Arkansaw1983
Member
Dealing with a Getaway:
From Marvins Manual:
Switch Circuit problems and potential solutions.
Game comes up, but accepts no coins and won't start a game.
Check fuse F115 on the power driver board. Check switch #13, the start button, on the cabinet. The white-orange and green-brown wires must be connected to the switch blades. Check CPU connector J206, J207, J208, J209 for contamination. Check U20, pin 1; it should be high and pin 18 should be low. Check U18 pins 5, 2 which should be low. Check D5.
The speaker squaks when you hit the credit button to start.
Following Marvins repair manual, it looked like U20 and U16. They are located below the battery and were corroded. I replaced those two pins and took the battery pack off the board and mounted it remotely. That did not solve the problem.
U20 – 18 Pin ULN2803A - 5162-12422-00
U16 – 14 pin LM339 -5370-12272-00
What does it mean when Marvin says, a pin should be "high" or "low".
Thanks gang.
From Marvins Manual:
Switch Circuit problems and potential solutions.
Game comes up, but accepts no coins and won't start a game.
Check fuse F115 on the power driver board. Check switch #13, the start button, on the cabinet. The white-orange and green-brown wires must be connected to the switch blades. Check CPU connector J206, J207, J208, J209 for contamination. Check U20, pin 1; it should be high and pin 18 should be low. Check U18 pins 5, 2 which should be low. Check D5.
The speaker squaks when you hit the credit button to start.
Following Marvins repair manual, it looked like U20 and U16. They are located below the battery and were corroded. I replaced those two pins and took the battery pack off the board and mounted it remotely. That did not solve the problem.
U20 – 18 Pin ULN2803A - 5162-12422-00
U16 – 14 pin LM339 -5370-12272-00
What does it mean when Marvin says, a pin should be "high" or "low".
Thanks gang.