INTERNET ARCADE MAJOR HAVOC GENERATOR
INTERNET ARCADE MAJOR HAVOC FULL

It was sensitive just about everywhere and trying to find the epicenter was not really going well. Video would completely go blank just by flexing/touching the board just the slightest bit – anywhere from about the center of the PCB to the edge connector. Intermittent board issues can be miserable to find. The next item took a bunch of hours to track down.

Good information now getting to the DACs. Putting a test pattern into the machine – on the left – Bad – replaced on the right. Last in the chain are the data shifters that feed the DACs (amongst other things)

INTERNET ARCADE MAJOR HAVOC GENERATOR

(chip with what looks like 4 gumdrops on top).Īfter checking RAM, ROM and the vector generator – all seemed to be in pretty good shape. Nice original board – there is a fair amount of prior work – but overall this one is pretty clean in terms of the prior work done. Sent in with reported graphics issues – but wait – there’s more… I’ve fixed many many unfixable boards at this point. This board had been out for 8 months with someone else and it got returned that they could not repair it. Lucky me – had a fully working and testing rig and I got a referral. But double failures are tricky to locate. Debugging coast to coast got us really close.

INTERNET ARCADE MAJOR HAVOC FULL

Popped a couple good ones in and we had full color. They were getting data in but just outputting 1’s. Once I got the board on the bench – it didn’t take too long to determine that the 12K was the issue. It’s a great weekend morning with coffee activity. the board found it’s way to me.īuilt a Major Havoc adapter for my test rig. After a number of coast to coast debugging sessions. Once we got to the PCB, we determined that all 3 colors were locked on vs. Because the entire cab was being assembled from untested/new components – it took a while to determine the monitor was good, power was good, etc. Pretty much everything came out all white. Next he connected to the repro harness and connected the X/Y to a scope and the game was running. Poked around with a logic probe and it seemed to be running (no resets on the CPU’s). Once all the bits and rare components were finally installed – we slowly brought it up on a bench supply and made sure it wasn’t pulling too much current. My buddy on the west coast did a really nice job collecting all the parts and assembling this board. It’s been a long time in the making but there was a hiccup on the PCB. He decided to get the reproduction cabinet and build the reproduction Major Havoc PCB. A good friend always wanted one – but an original is pretty hard to come by. But I’ve been pretty lucky with this sort of thing. I never really expected to work on a Major Havoc set. Lakeside Arcade: Modifications after a year of use.A list of all the little decisions I have focused on….Lakeside Arcade: Making the Control Panel.Cabinet Construction Begins: Lakeside Arcade.Joust Cocktail – Cabinet Restore and Cleanup.Joust Upright – Reassembling the cabinet.Joust Upright – Cabinet tear down and restore.Asteroids Deluxe Cocktail – Restoration.Star Trek S.O.S – Mechanical and Electrical Work.Star Trek S.O.S – Cabinet repairs & Cosmetics.

Internet arcade major havoc