wave issue in Hantarex monitor for MK2

jaxgatorgolf

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I hope to get some help in tracing down an issue with a Hantarex monitor in a Mortal Kombat 2 machine I recently picked up.

Here are the two issues I'm seeing:

1. the vertical (which I guess would be horizontal?) adjustment control is so touchy that I can't get it to line up on the test screen properly no matter how gentle I am with the control.

2. there is a persistent "wavy" appearance that goes across the monitor. I suspect its either capacitor or power related, but I'm not sure how to go about narrowing it down.

here's a video of the wavyness if you can see it
https://imgur.com/a/KoRqdYt

if this ends up being capacitor kit related, does anyone do repair service for these monitor chassis?

thanks!
 
the only ground wire attached to the monitor was the remote board that i could see. I disconnected it and powered on the game, but it made no difference.
 
still looking for anyone who does repairs on these chassis types :) I ordered a cap kit, but I'm a little concerned I'll make it worse rather than better.
 
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