Oh yes, I think he is referring to a resistor modification in the remote control receiver. This was an issue on the very earliest Beomasters of this type. Funny if it hasn't surfaced earlier in your Beomaster but I suppose it's possible. I can include the resistor and instructions with the kits. Martin

My bet will be on marginal capacitors. There are a couple in the power supply area as well, 5-6 smaller ones (10-22uF or so) if I remember correctly. Martin

Yes. We were quite sure that the fuses were correct and the currents mentioned late at the first page of the thread was that of the solenoid, not that of the Beogram as a whole. Still, we were close. Martin

Good job, one more classic B&O saved ! The BC549 is the "deluxe" version of the more basic BC546, lower noise etc. Watch out for that bug, I started with a Beomaster 1900 ... Martin

Thanks, Friedmett. I now have Jeff's Beogram 4000 on the bench; The complaint was that it would hover the tonearm over the record for ages but when lowered it only took a few seconds before the fuse blew. The fuses in question are the mains fuses and in this Beogram they are 250mA slow burning as per the service manual. The service manual also states

1, Definitely ! Replace and readjust. Do both channels - one at a time. 2, Probably - or it has lost its tiny coal tip. Take apart and repair. 3, B-test (after-tape monitoring) function. It's supposed to be like this as you've already found out yourself. Martin

Don't tweak anything unless you are absolutely sure its needed. Trial and error won't get the tuning correct If the supply voltage to the board is correct (battery voltage), there's really not much you can do without more advanced instruments. Maybe it has a blown IF transistor or something like that. Sounds to me like a job for Tim... Martin

Good job ! Are you sure it's a BC174 ? I don't remember seeing of them before. Anyway, if it really is a BC174, you can substitute directly with a BC546, which is a more common type. Martin

I suppose we can rule out a power problem then unless the voltage on the main board is off. Check the main board for signs of broken tracks, damaged corners etc. Maybe someone tweaked the coils ... Martin

If this is a mains powered radio, check the power supply for cracked solders. It's very common to see, especially at the transistor with the long cooling fin. The power supply is in the metal can, metal lid held by one screw. Needless to say; unplug from mains before going in there. Martin