730CDT
2-31
2.9
CD-ROM Drive Troubleshooting
This section describes how to determine if the computer’s internal CD-ROM drive is func-
tioning properly. Perform the steps below starting with Procedure 1, continuing with the
other procedures as required.
Procedure 1:
CD Cleaning Check
Procedure 2:
Diagnostic Test Program Execution Check
Procedure 3:
Connector Check and Replacement Check
Procedure 1
CD Cleaning Check
1.
Turn off the power.
2.
Open the CD drawer 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 CD-ROM drive still does not function properly after cleaning, go to Proce-
dure 2.
Procedure 2
Diagnostic Test Program Execution Check
The CD-ROM drive Diagnostic Test program is stored on the computer's Diagnostics Disk.
Insert a test CD (Toshiba-EMI Test Disc TDY-03) into the CD-ROM drive. Insert the Diag-
nostics disk into the computer’s floppy disk drive, turn on the computer, and run the test.
Refer to
Chapter 3
,
Tests and Diagnostics
, for more information about the diagnostics test
procedures.
If any other errors occur while executing the CD-ROM drive diagnostics test, go to
Procedure 3.
Procedure 3
Connector Check and Replacement Check
The CD-ROM drive is connected to the system board and the Flexible Cable by the CD-
ROM drive cable. This cable may be disconnected from the system board or the Flexible
Cable may be damaged. Disassemble the computer following the steps described in
Chapter
4
,
Replacement Procedures
and perform the following checks:
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