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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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Somebody or some team designed one heck of a tv and I got lucky and
bought one...25 years ago. Maybe one of you reading this was involved in this masterpiece. I am a layman. Yes I experienced the awesome Zenith black and whites from the 50's. But in 1983 I accidentally got the color set to die for. I have owned early RCA, Zenith, and later the best of Sony CRT and rear projection, and Phillips CRT and Sanyo CRT and Panasonic CRT.... ...to name a few. I purchased from Sears "Outlet". ....1983.... a .Sears-LXI (Sanyo?RCA?) 26" Model.. a true combo tv-channel 3 or 4 -monitor . Model 564-42951650 / 564.42952650. The picture quality and the built-in features are awesome and long lived. I post this because few if any of the new monitors and TV's have the flexible features this one had ..in conjunction with quality performance ...let alone anticipated longevity. Since it came from the outlet store, that meant it failed shortly for the first buyer. It failed shortly for me as well, but the one or two tiny resistors-capacitors? put in by a tech 4 months after I owned it, under warranty, has resulted in PERFECT performance ever since......that is 25 years to date. I do mean perfect. "...(That tube TV has an awesome picture. very ..bright and sharp and the color is balanced)..." is the comment of many ...even today's LCD owners. And the set is LOADED with features. The set was designed at 330 lines max resolution ....broadcast standard. The lumens are incredible..it displays in hot white, and with the sharpness circuit turned to zero, tint-color- brightness-contrast are dead on at default midpoint. Oh I will lower the brightness one knotch and tint up one knotch, occasionally, depending on the broadcast. The lumens are so great they hurt your eyes in a dark room. Really. If you turned down the brightness, color and tint could never be balanced. I had to move it from a dark family room to a sunlit or lamp lit ..living room. The new 36" rear projection unit (lousy Sony needed color guns often) was too faint for the sunlit room anyway so it went to the family room and the LXI was too bright for the dark room... so it went to the living room into a custom built ..leaded glass door A/V oak entertainment center. A gorgeous combo. Beau-coup Features: Unusually heavy beast...est 55 pounds BACK PANEL: 3 - way switch : force tv tuner or channel 3 or channel 4 monitor function -time does not show on screen if 3 or 4 is forced normal or catv switch Here's what I love too: RCA input and outputs: video-audio inputs..... one, and two and THREE OUTPUT one) fixed audio stereo or mono and video 2nd OUTPUT ) audio only-VARIABLE NO S-CONNECTOR ONE 75 OHM ANTENNA PORT External speaker terminals Internal-external speaker switch As you can see, with a relatively inexpensive switch box this unit can be used as a central a/v preamp or and economy a/v receiver. Performance features: A fine tuning up down for exceptional CATV and antenna inputs ( I never used it) V-Hold etc Nice, top - narrow control hideaway door Stereo-mono selector Bilingual selector Both of the above plus the time is displayed briefly when changing channels. Time- time on- sleep time -off programmer. Use it as an alarm clock. 125 channel tuner Headphone jack up front with automatic speaker cut out if used. Good control buttons up front if remote fails including OBC ( One Button Color -centering reset. I never measured the distortion on the speaker outs. The variable audio out is pretty darn good. .. This puppy performs. I ordered an HD converter from DishNetwork. I'll get an LCD when this AWESOME crt tv fails me. Somebody or some team designed one heck of a tv and I got lucky and bought one. |
#2
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#3
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![]() "Don Bowey" wrote in message ... On 9/17/08 3:21 AM, in article , "TonyQ" wrote: Somebody or some team designed one heck of a tv and I got lucky and bought one...25 years ago. Maybe one of you reading this was involved in this masterpiece. (snip) This puppy performs. I ordered an HD converter from DishNetwork. I'll get an LCD when this AWESOME crt tv fails me. Somebody or some team designed one heck of a tv and I got lucky and bought one. You should get a life. What he said. |
#4
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Hate to spoil things, but does it have full-bandwidht I/Q demodulation?
