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Old 08-07-2013, 02:24 PM
TinCanAlley's Avatar
TinCanAlley TinCanAlley is offline
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Join Date: Sep 2008
Location: So Cal, CA
Posts: 1,020
Are These Circuit Traces Bad

I purchased an NOS horizontal output board for my Avanti and upon installing it, nothing. There's sound, but no image. Not even the sound of the degauss. So I swapped back the old module and it worked again. I check everything on the top side of the module to make sure they were in their sockets, etc. Everything looked fine. It's when I turned the board over. I noticed that a few of the silver traces had black sections that look like the old laserdiscs had when they got laser rot.

Anyway, I'm attaching a pic and would appreciate any input. I bypassed the main canister today and it didn't help with the jail bars. I don't feel I wasted my time as I had already replaced all electrolytic caps earlier. Besides, the 500uf sections were 35% and 40% on the plus side and the 400uf sections were about 25% and 30% on the plus side. Not sure this makes too much of a difference, but the ones I put in are only 10% when tested.

Thanks
Attached Images
File Type: jpg New Horizontal Board Small (1).jpg (99.2 KB, 72 views)
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