Serial and Infrared Communications Problems • If a modem doesn’t work properly, in Windows Help use the modem troubleshooter. • If you cannot make a serial connection at high speed (115 K baud), try changing the Power Management setting in the System Configuration Utility to “Moderate” (from “Maximum”): In the SCU, open the Power menu, select Power Controls, and set CPU Power Management to Moderate. • For an infrared connection, start Infrared Monitor before you connect. In Control Panel, double-click Infrared. • If an infrared data connection doesn’t work, make sure you’re using the COM4 port (the “virtual” or “simulated” IR port).
For printing, use the LPT3 port instead (as the virtual port), unless you are using an HP Deskjet 600C or 680C. • If an infrared connection does not work, try disabling it and then re- enabling it. To do this, open OmniBook Tools and select the Communications tab. Select Start, Infrared and the Options tab. Clear the box for Enable Infrared Communications On: (port). Click Apply. Put a checkmark back in the first box, then click OK. • For an MS-DOS program using an infrared connection, run the program in an MS-DOS Prompt window instead of in MS-DOS mode. • Try re-aligning the two devices to align their infrared ports. Make sure the two devices are no more than 1 meter apart.
• Check the settings in your communications software and in the OmniBook's IR Monitor. IrDA must be enabled. Parallel Port Problems • If a parallel device will not work correctly, its bus speed might be too slow for the OmniBook. You can decrease the OmniBook’s bus speed to 33 MHz by holding down the FN key and pressing the minus key. (To restore the normal speed, press FN and the plus key simultaneously.) Sound Problems • Check the configuration of the sound card driver. I/O addresses and interrupt values (IRQs) are listed in the Getting Started manual. • Check the playback or recording sound levels, channels, and muting— double-click the speaker symbol in the taskbar.
If the volume keeps reverting to old settings • The hot-key volume and mute controls (FN+UP ARROW, FN+DOWN ARROW, FN+SPACEBAR) are effective for the duration of the current audio file only. Use the Windows volume controls to effect a change permanently. General Operating Problems 68