Hello friends, hope everyone is safe and healthy in this pandemic.
So I have this Dell 3521 ( LA-9104P ) which has this strange issue of short circuit coming even after replacing the failed component,
THe short always happens on the 1.5V line and everytime it shorts a different component on the same line including the second mosfet.
So I first replaced the IC on PU300 (RT8207)
First it instance ( PQ101, PQ300, CD39)
Replaced both mosfet and removed the capacitor..
Second instance ( PQ101, PQ300, CD14)
Replaced both mosfet and removed the capacitor..
Third instance ( PQ101, PQ300, PC308)
Replaced both mosfet and removed the capacitor..
And now we have this ( PQ101, PQ300, QC3) as shorted.
Please advise how to find the real cuplrit.
Schematic attached for reference .Thanks
So I have this Dell 3521 ( LA-9104P ) which has this strange issue of short circuit coming even after replacing the failed component,
THe short always happens on the 1.5V line and everytime it shorts a different component on the same line including the second mosfet.
So I first replaced the IC on PU300 (RT8207)
First it instance ( PQ101, PQ300, CD39)
Replaced both mosfet and removed the capacitor..
Second instance ( PQ101, PQ300, CD14)
Replaced both mosfet and removed the capacitor..
Third instance ( PQ101, PQ300, PC308)
Replaced both mosfet and removed the capacitor..
And now we have this ( PQ101, PQ300, QC3) as shorted.
Please advise how to find the real cuplrit.
Schematic attached for reference .Thanks
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