dynabook SATELLITE C50-H, Maintenance Manual

Page: 42 / 161

26
Make sure Wireless LAN module has been firmly connected to the connector on the system
board. Also make sure Wireless LAN module is free of foreign matters.
And if the connector is disconnected, connect it firmly to the system board and return to
Procedure 1. If a foreign matter is found on Wireless LAN Module, remove it and then return to
Procedure 1. If there is still an error, perform Check 2.
Check 2
Wireless LAN Module may be faulty. Replace it with a new one following the steps
described in Chapter 4. If Wireless LAN Module replaced is still not functioning properly, perform
Check 3.
Check 3
System Board may be defective. Replace System Board with a new one following the steps
described in Chapter 4.
2 Troubleshooting 2.19 Battery Pack
2.19 Battery Pack
Battery Pack or system board may be the reason of Battery fault. Either of these two
components may be damaged. To determine i
f the computer’s Battery Pack is functioning
properly, perform following procedures. Start with Procedure 1 and continue with the other
procedures as instruction below.
Procedure 1 Windows Application Test
Procedure 2 Windows Application Test
Procedure 3 Connector Check and Replacement Check
Procedure 1 Windows Application discharge Test
Boot up unit from Battery only, make sure AC adaptor power cable doesn't connect to unit .
If unit can't boot up after pressing power button, connect AC adaptor power cable to unit to
charge battery.
After 10 mins, remove AC adaptor power cable then press power button.
If unit can boot up after pressing power button, go to Procedure 2.
If it can not boot up, go to Procedure 3.
Procedure 2 Windows Application charge Test
Boot up unit from Battery only, make sure Battery is not full charged from system battery
icon in window.