Toshiba Satellite L650 Maintenance Manual page 110

3 Diagnostic Programs
Subtest 02 ODD
The ODD test runs on IDE CDROM/DVD-ROM & CD-RW. It will check the ODD
driver's functionality and performance.
1. Controller Test
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 sub-
minimum, 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 CD-
RW 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/Satellite Pro L650/L655 Maintenance Manual
42
3.7 Storage