68kMLA Classic Interface
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| Click here to select a new forum. | | Mac SE, every so often brightness variation | Posted by: LaPorta on 2020-12-25 16:35:37
My main-use SE has developed a curious issue. Every so often (maybe a few minutes), the screen will suddenly get noticeably brighter by a bit, then later, back down a tad bit darker to where it was before. It is not huge: I only noticed it when using the SE in a darker environment. However, it is noticeable, and it could be the harbinger of a larger issue in the future, so I want to nail it now. This machine has been fully re-capped, with a great CRT, and otherwise the screen works perfectly without any issues at all.
Ideas as to what might cause this?
| Posted by: ymk on 2020-12-25 17:32:54
I'd look at the brightness pots, both the external and the trim.
| Posted by: LaPorta on 2020-12-25 17:41:52
External seems to work just fine, raising or lowering it doesn't seem to affect this.
| Posted by: ymk on 2020-12-26 08:10:59
Poor neck board connection?
| Posted by: techknight on 2020-12-28 11:12:35
Did you deoxit the pots?
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