Wii not turning on

[tankie3k]

It's not pretty but I've solder all of the major voltage lines and hooked up batteries. However the entire system isn't reading any volts across when I turn it on. I can't tell if I should give up on the random taco switch or if something went extremely wrong.

 

[Customledmods]

Can you upload some good photos of both sides of the motherboard and good photos of the pms.

 

[Legend]

I agree with customledmods when saying you should upload better pictures! But also try disconnecting all the voltage wires between the wii and pms. Then test the pms volt pads between ground for shorts.

If your not getting any shorts on the pms side of things, try turning it on to see if it's giving any voltage on any of the voltage pads. If all is good on the pms side of things, check for shorts on your wii without anything connected.

In the photo I did see you post, the soldering looks okay, but it looks like you could benefit from some more flux.

 

[tankie3k]

Aside from maybe shorting the 1.8v regulator I can't find anything wrong. I'm not reading any volts on the wii itself and the batterys are reading 3.5 volts.

 

[Thannyo]

On the last photo, it seems that the ground connection on top touches the 5v pad. So maybe there is a short here.

 

[Legend]

Your ground wire is most definitely probably touching the 5v pad. And also this gouge taken out of the ground castellated pad looks a little concerning

I know it sucks to disconnect everything but I would desolder everything from the pms and check for shorts between each voltage pad. If everything checks out and there is no shorts, then connect the battery and the button back to the pms and turn it on to see if your getting the correct voltage from each pad

Also given there's no shorts and your testing again, make sure to recut your wires, twist them, and then tin them before reconnecting them back to the pms. They're flaring out all over the place and that can cause shorts as well as cold solder joints

 

[tankie3k]

I resoldered the gnd so it doesn't touch 5v but after doing some readings I'm not reading any volts on the motherboard itself on any rails. I have a small hunch it's either the gauge of magnet wire or the button not working.
edit: the ground pad was just tinned a while ago so it looks broken.

 

[Legend]

I resoldered the gnd so it doesn't touch 5v but after doing some readings I'm not reading any volts on the motherboard itself on any rails. I have a small hunch it's either the gauge of magnet wire or the button not working.
edit: the ground pad was just tinned a while ago so it looks broken.

Again, I know it's sucks but I recommend disconnecting everything, testing, and trying again. It's a pain but that's really the only way your going to narrow down your issue

 

[RegDogg]

Another thing, make sure you are pre-tinning and using flux on all of the pads where you are soldering wires, the connections on your PMS could especially use it to confirm a good joint, because if it breaks off while the PMS is on, it could short a positive voltage rail to ground, resulting in damage to you Wii or PMS

 

[tankie3k]

I have held off on resoldering because I'm not getting any volts out of any of the PMS pads or on the wii itself. I checked resistance again and it seemed fine so I think it comes back to either the battery or power switch.

Edit: the battery is only reading 3.48v which ginger in his tutorial said was really low

 

[Legend]

Yeah, I would try charging your battery externally if you can. Also if your unsure about your button at the moment, you can always solder a wire to the BTN pad and touch the other end of that wire to ground to turn the pms on. I would of course only do this for testing.

 

[tankie3k]

how many volts and amps that I should supply to the pms to charge them?

 

[Stitches]

If I remember correctly 9V 3A and 12V 3A are good presets if you arent using a PD module

 

[tankie3k]

I've had them connected to 15V/2A for a day but the voltage hasn't changed on the batteries. I've had the power supplied to the pms on the charge and ground is that wrong though?

 

[Stitches]

Charge is the correct pad to connect the power supply positive to. If it isn't charging the cells at all, there's a problem. Most likely either with the PMS or the cells

 

[tankie3k]

How do I test the pms, I don't think I've done anything to it nor do any pads look like they're shorting to each other.

 

[tankie3k]

I've done more looking and I'm only reading 3.45v going into the battery from the PMS I can't find what it's supposed to supply though.

 

[Stitches]

3.45v would be the current battery voltage. Do you have another DC power supply to use to test charging? Preferably a 12v one

 

[tankie3k]

I've been able to test with multiple voltages going into the PMS but the charging voltage is always somewhere around the 3.45 mark, I haven't been able to supply higher than 2A though. I've brought the charging voltage into question because the datasheet for the battery says charging voltage is 4.2V. Idk what I can do to charge the batteries, I haven't even tested my trim yet.

 

[Stitches]

Unless you have other cells to test with, it sounds like your PMS has died.