White Ms. Pac Monitor

Scuba Steve

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I finally picked up a Ms. Pac-Man over the weekend. When I got the cab home it worked fine on the initial start up. Powered it down and started to clean the cab, replaced the electrical cord, and some general basic maintenance. When I got to a stopping point I decided to power it up, and to my dismay, saw a white screen and no sound from the speaker.

I've already tried to adjust the flyback screen knob with no results. I did think it might be the board (due to no sound) so I installed an extra Pac board that I have lying around and the same issue arose. Check the fuses and nothing wrong. Any suggestions? I have very basic knowledge about monitors but enough to know they aren't something a novice should mess around with.
 

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Double check all your work and make sure everything is good. If you get raster, the flyback screen control pot should turn the brightness down (assuming you have one - the 4600 does not have it on the flyback)...
 
I did try the flyback screen control pots with no results. I retraced my steps a half a dozen times and can't figure out what I did to produce the white screen.

I'm assuming the monitor is a Wells but not 100% sure. I've attached a pic of the back end if that helps at all.
 

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The monitor is a Electrohome G07. Check to see that the video inputs are still connected to the monitor and that they are not off by a pin on the headers.
 
Thanks Dokert i'll give that a try when I get home tonight. Can you specify where the video inputs are on the monitor? And would that effect the audio?
 
Yup, the PCB is plugged in. Without it the monitor just goes black. However, I do wonder if something is wrong with the edge connecter. As that would explain the no audio issue.
 
dumb question of the day... have you checked all of the fuses?


Yes, but I think I'll check them again as that would be a better theory as to the issue. Visually the fuses look fine. Maybe I should just change them all for good measure. Would the same fuse control audio & video? But if the fuse was blown I don't think I would get any power to the monitor.
 
unless you put a meter on the fuses, you have not checked them.

there should be 6 fuses IIRC

the monitor is not in the same fused circuit as the game board
 
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