What is U2 ic?

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Philips Sonicare DiamondClean

Model: HX9300 Series The Philps Sonicare DiamondClean Series can be identified by its model family number: HX9300. All HX93xx models are the same toothbrush. The third and fourth number determines the contents of the box. The numbers after the slash (/) determine the color of the handle.

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Kevin @kismayas

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发帖于: 2019年8月22日

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What is U2 ic?

The fuse F1 on my brush gets blown when I turn it on. When replaced, I can charge the brush, all LED come on and U2 IC gets super hot. I assume this one drains a lot off current, tripping the fuse. I can’t find any information on what the IC is. On my toothbrush that IC has IU2FJ on it, another has IU2GG on it. I was looking for a 6 pin TSOP IU2 IC, but can’t find anything. I assume is some kind of power management IC.

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Did you solve this problem? I'm having the same problem.

由 Caner Kırnak 完成的 2019年8月27日

You’re looking for an IC called MP9361DJ. I found it here: https://www.eevblog.com/forum/beginners/...

由 Jeffrey Galles 完成的 2020年10月20日

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You’re looking for an IC called MP9361DJ. I found it here: https://www.eevblog.com/forum/beginners/... — Jeffrey Galles

jayeff @jayeff 声誉积分: 448.1千 11 366 1.4千 · Answer 1 · 2019-08-22T06:18:03-07:00

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jayeff @jayeff

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Hi @kismayas ,

If you can’t find the compatible replacement component here’s an option to consider if your toothbrush is either of the two models listed.

The following links may also provide some information that may be helpful regarding repairs and other parts etc, if the need arises in the future.

link1

link2

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Hi jayeff,

I was considering a new motherboard for a short while, but now it became a need to fix it and find out what has failed. Thanks for the links anyways :)

由 Kevin 完成的 2019年8月29日

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edigitcom @edigitcom 声誉积分: 311 6 4 1 · Answer 2 · 2019-08-22T04:29:08-07:00

edigitcom @edigitcom

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To be honest with you need to get the schematic of it to get its part number

You would be hoping that you get it from the IC on top but it seems that not all of it is there

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This is you man

6-pin patch chip IU2FD IU2FE IU2FF IU2FH IU2FI IU2FJ IU2FK

https://sgshop.com.my/taobao/tao-bao/det...

由 edigitcom 完成的 2019年8月27日

Hi Jerry,

I found that but that doesn’t explain what the chip does. And is most likely pulled from another PCB. I bought couple motherboards for cheap of eBay, and pulled the chip from that, the heat is gone, but the fuse is still blowing for me.

Thanks anyway for a try. I’ll be trying to fix this motherboard just for the sake of finding out what has failed.

由 Kevin 完成的 2019年8月29日

Hi Kevin, I have exactly your issue, that IC gets hot, fuse blows!

Any chance you came share if you solved this matter?

Thanks so much

由 Mohamad Abd El Motagaly 完成的 2022年10月22日

Yea I'm wondering also if you fixed it Kevin?

由 Karl Morrison 完成的 2023年1月9日

@Karl Morrison doesn't look like there is much activity going on with this. How about you give us more information about your toothbrush? That way we can at least try and get you some more personal assistance.

由 oldturkey03 完成的 2023年1月9日

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