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Ver 1.4.7.3

Navy Cash Training 

Sales Unit 3: 

Maintenance Procedures
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Ver 1.4.7.3

Objectives

 Discuss basic maintenance and troubleshooting 

procedures on a MT-280

 How to access the ITC CAD Diagnostic Menu

 Discuss basic troubleshooting procedures on an ITC 

CAD

 Explain procedures to add or remove a Vending 

Machine

 Discuss replacement of ITC CADs
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Ver 1.4.7.3

Maintenance and 

Troubleshooting Procedures
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Ver 1.4.7.3

Preventive Maintenance

 Weekly 

– Clean card readers on the MX-925 (Fixed POS in 

Disbursing), MT 280, KIOSK, and CADs 

» Use card reader cleaners

 Basic Troubleshooting

– NC SOP 

– Maintenance Videos 

 Technical Support 

– Phone: Navy Cash CSU – 1-866-662-8922

– E-mail: navycashcenter@frb.org
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Ver 1.4.7.3

Troubleshooting NC Equipment

 Communication Troubleshooting 

– Communications Troubleshooting Guide

» Appendix S of NC SOP

 Basic Troubleshooting

– NC SOP 

– Maintenance Videos 

 Technical Support 

– Phone: Navy Cash CSU – 1-866-662-8922

– E-mail: navycashcenter@frb.org
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Ver 1.4.7.3

MT-280 Troubleshooting 

Procedures
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Ver 1.4.7.3

Troubleshooting MT 280

 Rebooting the MT 280 should always 

be the first step in troubleshooting

 Clean or replace SAM chip 

 Replace SD card

 Replace any faulty MT 280 with a new 

unit. Each ship is issued several 

spares.
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Ver 1.4.7.3

Troubleshooting MT 280

 Error Messages:

– Error Initializing SAM

» May occur during MT 280 initialization because 

SAM is not present

 Action: Install SAM in MT 280 device

– Error Authenticating Card

» Card is blocked

 Action: Have cardholder report to Disbursing 
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Ver 1.4.7.3

Troubleshooting MT 280

– Error Initializing SAM screen
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Ver 1.4.7.3

Troubleshooting MT 280

 Error Messages (cont)

– Examples:

» SD Card Error – SD card is not present or SD card 

message queue is full

 Action: Install SD card or if MT 280 is offline and SD card is 

full, plug MT 280 into network connection point

» SAM Error – SAM needs to be replaced

 Action: Clean SAM or replace SAM

» Boot up Errors (various) – occur when starting MT 280

 Action: Insert good SAM or SD Card, or reboot MT 280
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Ver 1.4.7.3

CAD Diagnostic Screens 
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Ver 1.4.7.3

CAD Diagnostic Groups

Network 

Connectivity Status

Online/Offline

 Provide tools that 

can be helpful in 

managing, 

diagnosing, and 

solving problems 

with the CAD
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Ver 1.4.7.3

CAD Diagnostics Navigation

 To access the CAD 

Diagnostic Screen, 

press the left button 

for @ least 3 seconds

 Buttons are located 

below the screen and 

above the card reader.

Done Select Next

Left Middle Right
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Ver 1.4.7.3

CAD Diagnostics Navigation

CAD displays the “CAD Diagnostics” 

screen

Select “Start” by pressing the middle 

button to continue to the first diagnostic 

group
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Ver 1.4.7.3

CAD Diagnostics Navigation

CAD displays the first diagnostic group, 

i.e. “General”

Press the right (Next) button until the 

desired diagnostic group is displayed

Example:

Press the right button 4 times to access the 

“Queue” group 
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Ver 1.4.7.3

CAD Diagnostics Navigation

“Queue” group is displayed

Press “Select” to view the Total number of messages

Then, press “Select” or “Next” button to view the 

total Transactions in the queue
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Ver 1.4.7.3

CAD Diagnostics Navigation

The total number of “Transactions”

should read “zero”

Note: 

If other than zero, STOP and investigate. Do not

close machine until number of transactions shows

zero or open a case number with CSU for 

assistance

Press the left (Done) button twice to exit
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Ver 1.4.7.3

