IBM A40I TYPE 2271 User Manual

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2.   
The speaker is secured by one tab on either side and two at the bottom. Firmly 
push the speaker up from the bottom until it comes out from the tabs. 
  
 
Power supply 
If the power-on indicator is not on, the power supply fan is not running, or the 
computer will not power-off, use the following procedures. 
 
Check/Verify 
FRU/Action 
Check the following for proper installation. 
 
 
Power Cord 
 
 
On/Off Switch connector 
 
 
On/Off Switch Power Supply connector 
 
 
System Board Power Supply connectors 
 
 
Microprocessor(s) connection 
Reseat 
Check the power-on switch for continuity. 
Power Cord 
Check the power-on switch for continuity. 
Power-on Switch 
  
20-pin main power supply connection 
 
Attention:   
These voltages must be checked with the power supply cables connected to the system 
board 
 
 
Chapter 5. FRU Replacements 
33