I was searching the net for info of 3d50e.
I found this thread of this forum.
www.boomboxery.com
However. I could not reply so many years after. But! Changing all the blue capacitors made my day.
I had no 3d-power and the GE did not work as it should.
Thank you for the old thread from 2013.
Regards from Sweden.
I found this thread of this forum.

Hitachi TRK-3d50E "3D System" doesn't seem to do anything?
Hi, this is my first post and first 3D box. It's a TRK-3d50E Hitachi which is absolutely mint. Just from its looks alone I was going to buy it -even if it didn't turn on! It looks like it was tuned into BBC Radio 4 when it was first bought and since has never been touched. I don't know how the...

However. I could not reply so many years after. But! Changing all the blue capacitors made my day.
I had no 3d-power and the GE did not work as it should.
Thank you for the old thread from 2013.
Regards from Sweden.