Not likely. |
#5
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On Sep 17, 6:21 am, TonyQ wrote:
Somebody or some team designed one heck of a tv and I got lucky No you didn't, all TVs (except the Korean models, which weren't terrible) were reliable in the 80s. You can find these TVs along the side of the road, and I'll bet at least half of them still work. They're very simple circuit wise, and well built. I purchased from Sears "Outlet". ....1983.... a .Sears-LXI (Sanyo?RCA?) 26" Model.. a true combo tv-channel 3 or 4 -monitor . Model 564-42951650 / 564.42952650. 564. model prefixes indicate Sanyo built. Most of these had RCA CRTs in them. This puppy performs. I ordered an HD converter from DishNetwork. I'll get an LCD when this AWESOME crt tv fails me. Performs? Most CRTs of this era have untinted glass which will render horrible black levels in typical room lighting situations. Some high end models used a somewhat dark tinted screen, others used an exterior tinted glass cover. |
#6
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John-Del wrote:
On Sep 17, 6:21 am, TonyQ wrote: Somebody or some team designed one heck of a tv and I got lucky No you didn't, all TVs (except the Korean models, which weren't terrible) were reliable in the 80s. You can find these TVs along the side of the road, and I'll bet at least half of them still work. They're very simple circuit wise, and well built. I purchased from Sears "Outlet". ....1983.... a .Sears-LXI (Sanyo?RCA?) 26" Model.. a true combo tv-channel 3 or 4 - monitor . Model 564-42951650 / 564.42952650. 564. model prefixes indicate Sanyo built. Most of these had RCA CRTs in them. This puppy performs. I ordered an HD converter from DishNetwork. I'll get an LCD when this AWESOME crt tv fails me. Performs? Most CRTs of this era have untinted glass which will render horrible black levels in typical room lighting situations. Some high end models used a somewhat dark tinted screen, others used an exterior tinted glass cover. Stop raining on his parade. He's HAPPY with something. So it's not for you but it's good for him. G² |
#7
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On Sep 18, 3:59 am, wrote:
Stop raining on his parade. He's HAPPY with something. So it's not for you but it's good for him. G² Actually, I was trying to **** on his parade, but your point is taken. |
#8
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It is absolutely no wonder why nobody ever talks about what happens when
things go right. So the person who bought this TV really likes it and thinks it's the best TV ever made. Even if isn't, so what? William (has this 1983 era Zenith 13" table TV that to this very day works so unbelievably well...oh wait, never mind...) |
#9
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TonyQ wrote:
Somebody or some team designed one heck of a tv and I got lucky and bought one...25 years ago. snip I bought a television "monitor" from JC Penney back in 1977. The darn thing is still plugging along today. Picture quality is still great and so is the sound. It was one of the first stereo tv's on the market, so the seperation is a bit lacking, but other wise it's still a fantastic set. It's one of those that has more inputs and output jacks on the back than I know what to do with. I don't plan on upgrading to digital until this gem takes it's last breath. |
#10
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I know the best site about the best (high price) tv adjustment.
cuhulin |
#11
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#12
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On Sep 19, 10:51*am, Elephant wrote:
I bought a television "monitor" from JC Penney back in 1977. *The darn thing is still plugging along today. * *Picture quality is still great and so is the sound. * It was one of the first stereo tv's on the market, so the seperation is a bit lacking, but other wise it's still a fantastic set. * It's one of those that has more inputs and output jacks on the back than I know what to do with. I don't plan on upgrading to digital until this gem takes it's last breath. Not to p*ss on anyone's parade or anything, but quite frankly, I can't fathom how anyone can rave over analog CRT TVs anymore. Not when it's so easy to go into stores and view either SDTV or HDTV over LCDs or plasmas. It must take an enormous amount of mental rationalization to rave over old sets, IMO. After buying an LCD monitor and HDTV STB for our main setup, we bought another STB for the upstairs setup. Used it with a very nice Sanyo CRT we had owned for a number of years. But honestly, it was hard to enjoy that anymore. Even fed from an HDTV STB, so the image was completely free of any ghost, the image on the analog CRT was so "TV-like" as to be uninvolving anymore. No definition, grainy, obvious shadow mask, just unacceptable anymore. So we moved the downstairs set upstairs, and bought a bigger one for downstairs. By the way, neither of the two LCDs we bought was adjusted even close to correctly, straight out of the box. My recommendation is to start by deactivating any of their auto picture adjustment gizmos, and go from there. Ditto with the audio. Don't be discouraged when the initial image looks totally underwhelming. Bert |
#13
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Hi!
