dynabook SATELLITE C50-H, Maintenance Manual

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Make sure Camera Module FPC Cable has been firmly connected to the connector on System
Board. Also make sure Camera 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 Camera Module, remove it and then return to
Procedure 1. If the problem persists, perform Check 2.
Check 2
Camera Module may be faulty. Replace it with a new one following the steps described in
Chapter 4. If Camera 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 2.18 Wireless LAN
2.18 Wireless LAN
Wireless Module or system board may be the reason of Wireless LAN fault. Either of these
two components may be damaged. To determine if the computer’s Wireless LAN module 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 Connector Check and Replacement Check
Procedure 1 Windows Application Test
Place unit to location near wifi hotspot. Execute wifi applications in Windows, then active
wireless connection. Check whether unit can normally connect to wifi hotspot. If connection
is fail, go to Procedure 2. If error is not located, Wireless LAN system is functioning properly.
Procedure 2 Connector Check and Replacement Check
Wireless LAN Module is connected to the system board. If Wireless LAN malfunctions, there
may be a bad connection between Wireless LAN Module and the system board, or either
might be faulty. Disassemble the computer following the steps described in Chapter 4 and
perform the following checks:
Check 1