Symptom Probable Cause Solution
Buttons do not work or are partly Switches not properly connected. Make sure that the common post of the inoperable. Or the selections keep switch is connected to ground. scrolling on Operator Mode menus.
Make sure each individual switch is working by doing the Control Panel Test found in the SYSTEM TESTS section.
Make sure that the signal wire for that particular switch is connected to the normally open post of the switch.
JAMMA Harness connected improperly. Identify Pin 1 on the JAMMA connector and on the PCB. If installed incorrectly, damage to the PCB may have occurred.
Coin counter not working Miscellaneous. Make sure that the signal wire has a connection from the switch to the board.
Make sure +12v is hooked up to the counter.
Trackball mounted correctly but is swinging 45° out of line
In a two or more player game, controls only work for players 1 and 3
Trackball does not work
SW1-Dip switch 3, found near the JAMMA, is not "ON"
SW1-Dip switch 2, found near the JAMMA, is in the "OFF" position.
No +5 voltage.
The signal wire is not connected to coin counter. (Check continuity).
Verify that the counter is good.
Make sure SW1-Dip switch 3 is "ON".
SW1-Dip switch 2 must be in the "ON" position for cabinets with one set of player controls.
Bad inductor(L7) or bad connection to trackball.
Was this article helpful?