Question about Sony VAIO FW Series Notebook PC VGN-FW290JVH
Model number PCG-3B4L
There maybe a fuse on the motherboard in the power supply circuit.
That would be a quick check to save putting in a new motherboard.
If you're not a technician, I would not attempt.
Board level repair or replacement would be the only solution.
You could also find the exact model Sony WAIO and swap the HDD.
Posted on Nov 25, 2013
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Posted on Jan 02, 2017
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