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Old 02-16-2020, 12:00 PM   #1
hazim
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Default lenov g50-30 power problem

hi

lenovo g50-30 ACLU9-ACLU0NM-A311 MB

ther is a 3 fet short on mb
PQ 303 P-CH
PQ 311 N-CH
PQ 312 N-CH

AND ANOTHER ONE PQ 302 VERY HOT TCP8127 what's the equivalent for tcp8127 fet

finally charger ic BQ737 what's the equivalent if it fault ?

thanks

Last edited by SMDFlea; 02-16-2020 at 03:44 PM.. Reason: bad formatting
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Old 02-16-2020, 11:57 PM   #2
mcplslg123
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Default Re: lenov g50-30 power problem

TCP8127 is a P channel fet and you can replace it with 4407/4835/4409 or similar mosfets.
Bq737 you can replace with BQ727 or BQ07A
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Old 02-17-2020, 09:10 AM   #3
hazim
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Default Re: lenov g50-30 power problem

thank you so much i will replace
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Old 02-17-2020, 11:16 AM   #4
hazim
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Default Re: lenov g50-30 power problem

fault was in

pq 311 n
pq 312 n
pq 302 p

i replace all and laptop power up ok

thanks alot
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Old 04-08-2020, 04:43 PM   #5
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Default Re: lenov g50-30 power problem

Nice mate..
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Old 04-09-2020, 02:02 PM   #6
classicandy
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Post Re: lenov g50-30 power problem

Quote:
Originally Posted by mcplslg123 View Post
TCP8127 is a P channel fet and you can replace it with 4407/4835/4409 or similar mosfets.
Bq737 you can replace with BQ727 or BQ07A
I know this post is kinda old.
Replacing BQ737 with BQ727 will make charging slow. BQ727 does not support Boost Charge (mode). HPA02224 is a better alternative.
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