Headphone Port; Procedure 1 Windows Application Test; Procedure 2 Connector Check And Replacement Check - Toshiba Satellite C850D Maintenance Manual

2 Troubleshooting

2.15 Headphone Port

To determine if the computer's Headphone 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

Headphone Port Connector is mounted on System Board. Connect external Headphone with
Headphone Jack interface to the computer's Headphone Port, then power on the computer
into Windows. The computer will automatically detect this Headphone device through
Headphone Port. Execute Function Programs in Windows, if the Headphone device appears
to have a certain problem, go to Procedure 2. If an error is not located, Headphone Port is
functioning properly.

Procedure 2 Connector Check and Replacement Check

If Headphone Port on System Board malfunctions, there may be a bad connection between
Headphone 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 Headphone device cable has been firmly connected to
Headphone Port of System Board. Also make sure Headphone Port on
System Board is free of foreign matters.
Headphone
Port
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 Headphone 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 Headphone 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.
2-26
System Board
Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual

2.15 Headphone Port

CPU