HP OmniBook 7100 Troubleshooting and Diagnostics 3-9 Symptom Call Center: Repair Center: Repair Center: Suggestions Likely Causes Comments Serial/Parallel General problems Check settings in BIOS Setup. Check settings in Control Panel (and in Windows NT Diagnostics). Motherboard. Infrared General problems Infrared communication is not supported in Windows NT 4.0. Infrared is disabled and no drivers installed as shipped. (Drivers are included.) Check settings in BIOS Setup. Standard IrDA and fast-IrDA are incompatible (they use different drivers). For fast-IrDA, check for DMA conflict with ECP parallel port. Front-IR PCA (front IR port). Icon PCA (back IR port). Motherboard.
USB General problems USB is not supported in Windows NT 4.0. Motherboard. PCMCIA Setup problems Make sure Card Executive is installed for Windows NT. If the card requires an IRQ, check that there is one available. Check for conflicts or refresh the device list in Device Manager (Windows 95) or Administrative Tools or Control Panel System (Windows NT). Reboot the computer. Try the card in the other slot or in another computer. Check the OmniBook website for installation instructions (page vi). Download current drivers from the card manufacturer’s website. Motherboard. PCMCIA socket. If both slots have problems, replace the motherboard.
If only one slot has a problem, try replacing the PCMCIA socket. AC adapter Does not power the OmniBook Try another ac adapter, if available. AC adapter. DC-DC PCA. Motherboard. The ac adapter is not repairable—it must be replaced. Miscellaneous Clock loses time Plug in ac adapter for 24 hours to charge backup battery. Motherboard. Charge backup battery.