Symptom

Serial/Parallel

Call Center:

Repair Center:

Repair Center:

Suggestions

Likely Causes

Comments

General problems

Infrared

General problems

USB

Check settings in BIOS Setup.

Check settings in Control Panel (and in Windows NT Diagnostics).

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.

Motherboard.

Front-IR PCA (front IR

port).

Icon PCA (back IR

port).

Motherboard.

General problems

PCMCIA

Setup problems

AC adapter

Does not power the OmniBook

Miscellaneous

Clock loses time

USB is not supported in Windows NT 4.0.

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.

Try another ac adapter, if available.

Plug in ac adapter for 24 hours to charge backup battery.

Motherboard.

Motherboard. PCMCIA socket.

AC adapter. DC-DC PCA. Motherboard.

Motherboard.

If both slots have problems, replace the motherboard. If only one slot has a problem, try replacing the PCMCIA socket.

The ac adapter is not repairable—it must be replaced.

Charge backup battery.

HP OmniBook 7100

Troubleshooting and Diagnostics

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