Another S2000 Netplex error

[ATXFire]

hey all! I got to working on an S2000 that I picked up, just haven’t had time to mess with it. Here’s where I’m at and stumped. Originally it had a ram error showing on it. The battery had been replaced at some point but was at low voltage, and the machine was sitting for a couple years according to the PO. I replaced the battery with a button cell, and put the mpu back in today. I was still getting a ram error. Searching here, someone said to swap the ram chips, did that. The machine came up with a net plex error after it said display test passed. Before anyone yells about searching, I did. I got all the info about the power supply, but what no one mentioned, that’s different on mine is that the red display section comes up garbled. Once it says net plex, the GD speaker starts beeping and no JP key turns, mpu reset button presses will make it stop beeping. It’s a beeping nightmare! Anyway, attaching a pic to show the display issue. Green light and 3 yellow LED’s on the mpu, so pretty sure that’s good. Any help is appreciated!

[qbert]

Are you sure none of the RAM chip pins did not snap off or miss the socket when you put them back in?
If that is OK. Most likely the red LED display has a problem.

[therockinelvis]

I think maybe the BEEPING you are getting is like the door open alarm. Or is it like the beeping of the "take ticket" ?