Philips D8434 - Take-Up spool not spinning

[ElMuchacho]

Hi, first of all let me tell you what an amazing forum you've built here, you've given me confidence to try to fix a boombox myself, although my expertise is more focused on old videogame systems

I've gotten myself a Philips D8434 boombox, everything works fine apart from the take-up spool when it's on play mode and it ends up chewing the tapes (luckily I've tested it with a Manolo Escobar tape, here you can kick a rock and thousands of them will come out flying). Fast forward and reverse work as a charm. Thing is, I've dissasembled the mechanism and I can't find a way for the cogs to engage for the take-up spool to spin. Maybe it has something to do with the pincher being dirty, I've cleaned it thouroughly with no luck.

Reading in these forums I've found sometimes there's a solenoid somewhere in the tape mechanism, but so far no electronic components. The wheels and the belt look ok to me, a little loose but I don't know if that has something to do with my problem.

I've attached a couple of pictures to see if any of you have any idea of how I can repair this dang thing. Thank you so much!

 

[ElMuchacho]

Sorry for the double post, looking at other thread I saw this picture

Seems like I'm missing... a whole cog right here

I own a resin 3D printer, maybe I could try to print another one to fix it, I have to look out for measurements, number of teeth and that kind of stuff.

 

[goodman]

Hello and welcome to the forum.
The last picture clearly shows that there is a missing gear.
You can watch this video for more information:

I don't know the dimensions, but I bought my gears from HERE
but I haven't changed them yet because the mechanisms work well.