Tech: Galaga Power Supply Board

Im all for originality but go with a switcher. Not only will the voltage
be stable but it will reduce the temp inside the cab dramatically!
 >> Stay informed about: Tech: Galaga Power Supply Board 

Hey,
Bob's stuff is great. But you may want to check out the
arcadeshop.com solution. I think its different than bob's and its
very clean. Look for the Galaga PS. It should have pics. I think
its like 45.00 & worked well on my Galaga. Best of Luck.
 >> Stay informed about: Tech: Galaga Power Supply Board 

On Feb 4, 11:59 pm, jer... DeleteThis @thebasementarcade.com wrote:
> I have a galaga that has been having erroneous issues. I have pulled
> all the chips out of the board and reseated them. Today when I went to
> turn it on it kept resetting after it got through the startup
> sequence. I decided to throw a voltmeter across the big cap on the
> main board and measure and I was getting 4.65 volts. Thinking I found
> the source of the problem I tried adjusting the voltage on the power
> supply to get 5 volts at the main board. At first it didn't seem like
> adjusting anything changed the voltage. I turned off the game,
> unplugged all the power connectors everywhere, replugged them and
> tried adjusting again. This time it seems to be at 5 volts and the
> game is coming on stable.
>
> I am not sure if the connectors were loose or had resistance, or if
> the power supply "warmed up" and started to give the correct voltage.
> I am still a little concerned about the power supply.
>
> What are everyone's thoughts about changing to a switching power
> supply for stability with the common galaga switcher connectors out
> there? Personally I would prefer to stay with the original power
> supply. Are there any rebuild kits for these Bally Midway power
> supplies out there? Where would I get them?

Two things:

1. Convert to a switcher - you will never touch the power again
2. Put a new edge connector in. It takes about 45 minutes (doing 1
wire at a time)
 >> Stay informed about: Tech: Galaga Power Supply Board 

On Feb 5, 3:22 pm, protoVision <sirus.co... DeleteThis @gmail.com> wrote:
> On Feb 4, 11:59 pm, jer... DeleteThis @thebasementarcade.com wrote:
>
>
>
>
>
> > I have a galaga that has been having erroneous issues. I have pulled
> > all the chips out of the board and reseated them. Today when I went to
> > turn it on it kept resetting after it got through the startup
> > sequence. I decided to throw a voltmeter across the big cap on the
> > main board and measure and I was getting 4.65 volts. Thinking I found
> > the source of the problem I tried adjusting the voltage on the power
> > supply to get 5 volts at the main board. At first it didn't seem like
> > adjusting anything changed the voltage. I turned off the game,
> > unplugged all the power connectors everywhere, replugged them and
> > tried adjusting again. This time it seems to be at 5 volts and the
> > game is coming on stable.
>
> > I am not sure if the connectors were loose or had resistance, or if
> > the power supply "warmed up" and started to give the correct voltage.
> > I am still a little concerned about the power supply.
>
> > What are everyone's thoughts about changing to a switching power
> > supply for stability with the common galaga switcher connectors out
> > there? Personally I would prefer to stay with the original power
> > supply. Are there any rebuild kits for these Bally Midway power
> > supplies out there? Where would I get them?
>
> Two things:
>
> 1.  Convert to a switcher - you will never touch the power again
> 2.  Put a new edge connector in.  It takes about 45 minutes (doing 1
> wire at a time)- Hide quoted text -
>
> - Show quoted text -

Thanks for the suggestions guys. I think if I still get the flaky
power in the next few weeks, I'm just going to go that route.
 >> Stay informed about: Tech: Galaga Power Supply Board 

On Feb 5, 4:22 pm, jer... RemoveThis @thebasementarcade.com wrote:
> On Feb 5, 3:22 pm, protoVision <sirus.co... RemoveThis @gmail.com> wrote:
>
>
>
>
>
> > On Feb 4, 11:59 pm, jer... RemoveThis @thebasementarcade.com wrote:
>
> > > I have a galaga that has been having erroneous issues. I have pulled
> > > all the chips out of the board and reseated them. Today when I went to
> > > turn it on it kept resetting after it got through the startup
> > > sequence. I decided to throw a voltmeter across the big cap on the
> > > main board and measure and I was getting 4.65 volts. Thinking I found
> > > the source of the problem I tried adjusting the voltage on the power
> > > supply to get 5 volts at the main board. At first it didn't seem like
> > > adjusting anything changed the voltage. I turned off the game,
> > > unplugged all the power connectors everywhere, replugged them and
> > > tried adjusting again. This time it seems to be at 5 volts and the
> > > game is coming on stable.
>
> > > I am not sure if the connectors were loose or had resistance, or if
> > > the power supply "warmed up" and started to give the correct voltage.
> > > I am still a little concerned about the power supply.
>
> > > What are everyone's thoughts about changing to a switching power
> > > supply for stability with the common galaga switcher connectors out
> > > there? Personally I would prefer to stay with the original power
> > > supply. Are there any rebuild kits for these Bally Midway power
> > > supplies out there? Where would I get them?
>
> > Two things:
>
> > 1.  Convert to a switcher - you will never touch the power again
> > 2.  Put a new edge connector in.  It takes about 45 minutes (doing 1
> > wire at a time)- Hide quoted text -
>
> > - Show quoted text -
>
> Thanks for the suggestions guys. I think if I still get the flaky
> power in the next few weeks, I'm just going to go that route.- Hide quoted text -
>
> - Show quoted text -

Additional:

I researched the $45 solutions for a Galaga switching power supply and
harness on the internet and figured I couldn't wait and wired up a
switcher harness tonight, complete with connector so I don't have to
hack into the original harness (in case a purist gets their hands on
this cab in the future).

I put in a switcher, hooked up the harness and fired it up. The Galaga
came up immediately without the reboot. I adjusted the supply to 5V at
the capacitor on the main board and played a few games.

All in all it seems we are good to go. The best news is something
unexpected. For some time it appeared as if my monitor had a faint
white "wave" or "ripple" which would go through it. I was under the
impression I would need to do a monitor repair in the near future when
it got worse. However, after putting in the switcher the wave in the
picture is gone!

I guess that means that there was a definite linear power supply issue
to be causing the previous video issue. I'm pretty happy with the
decision to "switch" to switchers.

Thank you for the input everyone.
 >> Stay informed about: Tech: Galaga Power Supply Board 

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 >> Stay informed about: Tech: Galaga Power Supply Board