Re: Asus X540N schematic or board view
this tiny mosfet sir...
ganiboy76
Member
Last Activity: 03-25-2024, 06:05 PM
Joined: 08-12-2019
Location: Udaneta city, Pangasinan
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Asus X540N schematic or board view
[COLOR="blue"]Asus X540N burnt parts need schematic or board view.. pls help. tks[/COLOR] -
Re: HP 240 G7 Remove Password
wow...
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Re: ACER D270 SHORTED Vin main Power rail
update on this post.. the pc 105 is shorted and pq38 faulty..replaced. now solved.thread closed and thanks for the schematic and board view...Leave a comment:
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Re: ACER D270 SHORTED Vin main Power rail
yeah seems like the pq38 is the culprit.. when its getting hot and i apply alcohol it cools and the 19v, appear on VA1 AND VA2 SIDE CHARGER SIDE.BEFORE PQ38..AND when its get hoter the 19v, becomes 1,5 fluctuating.....Leave a comment:
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ACER D270 SHORTED Vin main Power rail
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... -
Re: acer one d270 dead
lets check together @Romulo these capacitors and mosfets.. as they are connected to main Vin.....Leave a comment:
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Re: acer one d270 dead
there are lots of capacitors FROM 0.1 4.7 and 2200. ..connected from main power rail to ground connected from PR 133 main power rail.. usually that two capacitors besides two mosfet..as per BoardView.....Leave a comment:
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Re: acer one d270 dead
because.. PL6 is the main b+ of the charger. concentrate on all capacitors first that are connected to the main power rail.. Vin.. then mosfets...Leave a comment:
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Re: acer one d270 dead
@ romulo we have same problem now that im working on acer d270 netbook. so there no point for me to start a new thread...shorted on main power rail Vin..im starting to check capacitor that are connected directly to Vin and ground PQ38 is getting hot..Leave a comment:
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Re: New Members - please post your introductions here
good day to all , im gani from philippines..a new in board level repairs.. hoping to learn more here and contribute to this forum..thanksLeave a comment:
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