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Old 02-19-2024, 06:57 PM
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Adam Adam is offline
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Join Date: Oct 2005
Location: Phoenix, AZ
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I'm looking at sams #2472-2, which I just got by cross referencing the model number. According to a sticker inside the cabinet, it's a 9-181-10, the schematic says it's for a 9-181-11. The only difference I've noticed so far is one capacitor C2148 is labeled on the schematic as 680mfd, but the one in there was 0.68 mfd. A 680 wouldn't even fit in that spot, so I figured it was a mistake and replaced it with another 0.68.

I replaced the big main cap with two 330mfd caps, it did fix the wavy picture.

I've replaced all the electrolytics that have anything to do with vertical output, and am still left with one weird problem:

Looking at the picture with the color test pattern everything looks fine, but then look at the picture with the snow and some of the vertical trouble returns. It does the same with an all black screen.
Attached Images
File Type: jpg 85zenith.jpg (139.3 KB, 25 views)
File Type: jpg 1985zenith2.jpg (112.2 KB, 25 views)
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Last edited by Adam; 02-20-2024 at 08:05 AM.
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