MAINTENANCE LAPTOP & REPAIR 4

Toshiba Personal Computer

Satellite L300/L305 Satellite Pro L300 EQUIUM L300 SATEGO L300

(PSLB0x/PSLB1x) (PSLB2x/PSLB3x)

 

Procedure 3  Format Check

The 2.5-inch HDD is formatted using the low-level format program and the FREE-DOS

FORMAT program.  Using these programs, follow the steps below to format the HDD.

Check 1  Enter FORMAT C:/S/U to format the HDD and transfer system files.  If

the following message appears on the display, the HDD has been

formatted.

Format complete

If you cannot format the HDD using the test program, go to Procedure 4. Procedure 4  Test Program Check Run the HDD test program stored on the maintenance test program disk for all test items. See Chapter 3 for details on how to use the test program. If an error is detected during the HDD test, an error code and status will be displayed.  The error codes and their status names are listed in Table 2-1.  If an error code is not generated and the problem still exists, go to Procedure 5. Table 2- 1 HDD Error Code and Status Code Status 1.Get Parameter Fail ! 2.Read Old Data Error 3.Write Pattern Error 4.Read Back Data Error 5.Data Compare Error 6.Restore Data Error 7.Read Verify Error 9.Seek Error 10.Disk Controller Self Test Failed 11.Disk Controller Test unexpected interrupt Failed 12.Disk Controller action Test Failed 13.Disk dos not support SMART 14.Disk read attribute threshold error 15.Disk read attribute value error 16.Disk SMART attribute value error Procedure 5  Connector Check and Replacement Check The HDD or system board may be faulty.  Disassemble the computer following the steps described in Chapter 4 and  perform the following checks: Check 1    Make sure the following connectors have been firmly connected to the HDD, system board and CPU. HDD System board CPU If any connector is loose or off, reconnect it firmly and return to Procedure 1. If there is still an error, perform Check 2. Check 2  The HDD may be damaged. Replace it with a new one following the disassembling instructions in Chapter 4.  If the problem persists, perform Check 3. Check 3  The System board may be damaged.  Replace it with a new one following the disassembling instructions in Chapter 4.  If the problem persists, perform Check 4. Check 4  The CPU may be damaged.  Replace it with a new one following the disassembling instructions in Chapter 4. Keyboard To check if the computer’s keyboard 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 Keyboard test available as part of the maintenance test program.  See Chapter 3 for information on how to perform the test. If an error is detected in the test, go to Procedure 2.  If no error is detected, the keyboard itself is normal. Procedure 2  Connector Check and Replacement Check The keyboard or system board may be disconnected or faulty.  Disassemble the computer following the steps described in Chapter 4 and perform the following checks: Check 1  Make sure the keyboard cable has been firmly connected to the system board. Keyboard System board CPU If the cable is loose or off, reconnect it firmly and return to Procedure 1. If there is still an error, perform Check 2. Check 2  The keyboard may be faulty.  Replace it with a new one following the instructions in Chapter 4.  If the problem persists, perform Check 3. Check 3  The System board may be faulty.  Replace it with a new one following the instructions in Chapter 4.  If the keyboard is still not functioning properly, perform Check 4. Check 4  The memory may be defective. Replace the memory module with a new one following the steps described in Chapter 4. If the problem persists, perform Check 5. Check 5  The CPU may be faulty. Disassemble the computer following the steps described in Chapter 4 and replace the CPU with a new one. Display To check if the computer’s display is defective or malfunctioning, follow the troubleshooting procedures below as instructed. Procedure 1  External Monitor Check Procedure 2  Test Program Check Procedure 3  Connector Check and Replacement Check Procedure 1  External Monitor Check Connect an external monitor to the computer's external monitor port, then boot the computer. The computer automatically detects the external monitor even if resume mode is enabled. If the external monitor works correctly, the internal LCD, LCD/FL cable, or FL may be faulty.  Go to Procedure 3. If the external monitor appears to have the same problem as the internal monitor, the system board may be faulty.  Go to Procedure 2. Procedure 2  Test Program Check Insert the diagnostics bootable CD in the computer's CD ROM, turn on the computer and run the test.  See Chapter 3 for information on how to perform the test. If an error is detected in the test, go to Procedure 3.  If no error is detected, the display itself is normal. Procedure 3  Connector Check and Replacement Check The display unit has an LCD module, Fluorescent lamp (FL), panel close switch and FL inverter board.  Any of the components or their connections may be defective.  Disassemble the computer following the steps described in Chapter 4, then perform the following checks: (1)    If the FL does not light, perform Check 1. (2)    If characters or graphics are not displayed normally, perform Check 5. (3)    If the FL remains lit when the display is closed, the panel close switch may be defective.  Perform Check 8. Check 1  Make sure the following cables have been firmly connected to the system board and FL inverter board. FL FL inverter board System board CPU HV cable LCD/FL cable If any of the cables is loose or off, reconnect it firmly and return to Procedure 3.  If there is still an error, perform Check 2. Check 2  The LCD/FL cable may be faulty. Replace it with a new one and return to Procedure 3.  If there is still an error, perform Check 3. Check 3  The FL may be faulty.  Replace it with a new one and return to Procedure 3.  If there is still an error, perform Check 4. Check 4  The FL inverter board may be faulty.  Replace it with a new one and return to Procedure 3.  If there is still an error, perform Check 5. Check 5  Make sure the LCD/FL cable has been firmly connected to the system board and LCD module. FL inverter board System board CPU LCD/FL cable If the cable is loose or off, reconnect it firmly and return to Procedure 3. If there is still an error, perform Check 6. Check 6  The LCD/FL inverter cable may be faulty.  Replace it with a new one and return to Procedure 3.  If there is still an error, perform Check 7. Check 7  The LCD module may be faulty.  Replace it with a new one and return to Procedure 3.  