Arcade Collecting > Restorations & repair
Galaga Machine project - It's now ALIVE!
Cyberflexx:
--- Quote from: Mauzy on October 26, 2008, 05:06:00 pm ---If that's not it, then replace the 2114 SRAMs one by one until you find the bad one.
I bet you can get those from channelmaniacs site:
http://www.arcadecomponents.com/memory.html
funny how he'd bring that up as a fix... ;)
--- End quote ---
Nope, they are Out of stock...
channelmaniac:
I've got a BUNCH of them in various speeds - both tested pulls and new, but since it's a hobby based business and I have a full time day job, I haven't gotten inventory updated yet.
Sigh. I need a vacation from the day job to get about 150 new SKUs added to the site and about 1200 chips added into existing SKUs.
I sent you a PM about your board, but dummy me forgot that the symptoms were listed on this thread. You can always swap the 2114 SRAMs around to see if you can get the board to come to life enough to give you a RAM Error message. Same thing for the CPUs - swap the first and third CPUs around.
Just beware of the following:
* The CPU & ROM sockets SUCK on Galaga boards. Don't be surprised to find intermittent ones
* Legs on the custom chips are prone to corrosion and may fall off when cleaning. You may need to solder on a new leg or three to fix them.
If you run into leg problems on the custom chips you should get a good quality double wipe socket, fix the chip, put it into the socket, then plug that socket into the socket on the game board.
RJ
Cyberflexx:
I got another Galaga board without any chips on it.. sockets look good, it all looks clean. I am going to swap my IC's ( very carefully) to put on this board. I am also going to clean the legs of the IC's I got the board for 16 bucks, I didnt think that was too bad. I'll post more when I get the stuff swapped out..
Cyberflexx:
I took the video board of the Galaga set that I bought and put the chips from the original on it ( only 2 ICs) and swapped video boards in the cabinet. I get the same exact error. This tells me its not the board or but maybe 2114 memory as this board had full mem banks.
I then took the 2 IC's that Channelmaniac suggest that I swap around, and that did not do the trick either. I really think I narrowed it down to something on the CPU board. My other cpu board that I bought does not have the processor IC's on it. I am wondering if I should just take all the IC's off the original board and put them on the other board that I had bought. I think there might be 4 of the many IC's already on the replacement board.
What would you all do at this point?
RayB:
--- Quote from: Cyberflexx on October 26, 2008, 04:55:05 pm ---I didnt check my voltages yet. I may do that later tonight..
--- End quote ---
Have you done that yet? ;)
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version