I have an S9000 5 Reel Game that I recently set up and had it playing great.
The problem started out with the LCD color flickering in and out, which then moved to the entire display going black intermittently until it just finally went black. Now it just stays powered off (red LED).
I suspected a bad LCD, so I swapped in a spare, still no video. I get the LED to turn Green on power up, display reads "No Signal" then LED goes Red.
Now I'm thinking I have a faulty MPU not sending Video Out. So, I tried 3 spare MPUs with still no change.
My questions are...
1. Can you test an MPU on the bench with just the MPU, it's Power Supply and a Computer Monitor? Or does it require the other 2 Main Power Supplies located inside of the Cabinet?
2. Could this be a Cable Problem or the Bulkhead Connector between the Upper and Lower Cabinet? I'm not quite ready to disassemble the machine to start swapping Cables yet, but will if it needs to be done.
If I can't bench test, I will try to link an external Cable directly from MPU to rear of LCD.
Thanks, Curtis ash100