System not working after removing the NEC/TOKIN

[rafemuhammed]

I removed the NEC/TOKIN 0E907 to replace it with 4x330uF from Toshiba L300. Unfortunately, I lost the 330uF capcitors and waiting for another shipping. Will laptop works with out NEC/TOKIN 0E907?. My laptop is now turns on but nothing is coming to LCD and feels like dead. Is this lacks of NEC/TOKIN or another issue with LCD screen. LCD was working before the removal of NEC/TOKIN.
One more doubt, Can I use normal cylinder capacitors instead of 4x330uF tantalum?

Pls help

[tomodachi]

Re: System not working after removing the NEC/TOKIN

Same happened to me last week, mine was working but not showing display, I replaced nec/tokin with 4 x 330 and result was perfect, for your case I guess your customer gotta wait for that cap, good luck !

[rafemuhammed]

Re: System not working after removing the NEC/TOKIN

Thanks for the reply...
The 33uf tantalum capacitor is rare in my place.
Can I use any other capacitor instead of 4x330uF tantalum?

Regards..

[tapasxplore]

Re: System not working after removing the NEC/TOKIN

you can use two 470uF cap for this purpose. you can use ' rs components ' to get the mention caps. website is// in.rsdelivers.com , part no 737-2832. The caps will come to your place in about 7 days any where in India.

If you have problem you can contact me at tapasxplore@gmail.com.
I have also gone through the same problem.

[masud]

Re: System not working after removing the NEC/TOKIN

s8=470mf

[guruji]

Re: System not working after removing the NEC/TOKIN

Hello
By the way u are suppose to put 3caps of 330uf as your prodalizer is 907uf so 3 cap is enough.for a prodalizer nec tokin 1e28 =1280uf u use 4caps of 330uf.incase u want orignal i have in stock the nec/tokin.

[guruji]

Re: System not working after removing the NEC/TOKIN

The 330mfd have to be 2volt rated and highest esr they only work

[spleenharvester]

Re: System not working after removing the NEC/TOKIN

I've done this 3 times now, and can tell you it will not work without NEC/Tokin - it will power up and that's as far as you'll get. Same will happen if there is a bridge between the positive and negative caps.

Also, use tantalums, don't use the "cylinder" electrolytic caps since they are of a high ESR. On my OE907 I used 4x330uF 2.5v 6mOhm ESR caps.

[rafemuhammed]

Re: System not working after removing the NEC/TOKIN

I have ordered tantalum capacitor from rscomponents(http://in.rsdelivers.com/) but after a month they are saying they dont have service station in my place to deliver the product. I decided to select tantalum instead of NEC/TOKIN is the easiness in soldering. Can anybody send tantalum capacitor to me so that I can pay you or can you pls tell other good site to order it. I only like cash on delivery for secure transaction

[alihomee]

Re: System not working after removing the NEC/TOKIN

you can get those caps from any laptop scrape motherboard if you have one.when i need to change this cap i never order on internet but only i take them from any old motherboard.

[spleenharvester]

Re: System not working after removing the NEC/TOKIN

Yup, buy something like a faulty 6735s board, they have 4x330uF on by the CPU.