Toshiba A105 S4064 Maintenance Manual - Page 125

3.7 Storage 3 Diagnostic Programs Check the CDROM controller's status. 2. Data Transfer Rate Check the data transfer rate of the ODD drive. It will read data from the ODD disc and calculate the data transfer rate. This test needs a data CD. 3. Data CD Butterfly Seek Check the seek function of the ODD drive. It will perform a serial of seeking operations. First, locate the minimum LBA address, then the maximum, the subminimum, the sub- maximum and meet at center point. This test needs a data CD. 4. Data CD Random Seek Check the random seek function of ODD drive. Random access will reflect the performance of the heads' random movement and seek. It tests for 1000 times. 5. Data CD Sequence Seek Check the sequential seek function of ODD drive. Perform location test to CDRW under LBA mode with the location address increasing in sequence. 6. Tray Eject Test Check the eject function of the ODD. It will eject the ODD and ask the user to confirm if the operation succeeds. Satellite A100/A105 / TECRA A7 Maintenance Manual 49