Toshiba Satellite L450 L450d Pro Maintanance Manual

1 Hardware Overview Error! Style not defined. Error! Style not defined.   
Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual  1-14 
1.5  Batteries 
The computer has the following two types of batteries: 
  Main Battery Pack 
  Real Time Clock (RTC) Battery 
 
1.5.1  Main Battery 
The main battery pack serves as the com puters main power source when the AC adapter is not 
attached. The main battery maintains the state of the computer so that it can resume it. 
  3-cell LI-ION / 6-cell LI-ION...

Error! Style not defined. Error! Style not defined.   1 Hardware Overview  
Satellite L450/Pro L450/L450D/Pro L450D Maintenance Manual  1-15 
NOTE: The time required for normal charge depends on the power consumption by\
 the 
system. Using the fluorescent lamp and frequently accessing the disk con\
sume much power 
and lengthen the charge time. 
Any of the following cases stops battery charge: 
1.  The battery becomes fully charged. 
2.  The AC adapter or battery pack is removed. 
3.  The battery or AC...

  
Chapter 2 
Troubleshooting Procedures 
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2 Troubleshooting Procedures 
 Satellite L450D/455D, Satellite pr o L450D Series Maintenance Manual 
  
                                                                       
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Chapter 2  Contents 
2.1 Troubleshooting Introduction ........................................................................\
.................... 3 
2.2 Troubleshooting Flowchart ........................................................................\
........................ 4 
2.3  Power Supply...

2 Troubleshooting Procedures 
 Satellite L450D/455D, Satellite pr o L450D Series Maintenance Manual 
  
                                                                       
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Figure 
Figure 2-1        Troubl eshooting Flowchart(1/2) ….…………………………\
………………..4 
Figure 2-1        Tr oubleshooting Flowchart(2/2)…..………………………\
…………………..6 
Figure 2-2        Power Supply Flowchart ………….…………\
………………………………..9 
Figure 2-3       Display Flowchart …………………………………………\
…………………14 
Figure 2-4  Keyboard troubleshooting...

2 Troubleshooting Procedures 
 Satellite L450D/455D, Satellite pr o L450D Series Maintenance Manual 
  
                                                                       
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2.1  Troubleshooting Introduction 
Chapter 2 describes how to determine if a Fi eld Replaceable Unit (FRU) in the computer is 
causing the computer to malfunction.  The FRUs covered are:  
1. Display  5. Speaker  9. Camera  13. HDMI 
2. Keyboard  6. Optical drive  10. 3in1 card  14. MIC 
3. External USB 
ports  7. Modem  11. HDD...

2 Troubleshooting Procedures 
 Satellite L450D/455D, Satellite pr o L450D Series Maintenance Manual 
  
                                                                       
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2.2  Troubleshooting Flowchart 
If you know the location of the ma lfunction, turn directly to the appropriate section of this 
chapter. If the problem is unspecified, use  the flowchart in Figure 2-1 as a guide for 
determining which troubleshooting procedures  to execute.  Before performing any 
troubleshooting procedures,...

2 Troubleshooting Procedures 
 Satellite L450D/455D, Satellite pr o L450D Series Maintenance Manual 
  
                                                                       
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START
Connect the AC adapter to the DC- IN socket
Is the DC-IN LED on?
Is the Battery LED on?
Turn the Power switch on
Is the Power On LED on?
Is the Toshiba logo messagedisplay?
If the password message
displays, type the password, then press Enter.
Is Toshiba Windows beingloaded?
A
Yes
Yes
Yes
Yes
Yes
Yes
Perform the Power...

2 Troubleshooting Procedures 
 Satellite L450D/455D, Satellite pr o L450D Series Maintenance Manual 
  
                                                                       
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A
Does typed characters appear correctly?
Insert USB memory disk.
Then run the diagnostics test program.
Is the diagnostics test loaded?
Allow each test to perform automatically
Is an error detected by any of the
diagnostics tests?
System is normal
End
Yes
Yes
Yes
No
Perform the Keyboard
Troubleshooting procedures in section...