HP Dc7700 HP Compaq dc7700 Business Desktop PC Service Reference Guide, 1st Ed - Page 238

Troubleshooting Without Diagnostics Solving Keyboard and Mouse Problems Solving Keyboard and Mouse Problems Problem Cause Keyboard commands and typing are not recognized by the computer. Keyboard connector is not properly connected. Program in use has stopped responding to commands. Keyboard needs repairs. Wireless device error. Computer is in standby mode. Cursor will not move using the arrow keys on the keypad. The Num Lock key may be on. Solution 1. On the Windows Desktop, click Start. 2. Click Shut Down. The Shut Down Windows dialog box is displayed. 3. Select Shut down. 4. After the shutdown is complete, reconnect the keyboard to the back of the computer and restart the computer. Shut down the computer using the mouse and then restart the computer. See the Worldwide Limited Warranty for terms and conditions. 1. Check software, if available, for device status. 2. Check/replace device batteries. 3. Reset receiver and keyboard. Press the power button to resume from standby mode. Ä When attempting to resume from standby mode, do not hold down the power button for more than four seconds. Otherwise, the computer will shut down and any unsaved data will be lost. Press the Num Lock key. The Num Lock light should not be on if you want to use the arrow keys. The Num Lock key can be disabled (or enabled) in Computer Setup. D-20 433612-001 Service Reference Guide, dc7700