Update: Thanks to Team Clark, I bought and swapped out an MPU. It's a newer version of the one I had and I didn't have to mess with swapping chips. All is good. Thanks
I've got an American Original that I've had for a few years. A little over a year ago the monitor went out. I swapped out the power supplies to no avail. I was able to plug in an external monitor and play the game (albeit without touch). Shortly after that, I had to put the machine in storage. I've just brought it out and are trying to resurrect it.
When I plugged it in and powered up, I heard a buzzing. Suspecting a fan either had something blocking the blades, I checked all fans - nothing.
I pulled the CPU and plugged it in on the bench, and found the solalert on the motherboard was making the noise. I replaced both the 2032 batteries on the board, thinking it was a battery warning, but it's still going off.
Anyone have an idea?
As a side note, I need a monitor for it. It's a Tatung model L19LA25M21LC03. A year ago I tried to order one from GET.T. After being strung along for a month they said they didn't have any and couldn't say when they'd get more.
--Jay