Recent content by wadehavens

So I did some more poking around and I noticed that I get pulsing on the rom0 and rom3 test point but rom1 & 2 test points are high. Could this mean there is something wrong with the ls139 decoder at 6H? Honestly, if you can’t tell already, I really don’t know what I’m doing. Lol Thanks for the...

I watched some videos and read some forums and was able to check the z80s to see if they are in a constant reset, and cpu 1 is constantly resetting while cpu 2 and 3 are both low on pin 26. Don’t know if this helps but I hope so. :) Thanks

I received my probe today and I do have a clock signal. I've rearranged the CPU's, ran the board without any CPU's, pulled the custom chips out one by one and tested, and about the only thing I can get it to do is make the counter relay sound click on and off when I power up without the 07...

Can’t be as bad as an old G07 flyback blowing up. I’ve seen that. Lol but maybe.

Yeah I read that. But testing on the cap with the board disconnected from what I read was the right way to make sure it was adjusted properly before I connected it back up.

I pulled all the chips and cleaned all the legs. They were pretty bad but I tested everything for continuity and they seem good. I adjusted the 5v at the supply with the board disconnect and then again with it connected. I’ve also tested the 5v all over the board and it seems fine everywhere...

The color bars at the top and bottom are only there when the board is hooked up. The black scrolling bar is the vertical hold not syncing. But somehow the horizontal does. I tried removing the cpus and I get the exact same results. Pretty much nothing. I adjusted the 5V at the AR without the...

I just acquired a Dig Dug and I can’t seem to get it to boot. I’ve rebuilt the AR2 and adjusted the 5v and everything is good there. But still nothing. Here’s a link to the video. Any help would be appreciated! Thanks!

It's a Fender Bandmaster VM. Tube amp plus digital reverb, tremolo, and delay. The other is a Tweaker.

Make me an offer on this...I really need to get rid of it. Would rather it go to someone who really wants it. Thanks

That's awesome that you fixed it. I wish I still had my Donkey Kong to work on. I miss that game! Thanks for posting.

It's just a piece of wood with wheels.

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Hey there. I have a working Galaxian I'm looking to sell. It has a 60 in 1 AND the Galaxian board inside. Both work great. Comes with the original control panel and the custom one for the 60 in 1. All original wiring inside and intact. Has a k4900 installed with a recent tube swap. So no burn...