Recent content by rcoonjr

I did figure it out... It was actually N4. the 7411. found it using my scope. the 16v line was a little solid with very little data where v32 looked good. But thank you for the help!! Now the sad thing is I moved it to its home in my game room.. had that solid picture I took now the...

I'm looking at the schematic. I have a working game with this small issue. 2 bars on the screen I cannot for the life of me figure out where they are coming from. Any one got a quick suggestion where to target. I've only gotten luck fixing one of these but this wasn't the issue I had issues...

your a lifesaver.... ive been getting more and more gray hair on this project

I'm in the search for an unmarried hard drive. I've tried numerous chd images with zero results. if anyone has one message me thanks!! --ron

I'm finishing up a new build of the aftermarket Warlords board. Does anyone know what I can use for the 90-7035 RAM @L8 and K8. thanks!! I got everything. This is holding me up.

Anyone have a patched Rom for Super pacman for free play.. I like the high score saves routine. but I don't need that feature. just to patch it so no coins are needed as we have one on the arcade floor. kids keep pressing the credit button and locking it up with the famous "AA". Thanks. If...

Bump. Anyone have U61 image? I got one where its been zapped with 0's for the serial number. PM if you have a image of it.

Problem resolved. Bad Bipolar ram. And one eprom was glitched.

I'm baffled on a issue I've been fighting on and off for a half year. figure now I'll see if anyone else has a insight what to check. But first the important information first. Known working ram set, all eproms check ok with checksums, new cables MCR switcher (arcadeshop), and all 6116 ram...

Does anyone have the rom for this? I don't wanna drill a hole in a door if you know what I mean... anyone have it and can share it to me that would be great.

mine as a opto sensor. I just got a manual a few minutes ago from MC35 which is for one I have in my warehouse this one I'm working on has this weird opto board the eggs pass though to stop the system

Mine just won't stop clucking... Need to get a manual to check parts.

I hear he is a hard person to reach. I'm still baffled with it. It oddly has good ram and roms. I'm just gonna leave it like that and wait for a working atari football board pops up.

I'm stumped on a X's and O's. I have a mpu board booted. but missing one section on the display. Anyone have an idea where to target the output phase on the board. I have this running on an LCD Composite to VGA adapter. IT also does it on a CRT so I know its not the lcd doing this.

Has anyone tried putting a WG 19v1001 in place? I got a m5000 which has no glow.. has me stumped. I got a bunch of working 19v1001 chassis. Just wondered. as for my m5000 no glow or HV. I suspect the q9. I ordered all three replacement transistors. -Ron