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Notebook LCD Invertor, Backlight or Motherboard

By Dawid Booysen ·
I am Diagnosing a Lenovo T510 Notebook. The LCD stays off. External Monitor Working. I used a LCD with working Backlight and inverter but the LCD also stayed off. I just want to confirm if this would be a Systemboard fault.

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All Answers

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Well if it is the same Model LCD

by OH Smeg In reply to Notebook LCD Invertor, Ba ...

The only other possibilities are the Ribbon Connector or the M'Board.

However if the screen that you used was not the correct Model for this NB then it's quite possible that the Power & Signal Connections are different and it's not going to work with that particular M'Board.

Col

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Reponse To Answer

by Dawid Booysen In reply to Well if it is the same Mo ...

The screen I used comes from another T510 and I used its ribbon cable.

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Of course reset the bios and make sure

by robo_dev In reply to Notebook LCD Invertor, Ba ...

the video is not switched to external display only,,,

Since the inverter and video signals are two separate connections and circuits, it seems odd to lose BOTH. Try shining a very bright light at the screen to see if there is video...it can be nearly impossible to see otherwise.

Since the inverter uses a lot of current, I would bet some component on the motherboard fried so there is no backlight, but the video is working but cannot be seen without backlight.

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Reponse To Answer

by Dawid Booysen In reply to Of course reset the bios ...

Tried your suggestion and video is working but no backlight on both screens. Will replace the motherboard

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Thanx for help

by Dawid Booysen In reply to Notebook LCD Invertor, Ba ...

Tried your suggestion and video is working but no backlight on both screens. Will replace the motherboard

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