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#1
11-09-2019, 09:09 PM
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Lou, you may want to post on the ETF classified or in ARF. There are no doubt many New Englanders in road range of your location.
__________________
"When resistors increase in value, they're worthless" -Dave G 
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#2
11-10-2019, 09:26 PM
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Quote:
Sorry, not sure what or where either of these are if you could explain. Thanks.
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#3
11-20-2019, 09:39 AM
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Well, my son somehow managed to convince my wife to allow us to keep the set and take it with us when we move! So, with that in mind, is anyone still around from this old thread (or anyone new since) who can respond as to whether they would be available to help me in repairing this set as planned oh so many years ago? Thanks if anyone can respond please!
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#4
11-21-2019, 10:54 AM
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Re-reading through this old thread, that is from before my time, there was a lot of jargon in there that would probably be overwhelming to you.
Assuming you're picking up where you left off, the first thing to do is confirm that there's no high voltage: if you don't hear that static crackle when the set first turns on, then there is probably no high voltage. Next you should double-check to make sure the circuit breaker isn't tripped. Push it in and power on the set again. After that, the assumptions made here lo those many years ago are probably correct. There are several suggestions pretty much all of which boil down to two things: 1. Failed tripler, horizontal output transistor, or possibly flyback transformer. The tripler was replaced in the past but it could have failed again - they are a high-failure item, relatively speaking. The usual failure scenario in these sets was: Tripler shorts, which then causes the horizontal output transistor to short, which, if the circuit breaker doesn't trip to save things, will cause the flyback transformer to fail. 2. A lack of horizontal drive, meaning the signal that drives the horizontal/high voltage section isn't present. By far the most common cause is the first one. The steps to track them down are all in the thread, but if you don't know what you're looking for it would be tough. Try this: 1. Un solder the wire from the tripler that goes to the flyback. Position it so the end is well clear of anything, and turn on the set. Hold the tip of a screwdriver about 1" from the end of the wire you just unhooked (don't touch shaft of the screwdriver, just the handle) and see if you get a little arc. Move it closer until you do. In most cases you should see a little spark there, indicating that the flyback, horizontal output transistor, and horizontal drive are all working OK and that tripler needs to be replaced. 2. If you don't get a spark or arc, and the circuit breaker isn't tripping after you reset it, it's possibly a bad horizontal output transistor but more likely the flyback is open, or you have a horizontal drive problem. Check those things out and we'll help you from there. That's still the best TV ever made.
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#5
11-22-2019, 12:40 AM
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Thanks for your comments in this resurrected thread. I remember, although I couldn't easily find it on a quick look back, earlier in this thread that someone mentioned that if I reset the circuit breaker to see if it was tripped and then turned on the tv, that it might damage the circuitry even further (like you mention about maybe damaging the flyback transformer)? With that in mind, would I just approach the testing you mention by just following your instructions and nothing untoward should happen? Thanks again.
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#6
11-22-2019, 06:47 AM
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Well never say never but generally speaking if the circuit breaker tripped before due to a shorted transistor or tripler, it will trip again right away. Just don't go resetting it over and over. Once is enough to tell if it's going to keep tripping.
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#8
11-28-2019, 07:30 AM
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They are commonly available here, on ebay, or your local electronics distributor. There's nothing unobtainable in that set. The flyback is the most unlikely but I recall others saying they have spares and parts sets in this thread.
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