Solving Front Panel Component Problems - Compaq dc7700 - Convertible Minitower PC Service & Reference Manual

Troubleshooting Without Diagnostics

Solving Front Panel Component Problems

Solving Front Panel Component Problems
Problem
A USB device, headphone,
or microphone is not
recognized by the
computer.
D–32
Cause
It is not properly
connected.
The device does not
have power.
The correct device
driver is not installed.
The cable from the
device to the computer
does not work.
The device is not
working.
433612-001
Solution
1. Turn off the computer.
2. Reconnect the device to the front of
the computer and restart the
computer.
If the USB device requires AC power,
be sure one end is connected to the
device and one end is connected to a
live outlet.
1. Install the correct driver for the
device.
2. You might need to reboot the
computer.
1. If possible, replace the cable.
2. Restart the computer.
1. Replace the device.
2. Restart the computer.
Service Reference Guide, dc7700