Hello all,
I recently looked into getting a new pinch roller for my studer A810 (the previous one turned to goo a few years ago),
Upon powering up last month everything was fine, but today I turned it on and none of the lights were lit. It took me a monent to notice some faint hiss through the speaker, which indicated that it was powering up in part, before I could smell a faint burning smell (the smell was like electrolytic compound).
I immediately switched off the unit.
The unit has the dreaded farko caps in the card cage (I believe the EPROMs date to 1983)
I will recap the whole unit, I was wondering if anyone could offer any advice as to disassemble the unit logically.
I can't seem to get the card cage out - I could probably recap it with the cards out, and the back panels off, but I would prefer to free it, in case there are some caps on the top part of the board.
I have good desoldering equipment, and have repaired dozens of bits of audio gear.
I also have access to a lab / test equipment and a good EE friend if I get stuck.
I guess I'd like to hear from anyone that has done a complete recap / disassembly before, as they might be able to help me avoid some pitfalls along the way.
I plan to recap the card cage, test the psu voltages and recap that section as well, and then later on I will recap the motor caps, head electronics caps, card caps etc.
I was hoping to backup my data before replacing the battery (tiny bit of leakage) but the machine can't be powered now so I guess I'll just have to re calibrate once its restored.
Thanks for your time! Looking forward to hearing of your ideas
