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Post by Antman on Jun 26, 2019 21:53:56 GMT
Hi i get these S like vertical waves through RGB any thoughts on what it is? imgur.com/a/PM9Qkqd
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mick_aka
Kickin' it lively!
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Post by mick_aka on Jun 27, 2019 10:56:59 GMT
Looks a lot like power supply interference, but take your system in to another room and try plugged directly in to another power socket just to check its not a ground loop problem.
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Post by Antman on Jun 27, 2019 16:56:18 GMT
Looks a lot like power supply interference, but take your system in to another room and try plugged directly in to another power socket just to check its not a ground loop problem. The Saturn's power supply? This problem does not happen with other console s just the saturn
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mick_aka
Kickin' it lively!
"Mick is moderately adequate."
Joined: April 2007
Posts: 9,817
Location:
XBL: mickloaf
PSN: mickloaf
Nintendo ID: segamick
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Post by mick_aka on Jul 1, 2019 16:32:10 GMT
Yes the Saturn's power supply.
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Post by davyk on Jul 3, 2019 8:51:23 GMT
I normally only see waves like that when I take a screenshot off a CRT screen with a camera - I don't see them with my own eyes though.
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Post by zyrobs on Jul 3, 2019 14:23:48 GMT
I can't see the issue on those screenshots. But if you have a model 2 PAL machine with serial starting with 167, AD69, 169, 179, or 17D (any unit that is a VA6 or later), and the problem is lines tilted vertically, rolling over the screen, and getting worse when the CD drive is active (and there's a near permanent band of tilting on the topmost part of the screen), then the issue is not the power supply. It's the capacitors and possibly the EMI filters on the output that need changing. They are too old and can't filter out interference anymore, first the screen gets weird like that, and eventually the PLL will fail to be stable and the console will randomly crash unless it is "warmed up" first.
The power supply usually only goes wrong in the earlier units (boards up to VA5 aka VA SD) which use those TOP chips, and when it happens you don't just see lines, the entire machine starts loudly whining and the CD drive will fail to work.
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