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#16
12-21-2013, 05:46 PM
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That's a Thermistor, either for the Degausser or to soft start the set.
One type increases resistance with heat, the other decreases. You could twist the wires together and see if it makes a difference but if it is the degausser you don't want to run it long that way because it could burn up the coil. If the tubes light up and you don't hear a loud humming sound from the degaussing coil then it's probably okay to run it. You can also try to solder it back together, if it sticks together then it should work. 
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#17
12-21-2013, 05:49 PM
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could that be why im not getting any power? it does look cooked off, is it possible to solder it back on? ill use insulated pliers to twist them together, i dont need a zap tonight!
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#18
12-21-2013, 05:49 PM
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I'm pretty sure that was a varistor or thermistor not a magnet.
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#19
12-21-2013, 05:52 PM
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Quote:
Just jumper it for now and see if the set powers up. Those sets were so reliable, outside of the CRT, I don't remember all the problems, that were related to that chassis.
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#20
12-21-2013, 05:52 PM
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Quote:
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#21
12-21-2013, 05:53 PM
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ok, well im going to give it a try and see what happens.
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#22
12-21-2013, 06:00 PM
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Eric thank you. that made it turn on and no hum. the tubes started to light up but i got nervous and shut it off LOL.
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#23
12-21-2013, 06:35 PM
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when i leave the set on for about 30 seconds theres a crackle static noise coming from the back..it isnt the speaker either... theres no smoke, no arcing that i can see but i cut the power quick. im not sure if its the guns or something.. it sounds like its coming from the yoke. do the old color set sound like this normally or is something cook'n?
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#24
12-21-2013, 06:48 PM
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That's called a thermistor. It's purpose is to divert electricity to the degaussing coil on start up. It gets very hot doing it's thing. So hot that it eventually falls off the two leads.
The power supply is wired so the electricity has to go through the thermistor before reaching the transformer. Bad thermistor = no electricity to primary of power transformer = dead set. Twist the leads together (solder if possible) and you will get power to the transformer.
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#25
12-21-2013, 06:52 PM
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i jumped it with mini alligator clips for now, it did power up but the crackling at about 30-45 seconds its nerve racking- it sounds like the static you get when you shut off a set thats been on for hours.... the picture tube doesnt really have a chance to fire because i cut the power before it would due to the noise.
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#26
12-21-2013, 06:59 PM
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Sorry guys, I failed to notice there is a page 2.
Rob, that's the fun of playing with the unknown. You get the nerve racking experience. But you have a bunch of good guys covering your back. Give me the exact model number and a private message. I'll send you a copy of the schematic (Sams Photofact). You'll need it. Phil
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#27
12-21-2013, 07:10 PM
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i sent you a message, thanks guys for all the help so far
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#28
12-21-2013, 07:20 PM
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The crackle is probably the high voltage coming up, it's normal.
Turn up the brightness and check for light on the screen.
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#29
12-21-2013, 07:24 PM
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i will check tomorrow on that and keep everyone posted- im gonna call it quits for the night. lets just hope i dont cook it tomorrow
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#30
12-21-2013, 07:31 PM
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i wanted to throw this out there too... the crackle i hear is kind of loud, but gradually builds the longer i leave the set on.. so if it is the high voltage, it may just sound loud because i have the back off, thats my only guess
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