BocuD
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Going from 320 to 400 to 1200 should be fine. It is not great but the wii should work. Those resistance values look good btw, it should work but for safety I would sand it with 400 and 1200 to be sure.
Worklog Ewhizz Portable Wii
- Thread starter Ewhizz
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Ewhizz
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Found some 600 and used that. Retested the resistances they were all pretty much the same (a touch lower) but I was testing at a different GND point. My CMB has arrived am wondering if this is how to hook up the 18650s to achieve 7.4v 6800 mAh? (See image below) also is 24awg wire thick enough for the voltage lines too and from the batteries? Thanks
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Yes that is exactly how you want to hook the batteries up. It shouldn't matter what ground you test from because they are all connected. Your resistances are fine, you were recommended to sand more so that a stray piece of copper that may not have got sanded all the way but isn't touching anything currently wouldn't randomly short something down the line. I would use 22g wire for the main power lines at minimum.
It doesn't matter which wire you choose to cut. They should all be shielded. Make sure it's a first party cable though because some 3rd party cables have shitty shielding. I've used a GameCube cable before so what it should look like when you cut it and strip off a bit at the end is a smaller wire with strands of wire wrapped around it. You can separate the strands and the internal wire in two different directions then treat the shielding strands as your ground wire (connect both ends to gnd) and the internal wire as your composite line. I personally prefer using the wifi antenna wire as it is a much thinner shielded wire but it's a lot more difficult to work with. Just make sure all of the strands are separated because if any of the shielding touches the exposed composite line wire your composite line will be shorted to gnd and you'll get no video signal.
Yes those are shielded wires you just cut the end off and strip the thick wire then find the smaller (it's very small and clear in the antenna wire) and strip that too. But for that tiny antenna wire I just use my iron to melt the insulation since it's so thin.
You connect one end of the internal wire to the composite output on Wii mobo and the other end to the screens composite input. Then connect both ends of the shielding to ground.
Yep! That's where I choose to wire my video (assuming you mean on the top side of the cap relative to your pic so you get that extra filtration). Nice and easy. You can also use that tiny little via next to it to ground your shielded wire.
Oh boy that's a bad spot to have a scratch... If the system turns on (outputs video) you should be good, but you scraped the ram chip and the traces for the ram... If you cut too deep there is no saving that board.
BocuD
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Test between the two sides of those traces. Try carefully scratching the traces like you do with bluetooth. Do it for 1 or 2 traces on either side and test continuity. If there is no continuity your wii is dead. The only way to make it work would be resoldering all of those 6 traces which is basically impossible. Good luck. If it works buy a lottery ticket cause youd be so damn lucky.
To prevent this happening in the future, I recommend getting a fibreglass pencil to expose the traces instead of a knife.
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Multimeter tips also are a lot easier to wield against traces than a knife. I just rub the trace over and over again like a pen on the trace until I have the copper exposed like I want.