Arcade Collecting > Restorations & repair
My First Restoration - Galaga!
erlsjj:
--- Quote from: 2600 on December 17, 2008, 10:43:20 am ---If you guys haven't done it yet, you should also look at recapping your PCB and Power Supplies. Unknown Power supply instability is something I prefer not to deal with while trouble shooting.
--- End quote ---
Good point, 2600. I'll put it on the list of things to do for my project. Would a bad capacitor on the power supply board have anything to do with my +V. Audio outputing more voltage than the spec (16-17V versus 13V)?
erlsjj:
--- Quote from: JeepMonkey on December 17, 2008, 12:55:18 pm ---Did you get that from the auction in Grandview on November 30? I was there and remember overhearing a guy talking to a friend about the Spy Hunter he won. I was interested in the two Galagas there, but I have too many projects right now to take on another one. I was really more interested in a pin, and they had a good number of them. Unfortunately I had to way to haul anything.
Good luck and nice buy.
--- End quote ---
Sure did! I said Kansas City in my first posting, but I meant Grandview. That was me talkinig to my friend, Jason, who bid against this guy that bought something like 13 or 14 various games and pinballs. Crazy!
Even though they got the other Galaga to work, I didn't like the condition of the cabinet. This is my first arcade project, so I'm looking forward to learning a lot from other more experienced folks like yourself.
erlsjj:
--- Quote from: Mauzy on December 17, 2008, 10:05:31 pm ---I'm the same way to a point. I'll work on a board set only until I genuinely consider setting fire to the whole thing. THATS when it is time to let the professionals to step in. ;D
--- End quote ---
I think I'm going to take 2600's advice and look at replacing the 1N chip as my next step and see what happens.
Mauzy:
good idea
erlsjj:
Thursday, 18 Dec 2008:
Progress! Looking at some other threads, I read that the 07xx chip is used in two places on Galaga boards: 1N on the video board, and 4D on the CPU board. I confirmed this in the schematics. So I moved the 07xx chip from 4D to 1N to see if that would change anything, and it did! Here's a picture of the screen now:
MikesArcade.com is currently out of stock of 07xx chips. Anyone know another reputable place to get 07xx chips?
Also noted that the high pitched tone went away.
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