Southern Indiana Ms Pacman needs help

Jarvis

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I was wondering if someone near Evansville, IN could help me with my Ms Pacman machine? Thanks in advance! John Jarvis
 
Hi John,

Can you give us more detail? Are you needing help with diagnosing the game or do you need someone to come to the house and repair it?

If you can give us more information on what is happening we can help you to fix it or tell you where to send things for repair if you don't feel like it's something you could do.

For example, I repair logic boards... Chad at Arcadecup.com repairs monitor boards... It's easy to take those out, even the monitor. You can find monitor instructions on youtube.com for disassembling/reassembling and for installing cap kits.

If there's no power to the board then you can go down to Radio Shack and pick up replacement fuse holders to install. That's a VERY common problem on the old Pac Man series of games. Even if you have power, you should replace those fuse holders.

Raymond
 
Well i have 2 machines that don't work... ms pacman and centipede. I want to fix ms. pacman first.

I just got the manual wed. and haven't had much time to work on it yet but i can tell you where i am right now with it.

The fuses on the bottom panel had one blown and one missing. I replaced fuses and check with meter. I found all fuses good and 5 volts good, and 7 or 12 what ever they were was good, but on the left side fuses where the 115 volts are the one of those read 60volts. I have lost power somewhere but i couldn't go much farther till i got the manual. I am thinking maybe it had a power surge that took out fuses and maybe transformer?

Centipede haven't messed with much. Screen just shows red lines.

Thanks for any helps guys!
 
maybe i will make some head way this weekend in weather is good.
 
115 volts are the one of those read 60volts. I have lost power somewhere but i couldn't go much farther till i got the manual.

This is probably good. Without knowing which fuses you're reading....Ms. Pac-Man only has two fuses that are carrying 115 volts...the line fuse and the monitors power fuse. These are both AC volts. If you're measuring them from ground, you're only reading approximately half the wave....thus 60V instead of a typical 120V.

Edward
 
I think i am following you. Wonder why one measured 115 and one 60 when i was using the same ground?
 
Ok... well back to looking then. LOL I just seen it said 115 volts next to the fuse so i thought i found a problem. Made since as to why it blew 2 fuses. Lady i got it from said it was working then just quit. only lights on marquee comes on... no sound or screen.
 
Went to radio shack and bought some spray cleaner to clean all the boards. The inside is really dirty! Any thing i shouldn't do? I was thinking of cleaning everything than checking all connections then start trouble shooting?
 
While at Radio Shack, buy new fuse holders and replace the ones in the cabinet.
 
I did buy 2 fuse holders as 1 was real weak. Radio shack only had 2 in stock. Bought a soldering iron also as the one i have is big gun looking thing.
Getting ready to go turn on the 175,000btu furnace down in the barn, Evansville will have a shortage of gas when this thing runs. I can feel my wallet getting lighter by the minute.
 
Ok, from the book it looks like this lug should have 115 volts.... brown wire with orange. Mine doesn't... so is the transformer bad?

mspacman002.jpg
 
Here is a pic of the whole board.

mspacman001.jpg
 
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Ok, from the book it looks like this lug should have 115 volts.... brown wire with orange. Mine doesn't... so is the transformer bad?

mspacman002.jpg

If your meter is on AC volts...you should have approximately 115 volts across those two top lugs....the one you pointed to, and the one beside it. That supplies voltage to your monitor. If you hear the "crackle" of your monitor turning on, that voltage is probably fine. Alternately, you could check the voltage at the monitor's power plug. It's basically the same point, thus same voltage (and much easier to get to....though, there is a fuse between these two points).

Edward
 
Edward,
If i unplug the monitor and check each pin as hot and use the monitor case as ground i get 115 on one side and 60 on the other.

Thanks for the help!
 
Treat the monitor's power plug like an outlet when testing. Stick one probe in one side and the other probe in the other. I'm willing to bet that the monitor is ok if you have no sound also. Did you try putting a quarter in and hitting start to see if there is sound. If they set it to free play there will be no sound until in the game.

Show us some pics of your power supply.
 
If your meter is on AC volts...you should have approximately 115 volts across those two top lugs....the one you pointed to, and the one beside it. That supplies voltage to your monitor. If you hear the "crackle" of your monitor turning on, that voltage is probably fine. Alternately, you could check the voltage at the monitor's power plug. It's basically the same point, thus same voltage (and much easier to get to....though, there is a fuse between these two points).

Edward


Ok so the top of these both should have 115 volts and i don't have it. Is that going in or coming out?
 
Anyone live close that works on these as a hooby and would like to make a few extra bucks?
 
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