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6.3 TROUBLESHOOTING KEYPAD ISSUES
CHAPTER 6: TROUBLESHOOTING
ALL OR SOME OF THE FUNCTION KEYS DO NOT RESPOND
POSSIBLE CAUSES:
1) The keypad connecting ribbon cable has not been properly fit to the console connector.
2) The keypad is damaged.
3) The console control board is damaged.
SOLUTION:
1) Remove the back of the console and check to see if the keypad connecting ribbon cable is connected properly to the console control board.
Reconnect the cable and test the keypad for function (Figures A, B, & C).
a. If the keypad still does not respond, replace the affected keypad.
b. If the keypad does not resolve the issues, replace the console.
FIGURE A
FIGURE B
FIGURE C
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