CAD Troubleshooting 

Procedures
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Ver 1.4.7.3

Troubleshooting CAD

 Verify if ship’s network is up

– If network is down, do not cycle power

– CAD can operate in offline mode 

 Verify if routers are powered on

 Check the cables from the CADs to the routers

 Cycle power to the vending machine (turn off and 

turn on vending machine)

 Clean SAM chip or Replace SAM chip

 Check SD card

 Replace CAD from stock
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Ver 1.4.7.3

Troubleshooting CAD

 For Technical Assistance

– Contact Navy Cash Central Support Unit (CSU)

– CSU will assign a case number that will be used 

to track the trouble call

– CSU will handle trouble call directly or forward 

it to the proper person

– Use Navy Cash Trouble Call Worksheet
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Ver 1.4.7.3

Troubleshooting CAD

 Failed CADs

– When directed to return CAD to NC Depot, record the traceable 

tracking number and date shipped on the Trouble Call Worksheet

– Include Case # assigned by CSU and equipment serial number 

 Stuck transactions

– When directed, CADs with stuck transactions are sent to Cogent 

Systems 

– Record the traceable tracking number and date ship on the 

Trouble Call Worksheet

– Include Case # assigned by CSU and equipment serial number 

– Sales retain copy of Trouble Call Worksheet with monthly report 
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Ver 1.4.7.3

Troubleshooting CAD

 Card Readers

– Proper cleaning of the card readers can significantly 

reduce the incidence of card readers failing to read a 

Navy Cash Card

 Shipboard Network or NC Server down for 

extended period

– Revert to accepting cash (if authorized by CO)

– Replace CAD with a dollar bill validator and/or turning 

on the coin changer
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Ver 1.4.7.3

Troubleshooting CAD

 Error Messages are displayed if :

– SD Card is not present

– CAD is disabled

– Vending Machine is out of stock

– System Error

– Examples:

» Out of Service-SD – no SD card in the CAD

 Insert SD card

» CAD Disabled – no communications between CAD 

and MDB interface
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Ver 1.4.7.3

Add/Remove Vending Machine

and

Changing CAD
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Ver 1.4.7.3

Vending and Ship’s Store Screen 

Merchants and Vending 

Machine Menu Tree

•Expand (+)

•Collapse (-)
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Ver 1.4.7.3

CAD Diagnostic Information

Terminal ID
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Ver 1.4.7.3

Adding a Vending Machine

 Ship’s responsibility

– To add a vending machine and CAD

– Contact Navy Cash CSU

– Pull cabling from nearest Navy Cash router

– Hook up new machine 

– Set up new machine in the Navy Cash System 

Configuration

– may contact NC Depot for assistance (any costs will be 

borne by the ship)

 No transactions can occur

– CAD must be associated with the Vending Machine in 

the Disbursing Application
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Ver 1.4.7.3

Adding a Vending Machine - cont. 

 Log in to the Navy Cash Disbursing Application

 Select “Vending and Ship’s Store” link

 Expand the Merchants and Vending Machines menu tree 

 Enter the New Vending Machine ID and location

 Select the CAD Terminal ID from the pull down menu

 Click on “Add Vending Machine” button
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Ver 1.4.7.3

Removing a Vending Machine

 Log in to the Navy Cash Disbursing Application

 Select “Vending and Ship’s Store” link

 Expand the Merchants and Vending Machines menu tree

 Highlight the appropriate Vending Machine

 Click on “Remove Vending Machine” button

 Keep the Navy Cash Ethernet and MDB cables

» Use the same cables when adding a new vending machine

 Note: When removing a CAD, ensure all transactions have been downloaded.
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Ver 1.4.7.3

Changing a CAD

 Log in to the Disbursing App 

 Click on “Vending and Ship’s Store” link

 Expand the Merchants and Vending Machines menu tree

 Highlight the appropriate Vending Machine

 Select the appropriate CAD Terminal ID from pull down menu 

 Click “Update Vending Machine Data” button

 Note: When changing/removing a CAD, verify that all transactions have been 

downloaded to the Navy Cash Server. 

Pull-down Menu
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Ver 1.4.7.3

Questions