Toshiba Portege M800 PPM81C-05Q02E Users Manual Canada; English - Page 175

Troubleshooting Problem No sound is heard Procedure Check the software volume settings. Make sure the headphone connection is secure. If problems persist, contact your dealer. Monitor Refer also to Chapter 8, Optional Devices, and to your monitor's documentation. Problem Procedure Monitor does not turn on No display Make sure that the external monitor's power switch is on. Confirm that the external monitor's power cable is plugged into a working power outlet. Try adjusting the contrast and brightness controls on the external monitor. Press hot keys Fn + F5 to change the display priority and make sure it is not set for the internal display. Display error occurs Check that the cable connecting the external monitor to the computer is attached firmly. If problems persist, contact your dealer. Modem Problem Procedure Communication Make sure the computer's internal modem software can't initialize settings are correct. Refer to Phone and Modem modem Properties in the Control Panel. You can hear a dial tone If the call is going through a PBX machine, make but can't make a call sure the communication application's tone dial detection feature is disabled. You can also use the ATX command. You place a call, but a Make sure the settings are correct in your connection can't be communications application. made After making a call you Make sure the tone or pulse selection in your can't hear a ring communications application is set correctly. You can also use the ATD command. User's Manual 9-15