Not to p*ss on anyone's parade or anything, but quite frankly, I can't fathom how anyone can rave over analog CRT TVs anymore. One thing is the longevity...I've seen my old CRT TVs go past their 10th, 20th, and even 25th birthdays, and they still work as well as they ever did. Most have required nothing more than simple cleaning of the screen to keep right on plugging along. I *like* that kind of a lifetime out of a product, and I'm not sure we'll ever see it with the more modern LCD and Plasma TV sets. (Or maybe even the modern CRT sets for that matter.) I'm of the strong belief that most (if not all) of them won't last nearly as long because they were not made as well. I am not saying that I would never buy an LCD or plasma TV set, but right now I see no reason to do so. I don't have any need for anything more than what the sets I have can offer, and I'm not going to throw them out while they still work fine and meet my needs. William |
#14
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William R. Walsh wrote:
Hi! Not to p*ss on anyone's parade or anything, but quite frankly, I can't fathom how anyone can rave over analog CRT TVs anymore. One thing is the longevity...I've seen my old CRT TVs go past their 10th, 20th, and even 25th birthdays, and they still work as well as they ever did. Most have required nothing more than simple cleaning of the screen to keep right on plugging along. I *like* that kind of a lifetime out of a product, and I'm not sure we'll ever see it with the more modern LCD and Plasma TV sets. (Or maybe even the modern CRT sets for that matter.) I'm of the strong belief that most (if not all) of them won't last nearly as long because they were not made as well. I'd like to have seen it in the late-century CRTs as well. Just because they 'could' make them better--and in fact did at one time--doesn't mean that just any CRT will last even five years. I've had dozens of monitors and nearly as many TVs which I sh*tcanned because the CRT wore out. They have a finite lifetime, after which the emissions inevitably decline. That's if the shadow mask doesn't warp or get dislodged, or a short doesn't develop. That said, I like CRTs. I liked vinyl records as well. Make an LCD with the same attention to workmanship as the older picture tubes, add an easily-replaceable backlight (or an LED one which won't burn out)...and you have a product which should last longer than the average CRT. Whether you'll think it looks as good is another question altogether. I am not saying that I would never buy an LCD or plasma TV set, but right now I see no reason to do so. I don't have any need for anything more than what the sets I have can offer, and I'm not going to throw them out while they still work fine and meet my needs. Nor would/will I. I have a 15 year old RP CRT machine that suits me just fine. When it dies, though, I'll likely replace it with something that doesn't take up so much room and use as much electricity. jak William |
#15
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![]() "William R. Walsh" m wrote in message news:bS%[email protected]_s21... Hi! Not to p*ss on anyone's parade or anything, but quite frankly, I can't fathom how anyone can rave over analog CRT TVs anymore. One thing is the longevity...I've seen my old CRT TVs go past their 10th, 20th, and even 25th birthdays, and they still work as well as they ever did. Most have required nothing more than simple cleaning of the screen to keep right on plugging along. I *like* that kind of a lifetime out of a product, and I'm not sure we'll ever see it with the more modern LCD and Plasma TV sets. (Or maybe even the modern CRT sets for that matter.) I'm of the strong belief that most (if not all) of them won't last nearly as long because they were not made as well. I am not saying that I would never buy an LCD or plasma TV set, but right now I see no reason to do so. I don't have any need for anything more than what the sets I have can offer, and I'm not going to throw them out while they still work fine and meet my needs. William In my opinion..............I think, if you can afford it, go buy a HDTV monitor, Reason? You only live once and it's well worth the cost, Don't miss out. |
#16
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On Sat, 20 Sep 2008 05:28:39 GMT, "William R. Walsh"
m wrote: Hi! Not to p*ss on anyone's parade or anything, but quite frankly, I can't fathom how anyone can rave over analog CRT TVs anymore. One thing is the longevity...I've seen my old CRT TVs go past their 10th, 20th, and even 25th birthdays, and they still work as well as they ever did. Most have required nothing more than simple cleaning of the screen to keep right on plugging along. I *like* that kind of a lifetime out of a product, and I'm not sure we'll ever see it with the more modern LCD and Plasma TV sets. (Or maybe even the modern CRT sets for that matter.) I'm of the strong belief that most (if not all) of them won't last nearly as long because they were not made as well. I am not saying that I would never buy an LCD or plasma TV set, but right now I see no reason to do so. I don't have any need for anything more than what the sets I have can offer, and I'm not going to throw them out while they still work fine and meet my needs. William indeed... that was my backhanded message. Does the TV industry today think and function like Enron or MCI or Lehmann Bros management? I never said my old CRT unit gave a BETTER picture than the good new LCD units. It has ended up to be an incredible value. Will I be so lucky when I buy an LCD model? It's up to you designers.... and corporate management, boys and girls. |
#17
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On Sep 21, 11:30*am, TonyQ wrote:
