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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Only getting a 6-inch high strip of picture on TV
Hi, we have a 27-inch Sanyo TV that's a year-and-a-half old. Not HDTV or LCD
or plasma or anything, just a plain old tube TV, it's our third straight Sanyo TV, we've had good luck with 'em in the past and the price was right. We left the house for a while today and left the TV on ... we normally do that for security reasons so that folks coming around will hear a TV and think someone is at home. It was working fine when we left. When we came home, it was not working fine. I would say we're getting probably a six-inch strip of picture, that's measured vertically, horizontally it stretches all the way across the screen, a bit closer to the top of the screen than the bottom. What we are seeing is probably the top six inches of what would be the normal picture, a bit distorted but still recognizable as such. Does anyone here have a clue what might be going on with this, and how big a fix it would be? I know this is the perfect time to upgrade to a more modern TV, but with Christmas around the corner that would be an "ouch," plus we are limited at least for the time being as to what size of TV we can accomodate in our living room, and aren't really inclined to go to the trouble of changing that at the moment. We have an old fashioned entertainment center, where the TV sits inside the cabinet, unlike the newer ones where you sit the TV with its pedestal on the top, and this Sanyo, at about 26.5 inches wide, is absolutely the widest unit we can get into that space, and we're not interested in downsizing to a 19-inch widescreen that would be about like a computer monitor. There is a similar Sanyo 27-inch TV available now, only it's 30.5 inches wide and it just ain't gonna work. At the same time, however, if it's going to be a $100 or $200 fix for this TV, then you have to consider whether it's worth doing that, since the unit itself didn't cost all that much. Thanks in advance for any help. |
#2
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Only getting a 6-inch high strip of picture on TV
On Dec 8, 8:59 pm, "Greg Bailey" wrote:
Hi, we have a 27-inch Sanyo TV that's a year-and-a-half old. Not HDTV or LCD or plasma or anything, just a plain old tube TV, it's our third straight Sanyo TV, we've had good luck with 'em in the past and the price was right. We left the house for a while today and left the TV on ... we normally do that for security reasons so that folks coming around will hear a TV and think someone is at home. It was working fine when we left. When we came home, it was not working fine. I would say we're getting probably a six-inch strip of picture, that's measured vertically, horizontally it stretches all the way across the screen, a bit closer to the top of the screen than the bottom. What we are seeing is probably the top six inches of what would be the normal picture, a bit distorted but still recognizable as such. Does anyone here have a clue what might be going on with this, and how big a fix it would be? I know this is the perfect time to upgrade to a more modern TV, but with Christmas around the corner that would be an "ouch," plus we are limited at least for the time being as to what size of TV we can accomodate in our living room, and aren't really inclined to go to the trouble of changing that at the moment. We have an old fashioned entertainment center, where the TV sits inside the cabinet, unlike the newer ones where you sit the TV with its pedestal on the top, and this Sanyo, at about 26.5 inches wide, is absolutely the widest unit we can get into that space, and we're not interested in downsizing to a 19-inch widescreen that would be about like a computer monitor. There is a similar Sanyo 27-inch TV available now, only it's 30.5 inches wide and it just ain't gonna work. At the same time, however, if it's going to be a $100 or $200 fix for this TV, then you have to consider whether it's worth doing that, since the unit itself didn't cost all that much. Thanks in advance for any help. Sounds like the set may be running fairly hot if it fits in the space that closely. As to the problem, it sure seems like one of the electrolytic capacitors associated with the vertical deflection circuit has gone bad. You don't say if you are trying to fix it yourself, what your background is, and perhaps most importantly, the model number of the set. Since certain sets have patterns of failures, having a model number, not just a 27in. Sanyo might get more responses here. |
#3
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Only getting a 6-inch high strip of picture on TV
Gotcha ... this info is from the back of the set:
Model DS27425 Chassis 27425-07 Family/Group VB8D No, I'm not trying to fix it myself, have no experience whatsoever in such things and don't plan to start experimenting now. Basically, what I was wanting to find out was how big a fix, on top of a bench charge, this is likely to be. My first thought is to repair the TV if at all possible, because we've been pleased with it and it suits our needs (we're not chomping at the bit to go HD; quite frankly it gives me a headache). However, if we're looking at $100-$150-$200 to fix an out-of-warranty TV that cost only $249 new at Wal-Mart, then I would have to think strongly about putting that much money into a new one rather than repairing this one. I never have thought about the TV running hot in that space, maybe I should and will keep it in mind in the future. "hr(bob) " wrote in message ... Sounds like the set may be running fairly hot if it fits in the space that closely. As to the problem, it sure seems like one of the electrolytic capacitors associated with the vertical deflection circuit has gone bad. You don't say if you are trying to fix it yourself, what your background is, and perhaps most importantly, the model number of the set. Since certain sets have patterns of failures, having a model number, not just a 27in. Sanyo might get more responses here. |
#4
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Only getting a 6-inch high strip of picture on TV
"Greg Bailey" wrote in message . .. Gotcha ... this info is from the back of the set: Model DS27425 Chassis 27425-07 Family/Group VB8D No, I'm not trying to fix it myself, have no experience whatsoever in such things and don't plan to start experimenting now. Basically, what I was wanting to find out was how big a fix, on top of a bench charge, this is likely to be. My first thought is to repair the TV if at all possible, because we've been pleased with it and it suits our needs (we're not chomping at the bit to go HD; quite frankly it gives me a headache). However, if we're looking at $100-$150-$200 to fix an out-of-warranty TV that cost only $249 new at Wal-Mart, then I would have to think strongly about putting that much money into a new one rather than repairing this one. I never have thought about the TV running hot in that space, maybe I should and will keep it in mind in the future. Well any time you take something to a repair shop you're probably looking at $100+, but this should definitely be less than $200. I do this stuff as a hobby, I usually charge about 50 bucks to fix something like this for strangers, if you decide to upgrade, try posting the old set on craigslist, anyone who's reasonably handy with a soldering iron has a good shot at fixing it. |
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