MDE-4784D FlexPay™ Encrypting PIN Pad Start-up and Service Manual · December 2011
Page 65
Troubleshooting Communication Issues
Start-up and Service
The Advantage Series and Encore 300 Dispensers
The key does not work as labeled on the FlexPay EPP or on the Auxiliary
keypad
To troubleshoot this problem, proceed as follows:
1
Check the key mapping. In most cases, it would have been mapped incorrectly and has to be
remapped.
2
Ensure that the CRIND has been coldstarted.
Both the FlexPay EPP and Auxiliary keypad appear dead (do not beep
when keys are pressed)
To troubleshoot this problem, proceed as follows:
1
Check the rear of the FlexPay EPP to ensure that the Red and Green LEDs are flashing. If the
Red LED is solid Red, then attempt a warmstart. If the LED is still solid Red, then replace the
FlexPay EPP.
2
Unplug the Auxiliary keypad from the rear of the FlexPay EPP and verify if the FlexPay EPP
keys start to beep. If so, replace the Auxiliary keypad. If the keys still do not beep, replace the
FlexPay EPP.
When you are connecting cables to the CRIND Logic Board you notice
that a P282 Connector is not present
CRIND Logic Boards T17764-G1 and T17764-G2 do not have a SmartPad connector on them
(you must replace Logic Boards with either a T17764-G3/-G4 or M03651A001/002).
A beep is heard when the keys on the FlexPay EPP are pressed.
However, debit does not work
To troubleshoot this problem, proceed as follows:
1
This indicates that a coldstart has not been performed. Install jumpers on coldstart pins on
CRIND Logic Board and perform a coldstart.
2
Ensure that cable connections to P282 on the CRIND Logic Boards are secure.
You do not hear a beep when pressing the keys on the FlexPay EPP
(keypad appears dead)
To troubleshoot this problem, proceed as follows:
1
Check if a beeper is installed on the unit.
2
The wrong firmware may be installed. Ensure that V22 is installed for MOC applications, and
V62 for Generic applications.
3
Ensure that the LEDs on the rear of the FlexPay EPP are flashing.
4
Enter the Diagnostic Mode and perform the Keypad Test (refer to