Well, I can't really say that I understand why you cannot open the Beocenter as there is nothing to lock it in the tape bay, at least that's how I remember it. The aluminum lid over the tapedeck needs to be closed though, also the one for the CD deck. That's important. You did remember to remove the three screws under the front edge of the

I agree it sounds like a bad decoupling of the supply to the digitally controlled volume/tone controls. Replace capacitors on the processor board and also the small 10uF and 22uF ones between the mains transformer and the regulators in the power supply section. Martin

Eller finde en god brugt. De koster ikke alverden. Martin

Har du prøvet at spørge hos en B&O forhandler ? Martin

Did you only replace the TIPs when it was fried ? Ideally, you should replace all components in the affected circuit, it's DC coupled so a fault in one stage will affect the next and previous but less will often do. That means all semiconductors, all resistors in the idle current circuit and check the constant current generator. Any component that

[quote user="Ulf"] Ich weiß nicht welche Riemen Martin in seinen Anlagen verbaut. Mein Beocenter 9500 Tape werkelt genau mit diesem vom Original Ersatzteil ausgemessenen Riemen. Art. Nr.: 2732101 Im Durchmesser kann man sich natürlich um +- 1 mm vermessen haben. Gut die Dicke ist tatsächlich 0,5 statt 1 mm, war wohl die Brille

Good job ! Repairs to faults that has no "natural" cause are often the worst and most time consuming. Particularly if you are not aware that somebody has modified something so you are merely checking what would normally go wrong. Martin

Well, sorry but I have no more info on this. It's most likely an early test- or prototype unit as already suggested. It has been put into storage now. Martin

Sorry but none of the figures that Ulf mentions are correct (and the type of deck that Ulf refers to actually uses three belts). 65mm is far too tight and 1mm is too thick. The motor will have a hard time keeping the speed up, the current draw will be too high and the motor- and capstan bearings will wear very fast. It's correct when B&O claims

Could be a processor fault but ripple on the supply lines can also cause "digital confusion". Replace the capacitors on the processor board, the larger one for the 5V supply and also the 4-5 small ones between the regulators and mains transformer. Check the rectifiers and check for cracked solder joints where connectors are soldered to the