Question about Televison & Video
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Posted on Jan 02, 2017
Toggle the display by pressing Fn+F8 (Function key+F8). Wait a few seconds between attempts in order to allow the system to switch display ports.
Attach an external display to the system and power it on. Once you think it has had time to boot, toggle the display as described above.
Do Either displays work at any point during either test?
If no, the display chipset on the system board has failed & the system board would need to be replaced. If only the external display functions then you have a failed LCD, or the cable/connectors between the LCD and the system board are suspect.
Posted on May 27, 2009
Checked all connection given properly checked your cable connection some time cable connection not proper than also its display no signal
Posted on Jan 23, 2010
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