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モデル番号:HX9300シリーズ フィリップス製Sonicareダイヤモンドクリーンシリーズはモデル番号HX9300で識別できます。 全てのHX93xxモデルは同じ歯ブラシです。3番目と4番目の数はボックスの梱包物によって異なります。

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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.

さんによる

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

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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 :)

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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...

さんによる

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.

さんによる

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

さんによる

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

さんによる

@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.

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

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Kevin さん、ありがとうございました!
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