And finally...the BM works again! I simply replaced every single IC and Transistor in the amplifier section, adjusted the offset and no-load voltages and now it works! No random shutdowns anymore, no excessive heat, great sound. Paid 10,51€ for the spares, so I think it was definitely worth it. Thanks to all for the great help and support!

[quote user="Dillen"] Sorry for me asking this, but are you educated in electronics in any way ?[/quote] I would say I am, though my knowledge stops about where ICs begin... But I'm well aware of the risks in this stuff. I knew the trimmers had to be readjusted, but I thought the fault switch would energise before anything like what happend

Well, looks like I killed the complete amplifier now. I tried swapping some components to find the fault and that didn't really work out well. There was one thing I noticed about the left channel amplifier last time it worked (approx. three months ago): It sounded great, but had only about 80% of the volume of the right channel and it got extremly

I tried to adjust the DC offset, but it seems that the problem is somewhere else.... DC readout is 1,9mV; I can't get it any lower than 1,8mV. Right channel is 2,1mV, so I guess thats more or less correct. Another problem is that the BM shuts down almost immediately - after about three seconds. Not really time for the voltage to settle. I checked

Well, you guys convinced me to check the amplifier section again. And...*surprise* it was the amplifier that was faulty. Sorry for not checking that earlier, but I just couldn't believe that this thing would have stopped working just from not being used for two months... Anyway, after disconnecting the complete left channel section of the amplifier

Sorry for not answering, I just didn't have the time to have another look at the BM until now. [quote user="blong"] Additionally. Refering to your possible fault in the amplifier stages, can you monitor the -50V (C20) and the +50V (C21) in the PSU with the BM on? Does either of these supply volts get pulled down sharply as the BM shuts

Thanks, that really is a great offer. I've sent you a PM. Hopefully shipping isn't that expensive...

Hi, I know it sounds strange, but: I'm looking for a single BV S30 Type 6301, preferably in rosewood. I own four of these, they are used with my BM2000. All except one in mint condition, one pair even had the original price tag on.....and then I managed to drop one of them last week. Was painting the walls and had to remove the S30 from its shelf

[quote user="Dillen"] Check also the reset circuit on the processor board. Another thing is cracked solders. [/quote] Well, I resoldered all connectors; sadly that didn't cure the fault. What should I check on the reset circuit? I did a test reset as described in the service manual - it worked as it should. Maybe it's really the amplifier

[quote user="Foxtrott"]As I know from personal experience (I come quite regulary to Würzburg and Nürnberg to visit friends) Franconia and the Franconians? (Franken) considers itself "independet" from bavaris too! Foxtrott [/quote] Yes, even more than from Germany. They want their own federal land to get rid off these leather