2.16 Microphone Port 2 Troubleshooting
Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual 2-27
2.16 Microphone Port
To determine if the computer’s Microphone Port is functioning properly or malfunctions,
perform following procedures. Start with Procedure 1 and continue with the other procedure
as instruction below.
Procedure 1 Windows Application Test
Procedure 2 Connector Check and Replacement Check
Procedure 1 Windows Application Test
Microphone Port Connector is mounted on System Board. Connect external Microphone with
Microphone Jack interface to the computer’s Microphone Port, then power on the computer
into Windows. The computer will automatically detect this Microphone device through
Microphone Port. Execute Function Programs in Windows, if the Microphone device appears
to have a certain problem, go to Procedure 2. If an error is not located, Microphone Port is
functioning properly.
Procedure 2 Connector Check and Replacement Check
If Microphone Port on System Board malfunctions, there may be a bad connection between
Microphone device and System Board, or either of System Board and CPU might be faulty.
Disassemble the computer following the steps described in Chapter 4 and perform the
following checks:
Check 1 Make sure Microphone device cable has been firmly connected to
Microphone Port of System Board. Also make sure Microphone Port on
System Board 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 Microphone Port of
System Board, remove it and then return to Procedure 1. If the problem
persists, perform Check 2.
Check 2 System Board may be faulty. Replace it with a new one following the steps
described in Chapter 4. If Microphone Port is still not functioning
properly, perform Check 3.
Check 3 CPU may be defective. Disassemble the computer following the steps
described in Chapter 4 and replace CPU with a new one.
Microphone
Port
System Board
CPU
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