New blue g-boy REV4U

[randomguy]

Hello all!Doing a lot of test with my driver board,and this thing is actually not dead!It just got a weird issue:it only boot up when I short a connection between the F+ and the 5v line,but,at least,it works.It looks like a bad solution,but this thing actually work!
(just will wait for an answer of a professional for solder the 2 pads between ,I don't want to kill my pms)

EDIT:I think,with my little experience of young portablizer,I just do a stupid thing with the 5v line like soldering with the BATTERIES inside of the shell(yeah,I know it's stupid)and it's why the voltage was insuficient.

 

[Stitches]

That is very strange. The Fan headers have their own customisable voltage to control fan behaviour and shouldn't really be shorted to the 5v rail.

Can you provide a clear photo os your PMS wiring?

 

[randomguy]

Sure.Here it is.

 

[Stitches]

Good heavens man......................... you need to take the batteries out and shorten those lengths of exposed wire. No wonder things keep dying, you have a nightmare of voltage shorts just sitting waiting for the case to close and press one of them into a neighbour, and some of them are already touching!

When you solder a wire to a pad, there mustn't be any exposed wire sticking out from the solder joint. Using flux will help with preventing those blobby joints, but not rosin based flux. MG 8341 is highly recommended, and pretty much any no-clean flux paste by Kester works too.

 

[randomguy]

Oookk,I take the advice and I'm buying by this step some MG8341 flux.I will desold all my wires this afternoon and shorting them.
I understand better now why it does this kind of problem .Thank you for the quick reply,since now,I promise, I will only solder my electronics for Wii with that.
(And for the batterie,luckily,I did that just 3 times by forgoten them in my case and they are still working,I'm not so crazy)

 

[Stitches]

Excellent. Remember to clean any blackened flux off the boards with isopropyl alcohol and a soft bristled toothbrush afterwards. The "no-clean" title only refers to the substance not causing erosion or rusting if left on a PCB, it still needs to be cleaned off if it goes dark from being burnt or polluted. The dark bits can cause mini-shorts that will mess with the system

Keeping your soldering iron's tip clean will also help keep your joints tidy. A basic soldering sponge or a bit of brass wool will do wonders

 

[randomguy]

So, after rewireing all my pms's wires, I still got the same problem.My heatsink is outputing the good power (something like 3-5v) but not my 5v line.Here some pictures.
Edit: I use isopropolyc alcohol for clean the board,a little bit of flux and clean my iron for solder all these wires.

 

[Stitches]

Well done with the cleanup! That's much better, and safer. With that done we can rule out a short between PMS pads, but the 5V rail behaviour is still strange. I'm not sure how to troubleshoot that, but if shorting 5v to the fan pad works then I suppose that's what you might have to do to avoid buying another PMS

 

[randomguy]

Yeah, I think I will keep this solution for my 5v.Next step is to wire the wii to the IPS screen,just need to wait for some 38 awg green and red wires.