Compal ACY25 series, Руководство по обслуживанию

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The wireless LAN antenna wire, wireless LAN unit or system board may each be the source of a
wireless LAN fault. Any of these components may be damaged. To determine if the computer’s
wireless LAN system is functioning properly, perform the following procedures. Figure 2-15 outlines the
process. Start with Procedure 1 and continue with the other procedures as instructed.
Procedure 1: Diagnostic test
Procedure 2: Connector and replacement check
Procedure 1 Diagnostic test
Run the Diagnostic Program, which will automatically execute the wireless LAN test.
Refer to Chapter 3, Tests and Diagnostics for more information on the program.
If an error is located, go to Procedure 2. If an error is not located, the wireless LAN
system is functioning properly.
Procedure 2 Connector and replacement check
The wireless LAN antenna, wireless LAN unit or system board may be disconnected
or damaged. Disassemble the computer following the steps described in Chapter 4,
Replacement Procedures , and perform the following checks.
Check 1 Make sure that the wireless LAN antenna is firmly connected to the wireless LAN unit
(refer to Chapter 4 for instructions) and that the wireless LAN unit is securely slotted into
the system board. If the problem persists, go to Check 2.
Check 2 Check that the wireless communication switch is turned to “On”, then make sure that the
wireless communication LED on the front panel is lit. If the LED is lit but the wireless LAN
function is still faulty, the antenna may be damaged. Replace with a new antenna
following the steps in Chapter 4,
Replacement Procedures . If the problem persists, or if
the wireless LAN LED is not lit when the wireless communication switch is turned to “On”,
go to Check 3.
Check 3 The wireless LAN unit may be damaged. Replace it with a new one following the
instructions in Chapter 4. If the problem still exists, perform Check 4.
Check 4 The system board may be damaged. Replace it with a new one following the
instructions in Chapter
Chapter
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