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#1 |
Member
Join Date: Mar 2020
City & State: auckland
My Country: New Zealand
I'm a: Knowledge Seeker
Posts: 39
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![]() I've recently started learning repairs reading YouTube etc
My question is I have a few Asus and hps that don't have any boardviews or schematics so I was wondering if there's a best sequence to follow in troubleshooing a laptop that isn't powering on. I see there's various coils on most boards and I'm sure there realitive to 3v 5v memory? Cpu? I guess I'm asking is what would one expect to find traditionaly on most motherboards and look to measure values from. Kind regards Paul |
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#2 |
Member
Join Date: Jul 2017
City & State: Bicol
My Country: Philippines
Line Voltage: 220VAC 60Hz
I'm a: Professional Tech
Posts: 23
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![]() I usually start with the main +19V (voltage rail after the 2 mosfets from DC in jack) then power button 3V pullup then the main 3V/5V regulator. HPs should have a white light in the DC in jack when plugged in without battery.
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#3 |
Member
Join Date: Mar 2020
City & State: auckland
My Country: New Zealand
I'm a: Knowledge Seeker
Posts: 39
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![]() Thankyou for your reply, is there a sequence in how they turn on to know when a power rail is missing?
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