Troubleshooting Pengo Power Supply

Spent a couple of hours tonight looking at the Pengo game and trying to do some troubleshooting, mostly on the liner power supply.

As you see in the photo below, this is what a Sega/Gremlin Linear Power Supply looks like fromt the front, with the PCB board mounted on the inside of the humongous heatsink.

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Should I replace the Stern Frenzy Ribbon Cables?

I started to think that maybe the ribbon cables were bad, I read that these were also a source of problems with the game. I read in posts that people have replaced Stern’s ribbon cables in a number of ways. Either they find a known working set on ebay, they find exact cable replacements for the pin configurations, or in some cases they make their own.

I read somewhere that people used scsi cables as replacements, but I didn’t find that to be true. Scsi cables are pretty

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Final Dimensions for Agent X Kickplate

I got the dimensions for the artwork over the weekend, so I decided tonight I would give it a shot and see how far things were off in terms of real dimensions.

The dimensions I was given for the Agent X kickplate artwork are; (Mind you, these are the same for a Crystal Castles and I even think a Star Wars cab)

• Total Height of Kickplate / Coin Door Area = 29.625 in.
• Total Width of Kickplate / Coin Door Area = 23.75 in.
• Total Width of Coin Door (To Outer Frame Edge)= 8

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Amp connector on the way

Tonight was a fairly exciting night. I spoke with another really helpful, really intelligent collector who helped me understand something that should have been simple but I just didn’t see myself. The 2×3 AMP connector coming off the EZ20 monitor was indeed for the RGB Ground and Sync.

The Red and Green wires terminating in a molex connector were for the power, the colors and location were just throwing me for a loop. I looked at the old harness I took out, and sure enough, there was the …

Replacement cap for Frenzy ZPU1001 board

Tonight I stopped after the gym at Radio Shack to get a replacement capacitor for the ZPU1001 board. I didn’t want to travel all the way to Meunier for one cap. I soldered it in and put the board back into the cabinet and got….nothing.

I got a white screen again, which was quite disappointing. The board was dry from the scrubbing, there was no reason it shouldn’t work. But, I did also have some problems soldering, the iron I have is about shot (which is fine

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Figuring out the EZ-20 Monitor hookup

Realized I grounded the monitor wire to wood, doy! So I put that in the right place. Brent and I have beeen emailing back and forth. He has a Kangaroo he is going to try to take photos of the inside hook ups, but it sounds like I am not crazy, and there is a different way to wire an EZ 20 than a regular monitor. It is almost done, and it is bugging me that it is this close. But, I should be able to sell …

Working on the Frenzy game.

I got out into the garage and started drinking around with the Stern Frenzy game. I did some testing on the fuses and determined that at the very least I needed to replace a couple of those. So, I took a short bike ride up to Radio Shack and got some. I couldn’t nail down which ones were bad, so I just covered all of my bases and got replacements for the ones in the power supply and on the Frenzy logic boards.

I switched out the fuses and lo …