LED 4 - Indicates that the computer and the LCD display panel are communicating. This LED will be ON when the computer is turned on and video signal is being generated. If the LED is ON and there is no image on the LCD display panel, the LCD display panel or inverter might be installed incorrectly or need replacement.
Hold a flashlight up to the display at an angle and see if you can discern the desktop, after you have tried to boot from a system.
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If you see it we can go for the inverter.
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If you see it we can go for the inverter. Cheap fix.
LED 4 - Indicates that the computer and the LCD display panel are communicating. This LED will be ON when the computer is turned on and video signal is being generated. If the LED is ON and there is no image on the LCD display panel, the LCD display panel or inverter might be installed incorrectly or need replacement.
-
Hold a flashlight up to the display ay an angle and see if you can discern the desktop, after you have tried to boot from a system.
+
Hold a flashlight up to the display at an angle and see if you can discern the desktop, after you have tried to boot from a system.
LED 4 - Indicates that the computer and the LCD display panel are communicating. This LED will be ON when the computer is turned on and video signal is being generated. If the LED is ON and there is no image on the LCD display panel, the LCD display panel or inverter might be installed incorrectly or need replacement.
Hold a flashlight up to the display ay an angle and see if you can discern the desktop, after you have tried to boot from a system.