 MdocEhh... munch munch... what's up, Doc?Premium
join:2007-03-27
Sterling, VA
kudos:1 | reply to neonhomer
Re: Tektronix 485 - no power up said by neonhomer:Oi vey.. that's going to be a bitch.......
I had the power inverter board and the sweep board out last night, and it was a bitch to get apart.
It says I can pull certain combs to isolate certain areas. I do know if I pull the "R" comb, the "clicking" goes from slow to fast.
The faster clicking is caused by pulling the "R" comb, Table 4-4, pg 4-8, top entry. Nothing new there.
If I'm not mistaken there should be a plug with wires attached to it on the rear of the CRT; you just pull that off.
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 neonhomerKK4BFNPremium
join:2004-01-27
Edgewater, FL | You pull the rear cover, and there are three connectors..... one has 3 wires, and two that have one wire each.... |
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MdocEhh... munch munch... what's up, Doc?Premium
join:2007-03-27
Sterling, VA
kudos:1 | Pull them all off. The big HV lead goes to the tube anode, you can leave that in. |
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neonhomerKK4BFNPremium
join:2004-01-27
Edgewater, FL | Haven't forgotten. Just don't feel like opening this thing back up right now. Will probably open back up after the kids go to bed in about 45 min or so. |
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neonhomerKK4BFNPremium
join:2004-01-27
Edgewater, FL | Oooookay... Pulled the three connectors that go from the xfmr board to the crt. Nothing. Same thing.
Walked through some of the tests on 4-7. Nothing to note.
I think I have reached the limit of my equipment. I hate to have to send this to a shop, as I know it will be a few hundred $$$ to get it fixed.
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"F is for Fire that burns down the whole town...
U is for Uranium...... Bombs...
N is for NO SURVIVORS!!!!!" Sheldon Plankton |
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 drjimPremium,MVM
join:2000-06-13
Long Beach, CA
kudos:3 | Try and find a local ham radio club. Most of the old guys there (like me!) probably have an oscilloscope, and might be willing to help you track down the problem.
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One man's Magic is another man's Engineering. |
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| reply to neonhomer
said by neonhomer:I think I have reached the limit of my equipment. I hate to have to send this to a shop, as I know it will be a few hundred $$$ to get it fixed. Yeah you can hunt a working unit if you are patient. I have a 2232 that I got for $100 *shipped*. |
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neonhomerKK4BFNPremium
join:2004-01-27
Edgewater, FL | I found a working Hitachi V1100A on Craigslist for $100.....
drjim - I could always ship this thing to you and let you play with it... LOL.... |
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