need help from the experts, I'm fixing a laptop Acer e5-411 mobo is da0zqmmb6f0 rev:f that is dead. anyone out there has an schematic diagram,that would be a big help thanks
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dead acer e5-411
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Re: dead acer e5-411
Originally posted by mangtomas View PostI think its not bios because i cant even switch on the laptop so i think this might be a power problem
now check every component and coils for short to GROUND.
Inject voltage there if you find any. check and see if it gets hot.
If you find that HM Chipset gets hot , your done BGA work required.
start with bios and check with oscilloscopeJust cook it! It's already broken.
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Re: dead acer e5-411
Originally posted by dj_ricoh View Postdude BIOS makes the notebook dead. EVEN charging LED.
now check every component and coils for short to GROUND.
Inject voltage there if you find any. check and see if it gets hot.
If you find that HM Chipset gets hot , your done BGA work required.
start with bios and check with oscilloscope
first search sieguntur repair on youtube videos for better understanding of mobo architecture then you can start repairing
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Re: dead acer e5-411
I think this is not a bios problem because there is no 19v in PQ26 which is n-channel power mosfet, there should be 19v in there I think but I only got 1.3v. If I don't have 19v in mosfet of 3valw and 5valw it will not generate 5valw and 3valw and 3valw is the supply voltage of bios for it to function so that's why I think its not a bios problem.
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Re: Da0zqmmb6e0 rev:e
Use Quanta ZHK as refer :http://www.s-manuals.com/motherboard/quanta_zhk
the caps value are:
- 0.1U/25V_4 (0402)
- 2200P/50V_4 (0402)
How could be?
Quanta ZHK and ZQM using same IC NB671L
you'll find it at your donor board.Last edited by meritosari; 09-22-2016, 01:03 AM.
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