hi guys i have this acer d270 . DAOZE7MB6DO REV : D mother board. no power on lights ,no charger lights indicator.
done check.
1- remove battery. charger ok 19v
2- VA1 across PL6 fluctuating 1.5v max VA2 after PD7 fluctuating 0.5v
3- PQ38 getting hot pin 123 fluctuating 0.5 , pin 5-8 0v short to ground
4-remove PC 84,85,86 and PD8 check component ok .. read voltage while component remove ..still thesame fluctuating reading.
5-check PR 133 Vin-- remove and check PC 87,88 .same Vin shorted to ground...notice..PQ38 getting hot at 10seconds
6--checking board view.. and there are lots of capacitor 0.1, 4.7 and 2200.. connecteed to Vin-to-ground.. is there a way to isolate other stage that have Vin supply???
done check.
1- remove battery. charger ok 19v
2- VA1 across PL6 fluctuating 1.5v max VA2 after PD7 fluctuating 0.5v
3- PQ38 getting hot pin 123 fluctuating 0.5 , pin 5-8 0v short to ground
4-remove PC 84,85,86 and PD8 check component ok .. read voltage while component remove ..still thesame fluctuating reading.
5-check PR 133 Vin-- remove and check PC 87,88 .same Vin shorted to ground...notice..PQ38 getting hot at 10seconds
6--checking board view.. and there are lots of capacitor 0.1, 4.7 and 2200.. connecteed to Vin-to-ground.. is there a way to isolate other stage that have Vin supply???
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