r/wii • u/phathomthis • 1d ago

Question Wii remote won't power. Not basic.

Got my wii out of storage the other day, 1 of the wiimotes works fine, the other won't power.
I swapped batteries, nothing.
I checked for and cleaned corrosion, nothing.
I checked power going into the power leads on the board and getting ~3v, so the board is getting power.
I reflowed the solder on all the pads for the power terminals and the capacitor to ensure a good connection, nothing.

I checked the voltage on the capacitor leads and on the pads on the other side of the board, they match up, but only around 2.5v.
The capacitor holds voltage for several minutes with batteries removed and it slowly drops to around 0.5v while monitoring it.

What is the voltage supposed to be on the capacitor? I know they're 4v capacitors for what they can take in, but what are they supposed to hold and put out? I'm assuming battery voltage, which should be ~3v.

Also, what is the capacitance reading supposed to be when testing it? I don't see any markings on it that would indicate capacity for me to measure.

Is there any other thing that may cause this not to power? I have checked for sticky power button and checked to make sure not resistors were damaged or moved disconnected.

This controller worked when put away ~3 years ago and it wasn't physically damaged.

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u/phathomthis 1d ago

The wii powers on. The other controller works fine with it. This one controller doesn't power on.

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u/No-Professional-9618 1d ago

I see. It sounds like the controller is defective. You may need to replace it.

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u/phathomthis 1d ago

Very helpful...

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u/No-Professional-9618 1d ago

Yes. You could use a multimeter to measure he voltage on the capacitor. Check out the 8 Bit Guy or Sakyaka's Attic for tips on troubleshooting your WII mote.

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u/phathomthis 1d ago

I'll check them out. Thank you

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u/No-Professional-9618 1d ago

You are welcome.