Hi Vocamper,
Welcome to Sony Community!
What happened when you tried to instructions? If you didn't see anything on the screen when you pointed the flashlight or using a second monitor didn't work then aservice is required to fix it.
By the way, the PCG61315L is the chassis name of the laptop, you can look for the exact model at the lower left side of the monitor (VGN, VPC) .
Regards,
Jen
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