NIGHTBLADE 20EX 7M-005EU, Manual

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Troubleshooting
A-3 A-2
System speakers do not work�
1� Check the master volume setting in the Audio Mixer�
2� If you are using an application that has its own volume control, check if the volume
is muted�
3� If you have connected an audio cable to the Headphone jack, disconnect it�
4� If the system has OSD function, please adjust the volume of OSD�
I cannot play a CD/ DVD with the DVD-ROM of the system�
1� Make sure the label of the CD/ DVD is facing up�
2� If the CD/ DVD requires software, make sure the software is well installed
according to the program instructions�
3� If a region code warning appears when you play the DVD, the problem could be
that the DVD is incompatible with the DVD-ROM in your system� The region code
is listed on the disc packaging�
4� If you see video but cannot hear audio, check the media player� Also, make sure
the speakers and the master volume setting in the Audio Mixer are not muted�
5� Check if the drivers are installed properly� Click Start > Control Panel > System >
Device Manager�
6� A dirty or scratched disc may cause the computer to hang when it is trying to read
the disc� If necessary, reboot the computer, remove the disc, and check if it is
dirty or scratched�
7� Please use DVD player software like PowerDVD or WinDVD to play DVD video�
My DVD-ROM drive tray does not open�
1� Make sure the computer is turned on�
2� Press the Eject button on the DVD-ROM drive�
3� If the Eject button does not work, open the tray by inserting a sharp, pointed object
into the hole next to the Eject button�
System monitor does not display anything�
1� Check if the system is connected to an electrical outlet and it is turned on�
2� The system may be in Standby mode� Press any key to activate the Display