Sony TC 105 Mod Input / Repro Mod

[smilan]

Hi,
I need some help with this modification.
I would like to change the behavior of this tape in a way that in REC mode the output amp will be connected to the repro head instead to the input.
Can someone please tell me how should I modify S1 in this way?
Attached link to the schematic:
https://i.ibb.co/ynK1jLY/Sony-TC-105-schematic.jpg

 

[Walrus]

I don't think you can, as the output amp is also the record amp!

 

[radardoug]

Its only a 2 head machine. In record, the play head becomes the record head. You need to buy a 3 head machine.