JHL90 Service Manual
This section describes how to determine if the
drive or CD-RW/DVD-ROM drive is functioni
computer’s internal DVD-ROM
ng properly. Figure 6-10 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
11.1 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.
11.2 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.
11.3 Procedure 3 Software check
Ensure that the appropriate driver has been installed on the computer for the
CD/DVD drive.
11.4 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.
11.5 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. Re checks:
heck 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.
placement Procedures and perform the following
C
6-26