Hi,
Just in case someone else has a dead fuse, I thought my experiences, as this post was HUGELY helpful to me.
I was given a Pleo by a friend who'd had a go at fixing it & failed. It had knackered batteries (no big surprise).
Unfortunately, during his attempts, he created & tested a battery pack with reversed polarity.
This created a completely non-responsive Pleo.
I hoped that it might have simply popped the fuse (which turned out to be correct)
I was scared by the amount of dismantling needed, so given the fact that this was not a pristine Pleo, I exploited the photos in this post and cheated.
I removed the skin from the underbelly & front legs and then cut in to the plastic to reveal the fuse.
I then realised that the Pleo articulates in the middle, and it's possible to wedge the rear of the body away from the front, meaning I did not need to cut in to the ring as pictured - whoops! (see pic)
This exposed the fuse.
I tested the fuse, which was indeed blown.
I soldered a piece of 5 amp fuse wire across the fuse, leaving the blown fuse in situ. (see pic)
I scraped away at the fuse wire in the middle to reduce the thickness and de-rate it a bit.
I then repaired the articulating ring with epoxy and re-assembled it.
Presto - the Pleo works perfectly, my daughter is enthralled, and "Marcy" lives.
The cut area of plastic is almost completely hidden by battery holder panel.
A better solution would be to solder a correct SMD fuse over the top of the blown fuse, but I didn't have one, so I'm hoping the fuse wire is not too highly rated / too slow blowing - I'm going to make very sure I don't make the same mistake when I fabricate replacement battery packs!
Pics are here:
https://photos.app.goo.gl/i8j5j3secp4iFPYC8