Compal ACY25 series, Service Manual

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This section describes how to determine if the computer’s internal DVD-ROM drive or
CD-RW/DVD-ROM drive is functioning properly. Figure 6-11 outlines the process. Perform
the steps below starting with Procedure 1 and continue with the other procedures as
required.
Procedure 1: Audio CD test
Procedure 2: Drive cleaning check
Procedure 3: Software check
Procedure 4: Diagnostic test
Procedure 5: Connection and replacement check
Procedure 1 Audio CD check
First, insert an audio CD into the CD/DVD drive. If it works, the problem is not with the drive.
Go to Procedure 3. If the audio CD does not work, go to Procedure 2. If the CD/DVD LED on
the front panel does not light when the disc is played and the drive gives no response, go
straight to Procedure 3.
Procedure 2 Drive cleaning check
Insert a CD/DVD drive-cleaning disk into the drive clean according to the drive-cleaning
product instructions. If the problem persists, go to Procedure 3.
Procedure 3 Software check
Ensure that the appropriate driver has been installed on the computer for the CD/DVD drive.
Procedure 4 Diagnostic test
The CD-ROM/DVD-ROM test program stored in the Diagnostics Disk will test the drive’s
ability to play an audio CD, as well as the functions of the CD control buttons.
If any errors occur while executing the diagnostic program, go to Procedure 5.
Procedure 5 Connection check and replacement check
The DVD-ROM drive or the CD-RW/DVD-ROM drive connects to the system board. The
drive may be disconnected, or the drive or system board may be damaged. Replacement
Procedures and perform the following checks:
Check 1 Make sure the drive is firmly connected to the system board. If the connection is
good and there is still an error, go to Check 2.
Check 2 The drive or drive cable may be defective or damaged. Replacement
Procedures. If the drive is still not functioning properly, perform Check 3.
Check 3 The system board may be damaged.