Anyone who is looking for a Pac Man / Ms Pac Man PCB, this a great price shipped. If you want to convert it to Pac Man, it's only a couple of chips to swap and it's still a genuine board.
I honestly do not know this person nor was I asked to write this. Just passing this along as I repair...
I brought the board to work with me and put it on my PC power supply with a different header and the chip is "normal" temp now. I will have to reexamine my test rig at home, but at least it rules out the board :)
I have about 4 boards doing the same thing. My assumption is there is a component that has failed and is shorting out the board. If i put my meter on continuity and probe both sides of one of those little caps leading to the rails, say Cp 6, 9 or 16, the meter just continually rings. If I put...
Update: problem solved. I must have had the power up too much. I brought the board to work and used a pc desktop power supply and at least got the screen below. This chip is the Galaga enhancement kit so that's why it displayed that message.
Got home plugged it back into my test bench and sure...
****** U P D A T E *******
I bought the 7 caps I saw listed in a Galaga cap kit today and just got them installed and I finally get a boot screen, but with an error. I put a replacement 911 ram chip in 3H but I cant get beyond this error. I bought a can of contact cleaner. I will pull the...
I took every chip off of 2 other non working boards and swapped chips one at a time. My guess at this point is sockets or another parts like caps have died. I hope its.not sockets.
Just tried, no. No response at all.
I dont know Galaga boards like I know Pacman boards, so I am unsure of the cap readings.
From what I read on the meter so far, everything looks ok there (famous last words!)
Hi there, Yup, plenty of spare cpus from Pac Man boards. Z80a. No change. :( I swapped every chip as a matte of fact one at a time checking each time I swapped as to not shotgun a problem.
I had my Galaga machine on for a few hours. When I came back in the room the screen was frozen. I powered it off and turned it back on and now only only get this screen.
I removed every socketed chip and cleaned all the pins. Reinstalled the chips, removed and reinstalled the ribbon cable.
I...
I wanted to say thank you to Taulpaul for a smooth transaction. Its always a little nerve racking to send money to a complete stranger and wonder if you'll ever get anything. Paul came through with better than expected quality pcbs!
Deal with him with confidence.