indeed... that was my backhanded message. Does the TV industry today think and function like Enron or MCI or Lehmann Bros management? I never said my old CRT unit *gave a BETTER picture than the good new LCD units. *It has ended up to be an incredible value. *Will I be so lucky when I buy an LCD model? *It's up to you designers.... and corporate management, boys and girls. I guess I missed the social message embedded in this. Just sounded really odd to see raves about the image of analog TV, that's all. I was very, very glad to see LCD TVs of reasonably large size, and digital TV, become available. Even at a very young age, i.e. grade school age, I couldn't understand why TV images had to look so bad compared with movies, or why TVs had to be so enormous for such a small image area. TV always seemed to me to be a bad compromise, required to get images over RF. So I've been following the evolution of "advanced TV," then DTV, since way back in 1986, with great anticipation. My own luck with analog TVs was so so. And I never saw any evidence whatever of them being built with any special care. Quite the opposite, if anything. Analog CRT TVs, as far as I could tell, were always far more cheaply built than any audio gear I've owned. Probably had to be that way, to keep the price down. Our oldest analog TV was more than 15 years old when the flyback transformer fried in a dramatic display of sound and smoke. One quit working early on, just a couple of years old. I got it fixed, but that didn't last long. Newer ones quit typically after 7 or 8 years or so, with the image suddenly becoming ghosty, then recovering, then back to ghost, or with power supply problems. A couple of them shut off suddenly, then back on again, then off, etc. The last two CRTs we owned were still working when we gave them to charity. They were both around 9 or 10 years old. My expectation is that LCDs, which do not need high voltages, should last fairly well. We'll see. Bert |
#18
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Albert Manfredi writes:
My expectation is that LCDs, which do not need high voltages, should last fairly well. We'll see. But LCDs *do* need high voltages, to run the electroluminescent or cold-cathode backlight that most large displays have -- and, indeed, backlight PSU problems are an extremely common failure mode on LCD monitors that are more than a couple of years old. I've seen quite a few die that way already. My Dell 2001FP 20" LCD failed twice in four years. The customer service operative I spoke to said they're only engineered to last three years now, and it was unreasonable of me to expect to get any more than that out of a £600 monitor -- suffice it to say that I won't be buying from them again. -- Adam Sampson http://offog.org/ |
#19
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Adam Sampson wrote:
Albert Manfredi writes: My expectation is that LCDs, which do not need high voltages, should last fairly well. We'll see. But LCDs *do* need high voltages, to run the electroluminescent or cold-cathode backlight that most large displays have -- and, indeed, backlight PSU problems are an extremely common failure mode on LCD monitors that are more than a couple of years old. I've seen quite a few die that way already. My Dell 2001FP 20" LCD failed twice in four years. The customer service operative I spoke to said they're only engineered to last three years now, and it was unreasonable of me to expect to get any more than that out of a £600 monitor -- suffice it to say that I won't be buying from them again. Eventually, LEDs will take over the backlight duties. That will fix 'that' problem. Dell already offers them as an option for some of their line of laptops. That said, last week I saw my first OLED display. Major game change. Sure, it was a tiny 11" Sony TV, selling for (get this!) $2300; but the image was stunning. Simply amazing! From no matter what angle, the image looked the same. If you could see the image at all, it looked the same as head-on, unlike an LCD where you have to be at the perfect spot for the image to look right. I'm familiar with professional preview monitors (CRTs) which are not inexpensive in their own rite. Still no comparison. I said many years ago in this forum that LEDs would take over the flashlight industry. That's happened to a great degree. I'll make a similar prediction concerning these. They're just that good. ---Unless something else comes out that's better and cheaper; you'll have an OLED TV some day--- jak |
#20
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I'm still using my Sony KV-35S45, it was one of the best CRT sets ever
made, and IMO it outperforms the vast majority of LCD and perhaps even plasma sets on the market. It's size and weight, and the lack of HD, is a downer for sure, but it's well worth it to have a TV that looks and performs like a TV really should. Even if I could afford an HD set, the only one I'd even consider would be a Pioneer Elite plasma. LCD's may have the advantage when it comes to resolution, size, and efficiency, but you just can't beat the rich, accurate color of a good CRT. Everybody else might be racing to the nearest Wal-mart to pick up a cheap LCD, but I'm sticking with the old, tried-and-true favorite. "Albert Manfredi" wrote in message ... On Sep 19, 10:51 am, Elephant wrote: I bought a television "monitor" from JC Penney back in 1977. The darn thing is still plugging along today. Picture quality is still great and so is the sound. It was one of the first stereo tv's on the market, so the seperation is a bit lacking, but other wise it's still a fantastic set. It's one of those that has more inputs and output jacks on the back than I know what to do with. I don't plan on upgrading to digital until this gem takes it's last breath. Not to p*ss on anyone's parade or anything, but quite frankly, I can't fathom how anyone can rave over analog CRT TVs anymore. Not when it's so easy to go into stores and view either SDTV or HDTV over LCDs or plasmas. It must take an enormous amount of mental rationalization to rave over old sets, IMO. After buying an LCD monitor and HDTV STB for our main setup, we bought another STB for the upstairs setup. Used it with a very nice Sanyo CRT we had owned for a number of years. But honestly, it was hard to enjoy that anymore. Even fed from an HDTV STB, so the image was completely free of any ghost, the image on the analog CRT was so "TV-like" as to be uninvolving anymore. No definition, grainy, obvious shadow mask, just unacceptable anymore. So we moved the downstairs set upstairs, and bought a bigger one for downstairs. By the way, neither of the two LCDs we bought was adjusted even close to correctly, straight out of the box. My recommendation is to start by deactivating any of their auto picture adjustment gizmos, and go from there. Ditto with the audio. Don't be discouraged when the initial image looks totally underwhelming. Bert |
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