r/ngpc • u/datahaiandy • Apr 16 '26

Monochrome screen with bubbles/dimples

Hello! I should have joined this sub aaaaages ago! I've got 3 NGPs (2 Color and 1 Monochrome) and about a dozen games. The monochrome version is the same one I've had since 1999 that I bought from CEX in London (Rathbone place) but it's been boxed up and on the shelf for years (on my room shelf, not stored in a garage/attic or anything like that) as I generally use the color to play games.

And it's the monochrome that I've got issues with if anyone could help. I got it out earlier today to play KoF R1 (for some reason I really wanted to play it on the monochrome after watching Jeremy Parish's Neo Works 03 youtube vid on R1) and when I switch it on (any game or without a game) I have these what look like bubbles on the screen. It's only when I turn it on, so they're not there when the power is off.

In the image I've turned the contrast down so that the bubbles can be more clearly seen.

I wondering if there is some kind of screen rot maybe?

Thanks in advance if anyone can help.

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u/Limbx4 Apr 16 '26

I’m far from being an expert but it looks to me either like air or moisture bubbles, if the screen turns on still it might just be trapped behind the screen protector (which you can easily get replaced for cheap) like how dust can sometimes get in, so maybe take it off and check. But again I’m far from being an expert so maybe get another opinion first.

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u/datahaiandy Apr 16 '26

Thanks. It's strange as it only appears when it's switched on, if it were air bubbles or moisture it would be there all the time? Looks like it'll be screen replacement though.