Rep: 11
2
1
I can see the Diagnostic Leds, and
Number 1 : It's On when connect the AC Cable
When I push the start button the Leds 2 and 3 turn ON
No 2: ON
No 3: ON
But the LED 4 do not. Still OFF. And the Fans not working, some advice about it?
The SMC was reset and nothing happens.
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Rep: 116.3mil
66
68
359
previous post from Mayer
Remember to return and mark accepted the answer that best solves your problem.
Good luck,
N
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good advice in that post +
+ excellent source
Rep: 21
1
2
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.
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