Samsung NP-R522 power-on problems

Please write all information:
1.Model from case
2.Board model/number
3.Describe problem clearly
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Please write all information:
1.Model from case
2.Board model/number
3.Describe problem clearly
4.What you did to solve problem
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andromedax
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Joined: Thu Jul 20, 2017 4:24 pm

Samsung NP-R522 power-on problems

Post by andromedax »

Samsung NP-R522 CANNES/BONN CANNES-EXT GFX:AMD

Motherboard powers-on but shutdown almost instant.

If I heat capacitor ec10, (220uF 2.5v) (P1.8V_AUX) then it works.

Capacitor has been replaced with one from a donor board, but problem remains.

Any hint to repair it?
andromedax
Member
Member
Posts: 15
Joined: Thu Jul 20, 2017 4:24 pm

Re: Samsung NP-R522 power-on problems

Post by andromedax »

Problem is solved.
Capacitor EC3 1000uF Nec tokin was dead. Replaced by 4x330uF tantalum capacitors and problem solved.

I have changed many nec tokin capacitors, but none of them fails with battery only powered.
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