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- Mar 26, 2025
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Hi all! I am new to Klov, and arcade tech altogether, so please forgive any inconsistencies
I have an original asteroids cab that is mostly functional, but the top half of the screen will wobble and then collapse at random. It's jiggling while the game is on, and occasionally going back to normal for a few seconds, but then back to laser disco.
I have done quite a bit to this machine so far, so maybe something here will help to suss out the next steps.

Below is a video of it running now with the current issue. Any help would be greatly appreciated!
I have an original asteroids cab that is mostly functional, but the top half of the screen will wobble and then collapse at random. It's jiggling while the game is on, and occasionally going back to normal for a few seconds, but then back to laser disco.
I have done quite a bit to this machine so far, so maybe something here will help to suss out the next steps.
- The customer gave it to me playing blind with the spot killer on. Reported loud buzzing.
- There was a scorched ground pin on the main board's Jamma connection top when I opened it up (Repaired with some copper tape and circuit board epoxy, since it was really toasted)
- F700 on the monitor was blown. Replaced when replacing bottlecaps.
- Tests failed on 2N3792, so I just replaced all the bottlecaps on the monitor chassis(2*2N3792, 2*2N3716)
- After this, we have no spot killer, and the screen is having a fiesta on the top 30%-50%, but working otherwise.
- Recapped the main circuit board.
- Confirmed x/y offset
- Confirmed brightness and contrast weren't out of whack (lowered brightness until just barely visible, then increased contrast)
- stared at it really hard
Below is a video of it running now with the current issue. Any help would be greatly appreciated!