If there is still an error, perform Check 8. Check 8  The System board may be faulty.  Replace it with a new one.  If there is still an error, perform Check 9. Check 9  The CPU may be faulty.  Replace it with a new one following the instructions in Chapter 4. Check 10  The memory may be defective. Replace the memory module with a new one following the steps described in Chapter 4. If the problem persists, perform Check 10. ODD (Optical Disk Drive) To check if the internal ODD drive is defective or malfunctioning, follow the troubleshooting procedures below as instructed. Procedure 1  ODD Cleaning Check Procedure 2  Test Program Check Procedure 3  Connector Check and Replacement Check Procedure 1  ODD Cleaning Check 1.  Turn off the power to the computer. 2.  Open the ODD tray by inserting a slender object such as a straightened paper clip into the eject hole.  The object must be long enough to activate the eject mechanism. 3.  Clean the laser pickup lens with a lens cleaner.  Apply the cleaner to a cloth and wipe the lens. 4.  If the ODD drive still does not function properly after cleaning, go to Procedure 2. Procedure 2  Test Program Check Execute the ODD drive test program available as part of the maintenance test program. Insert the diagnostics CD in the computer's CD, turn on the computer and run the test. Then insert a test ODD (Toshiba-EMI DVD-ROM  TEST DISK TSD-1) into the ODD drive. See Chapter 3 for information on how to perform the test. If any error is detected by the test, go to Procedure 3. Procedure 3  Connector Check and Replacement Check The ODD drive is connected to the system board by the connector.  The connector may be disconnected from the system board or faulty.  Disassemble the computer following the steps described in Chapter 4 and  perform the following checks: Check 1  Make sure the following connector has been firmly connected to the ODD drive and the system board. ODD System board CPU Drive Attachment case Connector If the connector is loose or off, reconnect it firmly and return to Procedure 2. If there is still an error, perform Check 2. Check 2  The connector may be faulty.  Replace the connector with a new one following the steps in Chapter 4.  If the ODD drive is still not functioning properly, perform Check 3.   Check 3  The ODD drive may be faulty.  Replace the ODD drive with a new on e following the steps in Chapter 4.  If the ODD drive is still not functioning properly, perform Check 4. Check 4  The system board may be faulty.  Replace it with new one following the instructions in Chapter 4.  If the ODD drive is still not functioning properly, perform Check 5. Check 5  The memory may be defective. Replace the memory module with a new one following the steps described in Chapter 4. If the problem persists , perform Check 6. Check 6  The memory may be defective. Replace the memory module with a new one following the steps described in Chapter 4. If the problem persists, perform Check 3.   LAN To check if the computer’s LAN 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 LAN check program available as part of the maintenance test program.  This program will check the LAN.  Insert the Bootable CD into the CD.  Turn on the computer and run the check program.  See Chapter 3 for information on how to perform the check. If any abnormal  is detected by the check, go to Procedure 2 Procedure 2  Connector Check and Replacement Check The LAN connector (RJ45) is mounted on the system board.  If the LAN malfunctions, the system board or CPU might be faulty. Disassemble the computer following the steps described in Chapter 4 and perform the following checks: Check 1  The system board may be faulty.  Replace it with a new one following the instructions in Chapter 4.  If the LAN is still not functioning properly, perform Check 2. Check 2  The memory may be defective. Replace the memory module with a new one following the steps described in Chapter 4. If the problem persists, perform Check 3. Check 3  The CPU may be faulty. Disassemble the computer following the steps described in Chapter 4 and replace the CPU with a new one.   Audio  Test To check if the computer’s Speaker 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 Audio test available as part of the maintenance test program.  See Chapter 3 for information on how to perform the test. If an error is detected in the test, go to Procedure 2.  If no error is detected, the Audio itself is normal. Procedure 2  Connector Check and Replacement Check The Audio or system board may be disconnected or faulty.  Disassemble the computer following the steps described in Chapter 4 and perform the following checks: Check 1 Make sure the Speaker cable has been firmly connected to the system board. Speaker System board CPU If the cable is loose or off, reconnect it firmly and return to Procedure 1.  If there is still an error, perform Check 2 . Check 2 The Speaker may be faulty.  Replace it with a new one following the instructions in Chapter 4.  If the problem persists, perform Check 3. Check 3 The System board may be faulty.  Replace it with a new one following the instructions in Chapter 4.  If the Audio is still not functioning properly, perform Check 4. Check 4 The memory may be defective. Replace the memory module with a new one following the steps described in Chapter 4. If the problem persists, perform Check 5. Check 5 The CPU may be faulty. Disassemble the computer following the steps described in Chapter 4 and replace the CPU with a new one. Cooling  Module 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, turn on the computer and run the test.  See Chapter 3 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 Chapter 4 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 free of foreign matter.     Cooling module System board CPU If the connector is disconnected, connect it firmly to the system board and return to Procedure 1.  If the tape is stuck to any part of the fan, stick it back to the specified point.  If a foreign matter is found in the fan, remove it and then return to Procedure 1.  If there is still an error, perform Check 2. Check 2  The cooling module may be faulty.  Replace it with a new one following the steps in Chapter 4.  If the cooling module is still not functioning properly, perform Check 3. Check 3  The memory may be defective. Replace the memory module with a new one following the steps described in Chapter 4. If the problem persists , perform Check 4. Check 4  The CPU may be faulty. Disassemble the computer following the steps described in Chapter 4 and replace the CPU with a new one.