| Arcade Collecting > Restorations & repair |
| Vendetta PCB repair |
| (1/4) > >> |
| Mike A:
I am not sure what the interest will be on this forum. I will be posting the stuff I learn as I go along. I started collecting arcade games in 2015 or 2016. I built my first MAME cab a long time before that, but I was never really engaged in this stuff. I have no formal training in electronics or computers or carpentry. I attended U of I at Champaign Urbana enrolled in the pre med program. After 2 years I knew I didn't love it and bailed out to help my dad expand his business. I have been working in warehouse management ever since then. I think that gives me a good realistic background to post this stuff. If I can do it. You can do it too, and probably better than me. Anyways. Hopefully this is the first in a series of topics. You will see my successes and my ---fudgesicle--- ups. I will tell you when I had to lean on someone else. Questions and criticisms are welcome. I am formatting pics and stuff. Stay tuned. I should mention that this repair is completed already and the board functions 100 percent. |
| Mike A:
I bought a Vendetta PCB from Opt2Not. https://www.arcade-museum.com/game_detail.php?game_id=10300 He had done some repairs to it, but it needed more and he would rather have the money than the headache. Vendetta is a JAMMA PCB. You have probably seen that term thrown around here. This is the pinout for the JAMMA standard. I will go more into that in another thread. I plan on explaining JAMMA and how it can and should be used in your cabs. |
| Mike A:
He gave me the bro price for the board. He said audio was not working. I thought that would be a good repair job for a guy like me. The board mostly worked, but had one isolated problem. |
| Mike A:
The first step for me was to boot up the game. After all it mostly works as is. Many arcade boards do a self check on boot up. This one showed a bad ROM, but the game continued boot up and I could play the game, but no sound. |
| Mike A:
So next I did a physical inspection of the board with a magnifier. I will explain why that should have been the first step now. The audio amp was fried. And there was no heat sink on it. I have seen no heat sink on several boards I have acquired. Upon inspection of the schematic the amp installed was the wrong one. It tested bad on my meter. I wasn't sure if this amp fried or if the previous one did since this one was a replacement. I will explain how that works in another thread. And then I will put a link back here. |
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