This is a split off from http://www.avforums.co.za/index.php/topic,17094.msg234849.html#msg234849.
The Revox A722 went through some updates in its life, but on the main power audio boards they are component changes only, so are easy to do.
The power supply distribution board and remote control interface changed too, but this involved a new printed circuit board. In my case, this is exactly the board which is cracked. The old one works, but when I make a replacement, I will follow the circuits for the final revision.
There seem to be no pcb overlay diagrams available for the A722, only circuits. So I have drawn up my own overlays for both the original version and the revisions.
I'll post these shortly.
The Revox A722 went through some updates in its life, but on the main power audio boards they are component changes only, so are easy to do.
The power supply distribution board and remote control interface changed too, but this involved a new printed circuit board. In my case, this is exactly the board which is cracked. The old one works, but when I make a replacement, I will follow the circuits for the final revision.
There seem to be no pcb overlay diagrams available for the A722, only circuits. So I have drawn up my own overlays for both the original version and the revisions.
I'll post these shortly.
