Recent content by keinert

I have 3 items for sale: CONTACT ME FOR MORE PICTURES. $550 = A Complete and FULLY WORKING PCB set for an Astro Blaster Arcade Game (last tested in Jan. 2024) and tested in my Original Cocktail Table Astro Blaster game. I recently sold Gremlin/Sega Astro Blaster, so I no longer need this spare...

Hello, I don't know how to message you on this forum. I sent you an inquiry through your website, and added my phone number so you can call me. Thanks, Kevin

Thanks! I checked the neck board, the PCB under the drive transistors has seen heat, has darkened, but there are no cold/broken solder joints and no damaged/broken traces. Right now the green is behaving and the monitor looks great. If the green goes out again, I'll swap the neck boards on this...

Hello, I have a Virtua Racing Twin Sit-Down that uses the WG 25K5108 PCB. It has P738-D label on the main chassis PCB. The green is intermittent, it keeps working and then not working. Red and Blue are rock solid. The CRT itself and the game boards and wiring harness are verified good, swapping...

Been chasing this problem for over a year, can't seen to fix it permanently. Has anyone seen this and know what's causing it? I'm guessing that Grand National Race might have the same issue??? THE PROBLEM: 1) When you start a game, the player's bike raises off the road (as it should). 2) The...

PROBLEM FIXED! It was a bad A10 TL082. Thanks for your help!!!!

Hi andrewb, yes I understand. Thank you very much for your suggestions. I will follow them when I can troubleshoot more in a few days. I was just trying to understand the suggestion that yorkshire-spam posted. I'll post when I'm able to take measurements and show everyone the results.

Hello, please elaborate. Are you saying there is a bit called "sign" and it could be stuck high constantly as it's going into the DAC?

thank you sir! That makes sense. I have a scope and can see what good signals look like on my working board, then check for the same on the misbehaving board.

Has anyone seen this problem on a Battlezone Main PCB. The game plays correctly but the left half of the monitor is blank, and the full-complete graphics are displayed correctly, but only on the right half of the monitor. In other words, all of the graphics are squished together and only being...

Looking for any Virtua Racing machines or parts, but mostly the deluxe cabinet with air bags in the seat. Also looking for PCB P/N 837-9053 Doesn't matter how many years from now, I will still be looking for these parts, so contact me. Thanks, Kevin email= [email protected]...

Pacman Extra Baby Problem Found ! Found the problem. The 5101 RAM battery died and just as JayWay1982 and gutz said above, there IS a setting in the RAM that turns the extra baby feature on and off. The "High Score Mode" feature has to be set to "03" in order to enable the extra baby award.

No, this feature cannot be changed. You always get the extra baby when you hit the blue target six times and the yellow arrow is flashing

Does anyone know why my "Extra Baby" Feature has stopped working? The blue center drop target still works properly. Each time the target is hit, the score and playfield lights advance. But now, when the flashing yellow Extra Baby arrow is lit, hitting it before the timeout does not award an...