I'm looking for schematic diagram for rf711 motherboard. Laptop has been dropped with charger port connected. This I think has caused reverse polarity damaging motherboard. Any help will be much appreciated
It has been with a pc repair guy...who seems very good
He has the same laptop as this but has no schematic diagram for diagnosing which parts have failed
He has said that the issues lie with charging and power and his best suggestion was a motherboard replacement.
I searched for the schematic and I have found nothing, if he has a good motherboard, it is possible to compare the voltages of the MOSFETs in the power circuit.
He has compared them and found a difference but he said without the schematics he couldn't trace for.more damage. I'm not sure what to do really as I didn't want to spend £100 on used board.
Is it possible for you to give me the number for the charging/power chip? It's a square 28 pins chip, could be U509.
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