hi michiel make sure the catch on the deck is not stuck/seized in the up position . 

Hi Chris, I'm sure its the fishtail hook thats broken. Unfortunately the broken part isn't in the box... At least I don't hear it when shaking.. It would be cool to have the original part, otherwise its gonna be another laser-cut-job-fix...

hi michiel ,  i have a spare deck for a 9090 so i have the cassette door lever/catch i will sort it out when i get home  

Hi Chris, very nice! Pm send!

posted should be with you in three days michiel  

Great to see members helping each other !!!

This gf 9090 looks dead mint Michiel !

VEry nice box!

Thanks a lot Chris!  Yessss the box is mint! Looks like some kind of jewel in my row of boxes, so clean it is! Only thing wrong with it is the broken door lever and it had some kind of howling noise playing cassette at the right channel... Had to push the record button just once and and it was gone.. Glad the seller didn't try that lol..

My GF-9090 is 100% again! Many many thanks to deliverance for providing the needed cassette door lock! 

Pics: this is how a very clean GF-9090 looks inside..

Fully working now!

happy days michiel        glad i could help .