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Old 03-04-2026, 08:16 PM
6GH8cowboy 6GH8cowboy is offline
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Join Date: Mar 2011
Location: Palm Beach County Florida
Posts: 304
schematic / manual desired PortaColor

Things are coming along decently. The CRT is good and has the finer pitch. I am having an issue getting an actual picture through it. The snow has high contrast with no signal so I'm suspecting an AGC issue I did look at the pot and there's no whiskers, At least not anymore. Curiously I have randomly checked a few of the resistors with the "wood look" and sure enough there are quite a few way out of tolerance. Because of the nature of the circuit board I'm hoping to come across a factory manual / schematic so that I can be a little more surgical In checking and replacing resistors. The less I manipulate the circuit board I think the better.

Hope to get a decent manual that has correct part IDs and locations that coincide the PCB placement.

WM221HWD3
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