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게시글: "Packard Bell EasyNote LK (VAB70) - blue LED but not...
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Packard Bell EasyNote LK (VAB70) - blue LED but not display

Hello, I have a Packard Bell EasyNote LK (VAB70) laptop that is not booting.

It does charge the battery (red LED); when I press the power button there is a blue LED, the DVD drive moves, after a while the fan is spinning but that's it.

I tried a few things:
- reseat the screen connectors (both behind it and on the motherboard)
- remove the DVD drive, HDD, wifi card, coin battery
- reorder the RAM sticks - both work fine on another laptop and checked with Memtest86+
- connect an external monitor (HDMI and VGA), with and without the LCD panel connected
- shine a light in case the backlight was dead

I don't have its history; the motherboard does not seem to have water damage, what else could I try?

Thanks


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Hi @misscat

Here's the schematic for the motherboard that may help.

Go to p.58 to see where you can check if all the voltage supplies on the motherboard are OK.

Other than that you may need to get a compatible laptop diagnostic analyzer POST test card (examples only) that you can plug into the laptop's HDD port or WiFi card port (if there is one) to see what errors are seen on startup to know what the problem may be.