Hardware M92T36 or BQ24193

[Agilato]

And this is the reason, just for fun check original power supply output and you would be surprised it's almost like a laptop up to 30-Watts.
Main reason why ppl. blow their switches by using regular iPhone charger...
You need PowerBank with fast charge at least, does ur support it?

 

[Pintglass]

It charges without problem in the original dock with original charger. But, if i use USB cable in any laptop, desktop or Power-Bank, stop charge with message on screen, ''unable to charge''.
View attachment 181470

Check the coil on D+ D-

 

[FXDX]

Check the coil on D+ D-

OK I'll measure tomorrow and come back with info. THX

 

[Agilato]

OK I'll measure tomorrow and come back with info. THX

"Occam's razor"
What if your switch is totally ok, do you have opportunity to check your charging devices with other switch?

 

[FXDX]

"Occam's razor"
What if your switch is totally ok, do you have opportunity to check your charging devices with other switch?

Yes Sir, i tried this with other switch and works perfectly.

 

[Agilato]

Yes Sir, i tried this with other switch and works perfectly.

You might have some Rat at the board 0.5 amps should heat something. I would use freezer spray or tried to find it on touch.

 

[FXDX]

You might have some Rat at the board 0.5 amps should heat something. I would use freezer spray or tried to find it on touch.

I searched carefully and couldn't find anything........

 

[FXDX]

Check the coil on D+ D-

I checked and it is ok....

 

[Mardare]

I can't solve the problem. In the dock it charging perfectly but on the usb C cable that neither it nor it organizes in win 7 or 10 and on the switch it appears the message that it cannot charging. I tried several cables on several laptops.......
I measured with the multimeter everywhere I was advised to measure. I didn't find anything right. The only anomaly is at the diode near the usb c port which shows me 5v on both sides although I know it has to 5v with 3v.

 

[Pintglass]

I can't solve the problem. In the dock it charging perfectly but on the usb C cable that neither it nor it organizes in win 7 or 10 and on the switch it appears the message that it cannot charging. I tried several cables on several laptops.......
I measured with the multimeter everywhere I was advised to measure. I didn't find anything right. The only anomaly is at the diode near the usb c port which shows me 5v on both sides although I know it has to 5v with 3v.

The part closest to the usb port is a fuse not a diode, voltage coming in should be the same on both sides.

 

[FXDX]

The part closest to the usb port is a fuse not a diode, voltage coming in should be the same on both sides.

Is the diode, here's the discussion....https://gbatemp.net/threads/trinket-internal-install.509633/page-16#post-8133481
Bad diode = Similar values in boths direction and i think that's my problem. Tomorrow i will try to replace it and come back as a result.

 

[Pintglass]

Is the diode, here's the discussion....https://gbatemp.net/threads/trinket-internal-install.509633/page-16#post-8133481
Bad diode = Similar values in boths direction and i think that's my problem. Tomorrow i will try to replace it and come back as a result.

So your plugging your switch in to the usb port of a computer or power bank or what ever else, which all give out 5 volts and because you've got 5 volts on the top of the fuse/diode you think that could be your issue.
Sorry but i don't think changing that part will make any difference.

 

[tr1p1ea]

I had a short on a cap near BQ24193 and thought perhaps it was the chip - the short however is still present once I removed the chip. It is this cap:

Anyone know what this could relate to?

 

[Pintglass]

I had a short on a cap near BQ24193 and thought perhaps it was the chip - the short however is still present once I removed the chip. It is this cap:

Plug the charger in and see if that cap get's hot, don't leave it in for age's though.

Check in the usb port to make sure all pins are ok

 

[FXDX]

I had a short on a cap near BQ24193 and thought perhaps it was the chip - the short however is still present once I removed the chip. It is this cap:

Anyone know what this could relate to?

10uF 10v 0805 cap

 

[solac]

hi guys i finally tested my switch with a doc and it does not output anything to the screen. so a little recap i change the usb charge port and the p13usb ic. what do i need to check now ?

is there anyway to check if there its the usb charge port or the p13usb ic?

 

[Jiehfeng]

Now I feel ripped off again. I had a day one Switch that I sent to repair by a member on this site over at the trading forums, and when he said he was gonna send it back cause he couldn't repair it, he didn't reply after that and never did send it back. Lost my chances of hacking a Switch or repairing it. Sad.

 

[Mardare]

That's really bad news

 

[Agilato]

hi guys i finally tested my switch with a doc and it does not output anything to the screen. so a little recap i change the usb charge port and the p13usb ic. what do i need to check now ?

is there anyway to check if there its the usb charge port or the p13usb ic?

Check chokes near p13 chip, those are usually got fried with shorted USB-C

 

[FXDX]

Does anyone know what this component is and values ? Thx !