hello i have an acer nitro 5 515-51 no power, i have find a short in pq303 and pq304 , i have put 19V in pr304 and i don't find any cc but no power too. before chance pq303 and pq304 i need to know if other part is dead
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Re: acer nitro 5 515-51 no power
Can you post the schematic for this logic board ? I did find 515-52 schematic in my sub but the part references are not the same.
If the above are the first 2 mosfets that mate with the DCIN then remove all power. meter in resistance mode.
Using this resistance mode, check if the mosfets are defective or not.
Measure the resistance between:
source (1-2-3) & drain (5-6-7-8)
source (1-2-3) & gate (4)
gate (4) & drain (5-6-7-8)
If you see 'OL' = over limit - then increase the resistance scale to the next higher setting on your meter and measure again.
If you see a low resistance reading, the mosfet is defective and needs to be replaced.
Repeat the test with the next mosfet.
Post the readings. -
Re: acer nitro 5 515-51 no power
It's the same schematic as the Acer Aspire A715-71.Comment
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Re: acer nitro 5 515-51 no power
Well noted. Now see the same mosfet references.
Post the resistance values of the first 2 mosfets.Comment
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Re: acer nitro 5 515-51 no power
i have test it and i have find the two mosfet is deadComment
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Re: acer nitro 5 515-51 no power
shortage is remove but no power.Comment
Comment