2 Troubleshooting Procedures 2.10 Optical Disk Drive Troubleshooting
2.10 Optical Disk Drive Troubleshooting
To check if optical disk drive is malfunctioning or not, follow the troubleshooting procedures
below as instructed.
Procedure 1: Diagnostic Test Program Execution Check
Procedure 2: Connector Check and Replacement Check
Procedure 1 Diagnostic Test Program Execution Check
Execute the CD-ROM/DVD-ROM Test in the Diagnostic Program. Refer to Chapter 3, Tests
and Diagnostics for more information on how to perform the test program.
Prepare the tools before the test.
If any error is detected by the test, go to Procedure 2.
Procedure 2 Connector Check and Replacement Check
The connection may be defective among optical disk drive, ODD relay board, ODD flexible
cable and system board. Otherwise, they may be faulty. Disassemble the computer following
the steps described in Chapter 4 and perform the following checks:
Check 1 Make sure optical disk drive is firmly connected to the connector on system board.
Optical
disk drive
50-pin
CN1820
<ODD relay board>
CN9680
<System board>
CN1810
ODD flexible cable
If the connection is loose, reconnect it firmly and return to Procedure 2. If the
problem still occurs, perform Check 2.
Check 2 Optical disk drive may be faulty. Replace it with a new one following the steps in
Chapter 4. If the problem still occurs, perform Check 3.
Check 3 ODD relay board may be faulty. Replace it with a new one following the steps in
Chapter 4. If the problem still occurs, perform Check 4.
QOSMIO G20 Maintenance Manual (960-511) [CONFIDENTIAL]
2-53
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