Toshiba Satellite L450 L450d Pro Maintanance Manual
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Page 61
2 Troubleshooting Procedures
Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual
27
Procedure 5 Connection check and replacement check
The optical drive connects to the system board.
The drive may be disconnected, or the drive
or system board may be damaged. Disassemble the computer following the steps described in
Chapter 4, Replacement Procedures, and perform the following checks:
Check 1 Make sure the...
Page 62
2 Troubleshooting Procedures
Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual
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2.10 Modem Troubleshooting
START
Computer unable to
detect telephone signal?
END
Perform connection check (Procedure 2)
Perform replacement check
(Procedure 3)
Perform telephone line connection check
(Procedure 1)
Check / replace
telephone line and connections
Yes
Replace system board
No
Figure 2-9 Modem troubleshooting process
Page 63
2 Troubleshooting Procedures
Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual
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This section describes how to determine if
the computers modem is functioning properly.
Figure 2-9 outlines the process. Perform the steps below starting with Procedure 1 and
continuing with the other procedures as required.
Procedure 1: Telephone line connection check
Procedure 2: Modem card connection check
Procedure 3:...
Page 64
2 Troubleshooting Procedures
Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual
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2.11 Wireless LAN Troubleshooting
START
Perform diagnostic test
(Procedure 1)
Was a wireless LAN problem delected?
Perform connector and replacement check
(Procedure 2)
Replace wireless LAN antenna/unit
Replace system board
END
Yes
Wireless LAN system
is not faulty. Continue
troubleshooting - refer to Figure 2.1
No
Figure 2-10...
Page 65
2 Troubleshooting Procedures
Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual
31
Figure 2-10 outlines the process. Start with
Procedure 1 and continue with the other
procedures as instructed.
Procedure 1: Diagnostic test
Procedure 2: Connector and replacement check
Procedure 1 Diagnostic test
Run the Diagnostic Program, which will automatically execute the wireless LAN test. Test
and Diagnostic for...
Page 66
2 Troubleshooting Procedures
Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual
32
2.12 Camera Troubleshooting
Figure 2-11 Camera troubleshooting process
Page 67
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Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual
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The Camera board or system board may be the reason of a Camera fault. Either of these two
components may be damaged. To determine if the computer’s Camera is functioning
properly, perform the following procedures. Fi
gure 2-11 outlines the process. Start with
Procedure 1 and continue with the other procedures as instructed....
Page 68
2 Troubleshooting Procedures
Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual
34
2.13 3 in 1 card Troubleshooting
START
Do errors occur during 3 IN 1 CARD test?
Perform 3 IN 1 card socket replacement check
(Procedure 2)
Replace system board
END
3 IN 1 unit is not faulty.
Perform 3 in 1 CARD test (Procedure 1)
No
Yes
Figure 2-12 3in 1 card...
Page 69
2 Troubleshooting Procedures
Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual
35
Procedure 1: Bridge media assemble card test
Procedure 2: Express socket replacement check
Procedure 1 Bridge media assemble card test
The Bridge media assemble card test card c ontains a Bridge media assemble card test
program. Ensure the card in fully inserted into the socket before running the program.
If an error occurs...
Page 70
2 Troubleshooting Procedures
Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual
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2.14 HDD Troubleshooting
Figure 2-13 HDD troubleshooting process
The HDD or system board may be the reason of a HDD fault. Either of these two components
may be damaged. To determine if the comput er’s HDD is functioning properly, perform the