed.I looked at that picture and that of the three Pioneers and mumbled "I guess that's the reason I bought a Sony". Go for it dude.It'll make the 30's look smaller and your grin a lot larger! Keith Quote Link to comment Share on other sites More sharing options...
t-man Posted April 16, 2001 Author Share Posted April 16, 2001 talktokeith, The reason you had no probs with magnification, and were able to put the 5.5s so close to the TV, was because you have a projection TV. I would imagine... T-man Quote Link to comment Share on other sites More sharing options...
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