Hardware Switch no charging but can work with fully battery

khalkedon

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Hi people.

I have replaced the broken Type-C USB port but after that no any charging indicator. When I check with USB tester, it shows 0 amper.

I pluged a fully good battery to Nintendo Switch, it works perfectly. I can navigate all the manu and play games. But When I try to charge no any response, I can't see any charging logo. Even I replaced the BQ24193 charging IC but no any result.

I need your helps. Thank you in advance.
 

SheriffBuck

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OK.

Can you check if anything happens when you try both orientations on the USB C connector?

Check that you are getting charger voltage VB on pin 9 if the M92 and similar output VEX to the BQ on pin 28 of the M92.

Check internal power selector status VCCIN on pin 5 of M92, and VSVR system 3.3v rail on pin 6.

Measure VSYS pin 15/16 on BQ.

Next step is to check the CC lines which run via an ESD protection device on the underside of the board near the USB-C. These can get damaged causing the lines to short to ground. Buzz then through to the M92. You will probably need a breakout board on the USB C to test this reliably. There are test pads on the underside too. Again search the forum for a picture I posted. If you have continuity problems, this IC can be removed to aid diagnosis.

Let me know how you get on with the above.

Sheriff





Sent from my SM-G975F using Tapatalk
 
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khalkedon

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OK.

Can you check if anything happens when you try both orientations on the USB C connector?

Check that you are getting charger voltage VB on pin 9 if the M92 and similar output VEX to the BQ on pin 28 of the M92.

Check internal power selector status VCCIN on pin 5 of M92, and VSVR system 3.3v rail on pin 6.

Measure VSYS pin 15/16 on BQ.

Next step is to check the CC lines which run via an ESD protection device on the underside of the board near the USB-C. These can get damaged causing the lines to short to ground. Buzz then through to the M92. You will probably need a breakout board on the USB C to test this reliably. There are test pads on the underside too. Again search the forum for a picture I posted. If you have continuity problems, this IC can be removed to aid diagnosis.

Let me know how you get on with the above.

Sheriff





Sent from my SM-G975F using Tapatalk

Thank you to your helps. I solved the problem. The source of the problem is M92T36 chip, I replaced it and happy ending :)
Thanks a lots friend.
 
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