Top screen garbled

[oliverblum]

Hi everyone!

Got a Playchoice 10 today and it works pretty well, except for the garbled top screen. Picture is attached, not quite sure where to start.
Any idea?
I am not sure how to insert a picture here so i attached a link to a dropbox photo:

https://www.dropbox.com/s/5x4r37v5ih24lhm/IMG_8512.JPG?dl=0
https://www.dropbox.com/s/vt5ry82gu1o475z/IMG_8511.JPG?dl=0
https://www.dropbox.com/s/x0zzixy0kzzj5ri/IMG_8485.JPG?dl=0

A second issue is a constant humming from what sounds like comes from the front left speaker. That issue is not as pressing as the top screen one.

Thanks all!

Oliver

[oliverblum]

Hi,

i actually found a solution, so maybe it helps somebody else one day: Push the service button behind the service hatch and at the same time press the enter button. It will go into service mode. Since i couldnt see anything i just pressed a few buttons, but then just unplugged the power, then plugged it back in and the picture came back.

Oliver

[BadMonkey]

Nice to see another punch out on here. I have the single monitor pc10. Seems odd that it just "fixed itself" so to speak. You may want to check connections and voltages just to be safe. Looks like the hold was off on the monitor. Good luck with that machine. I like the old punch out playchoice 10's.

[oliverblum]

The issue actually came back. It seems like whenever it is unplugged for some time the top screen is scrambled until I do the steps I mentioned above again.

[P-feif]

Not sure what's causing it but to me it looks like a sync issue.