Hardware Nintendo Switch "lost" it's touch!

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SolidSnakeUk89

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Hello !

Got an interesting one here.. I have a NS with motherboard HAC-CPU-20 that works perfectly just no touch, I tried testing different card reader modules and I tried in 3 different cases (to check the digitazer ) and doesn't work on any of them.

I checked the test point right on top of the "lego type" connector used to connect the card reader/digitazer module to the mobo and I am not getting any voltage there.. also the 4th pad of the little card reader module and Im also getting zero voltage there, with another known good Switch, I should be getting 1.8v across those 4 pads when the screen is light up and with chip/touch screen interface board plugged in

2lPhypH




Im thinking the suspect may be this GCBRG HAC STD chip but I checked the balls with a microscope and I dont see anything strange...

anybody suffered something similar??
any ideas or any points where I should probe to test voltage?
Im kidn of curious to understand how that voltage gets there but is quite tricky to trace!
 

AsideX

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Hello !

Got an interesting one here.. I have a NS with motherboard HAC-CPU-20 that works perfectly just no touch, I tried testing different card reader modules and I tried in 3 different cases (to check the digitazer ) and doesn't work on any of them.

I checked the test point right on top of the "lego type" connector used to connect the card reader/digitazer module to the mobo and I am not getting any voltage there.. also the 4th pad of the little card reader module and Im also getting zero voltage there, with another known good Switch, I should be getting 1.8v across those 4 pads when the screen is light up and with chip/touch screen interface board plugged in

2lPhypH




Im thinking the suspect may be this GCBRG HAC STD chip but I checked the balls with a microscope and I dont see anything strange...

anybody suffered something similar??
any ideas or any points where I should probe to test voltage?
Im kidn of curious to understand how that voltage gets there but is quite tricky to trace!


Hello.

I have a very similar problem! Have you found a solution?
 

lpoolm

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Sorry to bump a very old thread, but I have the exact same issue, I have been trying to find out what the b1633 chip is /does.
I am tempted to take of and swap with another?
 
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