Where are the ROMS? (not mame), And sound issues

daughterdad

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On a as-2518-17 board where are the roms? I mean which chip is the rom. I just got a working board with different roms than what I need. I want to switch them out.


Also the sound is just a screech. How to trouble shoot?

and the displays don't light up. How to trouble shoot?
 
On a as-2518-17 board where are the roms? I mean which chip is the rom. I just got a working board with different roms than what I need. I want to switch them out.

U1-U6 on the MPU are ROM locations. MPUs can be strapped to use a bunch of different ROMs. You'll need to ensure it's jumpered to use the ROMs you're intending to use.

Also the sound is just a screech. How to trouble shoot?

What game? What sound board?

and the displays don't light up. How to trouble shoot?

Start by checking the display fuse (F2). Does the game boot and play but the displays just don't work or is it not booting at all?
 
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I swapped the roms, and it works

The game is Dracula. Sound board is. A3005. I think that is the board number. Just a screech and some other clicks.

Game boots and plays. F2 is fine.
 
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