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#1
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Hope you folks don't mind, but I'm going to sticky this thread. I've almost given up on vintage color sets because I can't get convergence right, and this is a great reference for anyone working on this
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"Restoring a tube TV is like going to war. A color one is like a land war in Asia." |
#2
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Okay, I should have the 10x probe for the scope tomorrow. Here's a questions about testing the convergence board. I see in the Sams that each of the test points corresponds to a lead in the convergence socket. It would be much easier to test the leads if the socket were disconnected. That way I could touch the probe directly to each pin in the socket. That's where my question comes in. Is it okay to run the set with the convergence board disconnected. I know the convergence will be way off and there will be no power to the convergence magnets. Other than that, would I cause any damage to anything?
Thanks!
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Pioneer SX-1080, Pioneer PL-115D, Pioneer CT-F9191, Pioneer RG-1, Wollensak 8050A, Akai 4000DS MkII, Pioneer CS-05 & Polk 1.2TL Denon 5803A, Pioneer DVL-700, Pioneer CT-W603RS, Toshiba HD-A3, D-Link DSM-520, Dish VIP-722, Polk 1.2TL, CSi5, LS/fx, RT-800 and PSW-650 |
#3
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I suggest you figure a way to make contact solid, with the set off turn on note pattern then shut down for removal of test probs. Beside unless the sams says to disconnect then it would be assumed the reading were taken with the plug attached. |
#4
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I tried to slip the probe tip between the wire and plastic connector wall on the top side, but it's too tight. Maybe there will be more room on the bottom side of the connector. If not, then I'll follow the wires back to where they attach to the terminal strip.
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Pioneer SX-1080, Pioneer PL-115D, Pioneer CT-F9191, Pioneer RG-1, Wollensak 8050A, Akai 4000DS MkII, Pioneer CS-05 & Polk 1.2TL Denon 5803A, Pioneer DVL-700, Pioneer CT-W603RS, Toshiba HD-A3, D-Link DSM-520, Dish VIP-722, Polk 1.2TL, CSi5, LS/fx, RT-800 and PSW-650 |
#5
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on my stuff I can generally get to the test points at the convergence board, you put it in the service position to get to the back off it.
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Audiokarma |
#6
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Last edited by andy; 12-05-2021 at 07:55 PM. |
#7
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Quote:
I guess I could map out the terminal pins and attach the probe on those points. Those are on the front side of the board and less chance of shorting something out.
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Pioneer SX-1080, Pioneer PL-115D, Pioneer CT-F9191, Pioneer RG-1, Wollensak 8050A, Akai 4000DS MkII, Pioneer CS-05 & Polk 1.2TL Denon 5803A, Pioneer DVL-700, Pioneer CT-W603RS, Toshiba HD-A3, D-Link DSM-520, Dish VIP-722, Polk 1.2TL, CSi5, LS/fx, RT-800 and PSW-650 |
#8
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What about using the paper magnet strips they used on precision inline tubes to touch up the dynamic after the fact?
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