NEC 750C manual Troubleshooting

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4 Troubleshooting

Your MobilePro H/PC is designed to provide many hours of service while you are at home or on the road.

For optimum performance, frequently back up and synchro- nize the MobilePro data with your notebook or desktop computer. Then if something happens, most of your data is still available. If you have problems, check the information in the following table for possible solutions.

Troubleshooting

PROBLEM RESOLUTION

The MobilePro has no power.

Nothing appears on the screen.

Check the main battery.

Check the back-up battery.

If you are using an AC adapter, make sure the connections are correct and secure.

Make sure the battery bay cover lock is in the locked position.

Check that the ROM bay cover is properly secure.

Try pressing the Power button again (the unit might have turned itself off if it was not used for a specified time).

Adjust the contrast.

Check the power connections.

Troubleshooting 4-1

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Contents NEC MobilePro 750C User’s Guide Proprietary Notice and Liability Disclaimer Contents Troubleshooting Specifications Modem Commands Index Using this Guide Text ConventionsEnter Features Overview Quick StartUsing Your MobilePro H/PC for the First Time About Quick StartInstalling the Batteries Replace the main battery bay cover MobilePro Quick Setup Windows CE Services Desktop Software Installation MobilePro H/PC Software CD Installation Getting Familiar with Your MobilePro 750C Introducing MobilePro Features WHAT’S in the BOXFront and side features Getting Familiar with Your MobilePro 750C Bottom view Opening the Display Panel Using the Stylus Opening the display panelRecharging the Main Battery Pack Using the stylusBattery Replacement Main Battery Opening the battery bay cover Back-Up Battery Getting Familiar with Your MobilePro 750C Releasing the Battery Cover Lock Use the stylus to remove the drained battery from the bay Battery Precautions Taking Care of the MobilePro Precautions Storage Requirements Routine Cleaning Clean or dust your system as followsUsing the MobilePro Powering on and OFF Powering on and off the MobileProMaking Display Panel Adjustments ContrastAdjusting the contrast BacklightApplication Shortcut Keys Default Application Shortcut Keys Assigning Application Shortcut KeysSettings dialog box Enabling the Display Linkage Switch Voice Recording Using the Voice Recorder PC CardsInserting PC Cards Verify that the PC card is fitted securely into position Removing PC Cards Compact Flash CardsInserting Compact Flash Cards Removing Compact Flash Cards Transferring Data Connecting External Devices Connecting the AC AdapterConnecting the PC Connect Cable Connecting the PC Connect cable Connecting the VGA Cable Connecting the VGA cable Connecting the Internal Modem Connecting the cable to the monitorRemote Access Service Setup Connecting the telephone lineUsing the MobilePro Printing Your Documents Upgrading ROM/RAMResetting the MobilePro Resetting the MobilePro Troubleshooting TroubleshootingTroubleshooting contd For further assistance, call Neccsd Support Services Specifications Baud rate 115.2 Kbps maximum 65 in. W x 5.43 in. D x 1.24/1.5 in. H Available Options Modem Commands AT CommandsAT Commands cont’d Modem Commands A-3 Modulation Values Register Function Range Units Default RegistersResult Codes Numeric VerboseResult Codes cont’d Features IndexRAM ROM Battery Replacement FCC Part Page IC CS-03 FCC Part 15 Class B FCC Warning Declaration of Conformity