Toshiba Satellite/Satellite PRO T230D SERIES Manuel D’Utilisation

  

                                                                                                            

Satellite T230D/T235D Series Maintenance Manual 

                                                                    

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To determine if the computer’s built-in speakers are functioning properly, perform the 
following procedures. Figure 2-7 outlines the process. First adjust the speaker volume to an 
appropriate level. Start with Procedure 1 and continue as instructed. 

Procedure 1:  Audio source test 

Procedure 2:  Earphone test 

Procedure 3:  Connection check 

Procedure 4:  Replacement check 

Try different audio sources (e.g. an audio CD and digital music file) to determine whether the 
fault is in the speaker system or not. If not all sources have sound problem, the problem is in 
the monaural devices. If all have the same problem, continue with Procedure 2. 

Connect a set if earphones or external speakers. If these function correctly, go to Procedure 3. 
If they do not function correctly, the system board may be defective or damaged. Replace it 
with a new one. 

Disassemble the computer following the steps described in Chapter 4, Replacement 
Procedures and make sure the speaker cable is firmly connected to the audio board. If the 
speakers are still not functioning properly, go to Procedure 4. 

If the monaural speakers don't sound properly, the monaural speakers may be defective or 
damaged. Replace them with new ones. If the monaural speakers still do not work properly, 
try replacing in turn the audio board and system board.