TravelMate 2420 / Aspire 3620 Service Guide
Page 88
... Reconnect the keyboard cable. Battery pack System board System hangs intermittently. Remove battery pack and let it cool for 2 hours. Device driver Device cable Device System board Keyboard/Touchpad-Related Symptoms Symptom / Error Keyboard (one or more keys) does not work . Reconnect hard.... Action in Sequence Enter BIOS Setup Utility to Enabled. Refresh battery (continue use battery until power off, then charge battery). USB does not work correctly. Keyboard System board Reconnect touchpad cable. Press Fn+F5, LCD/CRT/Both display switching System board System ...
... Reconnect the keyboard cable. Battery pack System board System hangs intermittently. Remove battery pack and let it cool for 2 hours. Device driver Device cable Device System board Keyboard/Touchpad-Related Symptoms Symptom / Error Keyboard (one or more keys) does not work . Reconnect hard.... Action in Sequence Enter BIOS Setup Utility to Enabled. Refresh battery (continue use battery until power off, then charge battery). USB does not work correctly. Keyboard System board Reconnect touchpad cable. Press Fn+F5, LCD/CRT/Both display switching System board System ...