FKI Tech Info

Auditor Operation
Tubes
Door
Drops
Users
Reports

Auditor Software
Programming
CPU Versions
CPU Reset
Door Slam
Sled Test
Error Messages

Auditor Service
Power
CPU Board
Driver Board
Doors
Door Sensor
Vending
Input Sensors
Output Sensor
Sensor Board
Validators
Incorrect Totals
Keypad
Display
Printer
Key Switches
Parts List

27 Series
Operation
Programming
Troubleshooting
Parts List

Auditor Autobank - Keypad

No Response when Buttons are Pushed

1. Is screen frozen on an error message? If so, refer to appropriate section.
2. Check cable connection from keypad membrane to display board.
3. Check cable connection from display board to CPU board.
4. Test (if practical) the keypad. If the keypad fails or the test procedure below is not practical to perform, replace the keypad.
5. Replace the CPU if keypad is not the problem.
6. Note: The display board is only a connection point for keypad signals and, though the possible problem, it is highly unlikely to be at fault for this problem. Replace the display board and display to CPU cable only if all above checks are performed okay.

Keypad Test

Measure continuity between the following pins of P2 (flat cable from keypad to display board) while pressing the associated keypad button. Pin 1 is marked with an arrow on the connector. Buttons should measure low impedance (up to about 50 ohms) when pressed and high impedance when unpressed.

Keypad Button	Ref Pin	Meas Pin
1	4	10
2	5	10
3	1	10
4	2	10
5	3	10
6	4	9
7	5	9
8	1	9
9	2	9
0	3	9
ENTER	4	6
CLEAR	5	6
ESC	2	7
DROP	5	7
VEND	1	7
REPORT	3	6
LOAD	4	7
DOORS*	4	8
UNLOAD	3	7
DISPLAY**	2	6
PROGRAM	1	6
CHANGE (F1)	2	8
EXT. DROP (F2)	3	8
INSTA-DROP1 (F3)	5	8
INSTA-DROP2 (F4)	1	8

*May be labeled START DOOR TIMER.
**May be labeled TIMER DISPLAY.

Keypad Replacement

1. Peel back the old keypad.
2. Disconnect the keypad from the display board.
3. Reverse this procedure to install new keypad.

Peel Back Keypad Membrane:
Peel

Replace Keypad Membrane: