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iMac weird G3 video problem

Forums > Vintage Apple > Macintosh > PowerPC G3, G4 & G5 (New World ROM) > PowerMac G3 & iMac G3

emuboy
New Tinkerer
--------
Joined: Feb 19, 2025
Posts: 7
Likes: 0
Mar 1, 2025 - #1
So my iMac G3 was working fine, then I turned it on the side to swap the hard drive and when I turned it on, the screen showed this, it's very dimm and the colours are all shifted, any idea ?
Attachments:
1000058358.jpg [View]

emuboy
New Tinkerer
--------
Joined: Feb 19, 2025
Posts: 7
Likes: 0
Mar 11, 2025 - #2
So, at the moment two things are happening, the first the image is bowed to the left, the second is that if I push the contrast too high the image get distorted and the colours get separated:

"normal"




Distorted:




The image appears correct on the VGA monitor.

Any idea? Caps? cold solder?
Attachments:
PXL_20250311_195159010.jpg [View]
PXL_20250311_195203804.jpg [View]

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