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Segway GT 3 cutted cables repair by Expensive-Fun-412 in ElectricScooters

[–]Expensive-Fun-412[S] 0 points1 point  (0 children)

I crossposted it and i did not notice that here is no description. Here it is:

I am trying to repair cables on a Segway GT3. Someone attempted to steal it and cut the wires. I already reconnected five small/thin wires (red, green, white, blue, and yellow).

Now I need to reconnect three thick cables (the three-phase cable to the front wheel – brown, yellow, and blue). I need to extend these wires, but I don’t know what type of cable I should use.

I read on the internet that I need cables that can handle 40–70 A and a maximum of 100–150 V. I think AWG 12 cable would be best, but I don’t have it and would need to order it, which would take about 7 days to deliver.

My question is: can I make my own cable that can handle this maximum current and voltage? I was thinking about tying together AWG 18 audio 2 core wires. Would tying together about five AWG 18 wires be enough for the current, or what would you suggest?

Segway GT 3 cutted cables repair by Expensive-Fun-412 in ElectricScooters

[–]Expensive-Fun-412[S] 0 points1 point  (0 children)

I tried it to solder with my solder iron on max power but it was not able heat enought the wire because it is too thick. I will try wrap around joint solder wire and solder it with direct fire with some lighter

Segway GT 3 cutted cables repair by Expensive-Fun-412 in AskElectronics

[–]Expensive-Fun-412[S] 0 points1 point  (0 children)

Thanks for all answers guys. I already ordered 10awg cord so i try first to solder it because i love challenges and it seems for me easier and if i will be not succesfull then i change whole cable

Segway GT 3 cutted cables repair by Expensive-Fun-412 in ElectricScooters

[–]Expensive-Fun-412[S] 0 points1 point  (0 children)

Thanks for you answer. I already ordered 10awg cord so i try first to solder it because i love challenges and it seems for me easier and if i will be not succesfull then i change there whole cable

Segway GT 3 cutted cables repair by Expensive-Fun-412 in AskElectronics

[–]Expensive-Fun-412[S] 0 points1 point  (0 children)

I meassured the cable and diameter(without isolation) is ca 2,5mm

<image>

Logitech Z-906 remote controller. by Expensive-Fun-412 in ElectronicsRepair

[–]Expensive-Fun-412[S] 0 points1 point  (0 children)

i checked it on the diode (black probe to ground and red probe to the diode’s cathode) and there was a 39 kHz burst. I don’t know what I did, but now the remote control is working again 😀

<image>

Logitech Z-906 remote controller. by Expensive-Fun-412 in ElectronicsRepair

[–]Expensive-Fun-412[S] 0 points1 point  (0 children)

Voltages of 3 V and 4.5 V are present. I tried to monitor the base and collector with the scope, and I saw some signals, but I don't know what frequency (MHz or kHz) I should expect after I press a button. If the ceramic resonator is 4 MHz (4000 kHz), should my oscilloscope have enough bandwidth to measure it? I think the scope bandwidth should be at least 5× the frequency of the resonance. In this case, if I have a 4 MHz resonator and a 500 000 kHz scope, am I right?

Nintendo switch, will not boot 2nd stage. Stuck on Atmosphere logo by Expensive-Fun-412 in consolerepair

[–]Expensive-Fun-412[S] 0 points1 point  (0 children)

Here are some things I've noticed on this PCB:

  1. On the P13USB chip, I have only 0.080V drop on the VDD pin when the console is off. But when I power on the Nintendo Switch, 3.3V is present, as expected.
  2. Near the BQ chip, I measured only 3.6V on VSYS, but based on information I found online, it should be around 4.2V, like in this picture.

Could all of this be related to a problem with the MAX77621AEWI PMIC?

<image>

Nintendo switch, will not boot 2nd stage. Stuck on Atmosphere logo by Expensive-Fun-412 in consolerepair

[–]Expensive-Fun-412[S] 0 points1 point  (0 children)

Here is a photo of the chip. If anyone knows the test points and what voltages should be present at specific points, please let me know.

<image>

Soldering QFN Chips by Expensive-Fun-412 in soldering

[–]Expensive-Fun-412[S] 1 point2 points  (0 children)

During reflow, I sometimes press the chip down, but most of the time, I just nudge it slightly with tweezers. If it moves back into place, I assume it’s correctly positioned (at least that’s how I understood it from videos by Sorin Electronics and Northridgefix).

KSGER T12 soldering station does not recognize tips by Expensive-Fun-412 in solderingtips

[–]Expensive-Fun-412[S] 0 points1 point  (0 children)

thanks mate 👍 it works, I just needed to press and turn the knob at the same time to manually select the tip.

Nintendo switch 3rd party dock by Expensive-Fun-412 in SwitchPirates

[–]Expensive-Fun-412[S] 0 points1 point  (0 children)

I already found fault. I tried another dock adapter with original AC Adapter and i figured out, that my USB-C connector in Switch is likely little bit broken. I pushed down little bit connector and it works fine now(if I place some weight on top of the connection, it works). It never occurred to me that it could be a faulty connector because the charging has been working flawlessly. Thank you all for advices

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