Hi,
I'm a begginer still at repairing motherboards in laptops, but I'm willing to learn.
Its the second time I got a laptop that doesnt draw any power. For this laptop Lenovo Y510p VIQY1 NM-A032: No visual damage, no liquid damage, just doesnt turn on. No shorts on all chokes. Voltage is coming in 20V, then after second power IC after VIN (PQ302) it goes down, to 8V. I have schematics, boardview, multimeter, own regulated power supply, soldering iron and hot air station, and some free time.
Quick question nr. 1: does the B+ Voltage rail, should have any voltage without the battery? Its the same rail for battery charging?
I'm a begginer still at repairing motherboards in laptops, but I'm willing to learn.
Its the second time I got a laptop that doesnt draw any power. For this laptop Lenovo Y510p VIQY1 NM-A032: No visual damage, no liquid damage, just doesnt turn on. No shorts on all chokes. Voltage is coming in 20V, then after second power IC after VIN (PQ302) it goes down, to 8V. I have schematics, boardview, multimeter, own regulated power supply, soldering iron and hot air station, and some free time.
Quick question nr. 1: does the B+ Voltage rail, should have any voltage without the battery? Its the same rail for battery charging?
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