Benq S52 Instruction De Maintenance

 

 Product System (PS) 

Subject: 

C4-425 Trouble Shooting Guide 

Part No.: 

99.K4501.000 

Rev.:            0 

 

Doc. No. 

99.K4501.000-C4-425-001 

 

Project Code: 

99.K4501.001 

Component Part. 

No.: 

NA 

Page  30  of  35    

Model Name: 

DHS5 

 

Form No: BQY0-0B-003-32(031205) 

30

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

To check if the computer’s cooling module is defective or malfunctioning, follow the troubleshooting 
procedures below as instructed. 

Procedure 1    Test Program Check 

Procedure 2    Connector Check and Replacement Check 

 

Procedure 1 Test Program Check 
Execute the Fan On/Off test program available as part of the maintenance test program.    This test 
program checks the cooling module.    Insert the diagnostics bootable CD in the computer's CD-ROM, 
turn on the computer and run the test.    See Diagnostic user guide for information on how to perform the 
test. 
If any error is detected by the test, go to Procedure 2. 
 

Procedure 2 Connector Check and Replacement Check 
The cooling module is connected to the system board.    If the cooling module malfunctions, there may be 
a bad connection between the cooling module and the system board or either might be faulty. 
Disassemble the computer following the steps described in Tear Down guide and perform the following 
checks:  
Check 1 

Make sure the cooling module has been firmly connected to the connector on the system 
board.    Also make sure that the tape is not stuck to any part of the fan and that the fan is