Thanks! I had the exact same problem with the speaker-buttons being "broken", and by watching your video, I managed to NOT break the ribbon-cable when taking the switch-assembly apart. So at least you have saved at least one other person from the same headache. Again, thanks for that!
You've got the patience of a saint for tackling this receiver. I applaud your perseverance. It's the only piece of electronic gear that I had completely lost the will to fix it by the time I managed to get access to the circuit. Suffice to say that I postponed putting it back together for months until the point when a house move forced me to get rid of it - unwillingly, but I just didn't have the energy to even contemplate putting it back together. I think the casing of this thing was probably meant as a puzzle to put off unauthorized repair technicians from ever attempting to fix B&O gear ever again ...
B&O stuff is always a pain to work on, well done on repairing it. I admire your determination to fix it, If it were mine, it would have been parted out!
Before work in these units, please read up on the service manual, widely available on the internet.They are, apart from the switches, easy and straight forward to work on, if you have the experience. There are some work left, you need to replace the PSU caps and some small signal caps to get the signals right, and change the bias trimpot´s as they must work properly. don´t overwork the unit, as they are brittle in the tuner PCB, just as you experienced.
Lovely Work FR Most People Would Have Given Up But You Persevered With It You Would Have Thought Back Then That They Would Have Used a Metal Pin Instead Of The Nylon Ones That Would Eventually Break a Cost Saveing Measure Methinks Thanks For The Upload Stay Safe Regards mike.
Looks like Bang and Olufsen had a serious problem with use of proper materials. Also an overly complex mechanical design. Not designed for long life at all. They were always considered the top of the line for audio equipment but I guess that was only for the first 5-10 years. After that they just broke due to use of wrong plastics etc...
