Hi, Does anyone know the reference of the orange neon strobe bulb for the Beogram 4000 please? The SM doesn't tell much! Thank you!

Hi, Happy New Year! The pictures of the pulley mod: The bushing (now a sleeve) with drilled hole to let the clamping screw get through: The assembled pulley: Not perfect, but it works. As regards the noise (and not knowing what the original part was made of), I added a felt washer. The rotation is not perfect, but after close inspection, the pulley

Hello, It turns out two micro-switches are noisy in operation; they emit noise when pushed by hand, even slightly so (a spring noise, if you see what I mean). B&O were right in changing over to an optical system. It is much more elegant and reliable (especially the later IR versions), and SILENT! For the carriage noise, the cause is the inappropriate

[quote user="Step1"] Well, if I am overly pedantic... [/quote] You are, man. You are indeed!! I went through the same perplexity (I have a 4002, remember) and then I looked inside... The trimmer that was added on later decks required this new position. Doh! Note: the photo was made prior to cleaning.

[quote user="Step1"] Have you checked if the servo moves at least once with every record revolution? [/quote] Yes it does, it's a clockwork! [quote user="Step1"] Also have you tried checking and adjusting the leaf springs under the metal plate maybe these are too tight. The switches really should not make any noise as they are

Hi Olly, Yes tracking weight was checked upon, and yes it was marginally out of balance. Noisier because I can hear the arm when it moves past the micro-switches, and the servo motor itself is much noisier than the newer 8000's which I can't hear at all. This is clearly audible through the speakers on quiet passages. I guess that's why they

Hello! I'm testing the deck in earnest now. The sound is a bit different from that of my Beogram 8000. The bass is noticeably lighter, but treble retrieval seems superior (SMMC20EN on both decks). The 4000 is a bit noisier too. There isn't much to it really, but the real issue for me is the mismatch to the Beosystem 6000!

I'm glad to report that the noise problem was due to two combining factors: a belt that was too tight (borrowed from my DC-powered 4002), and the motor phase trimmer which was out. Martin suggested the belt problem and was—isn't he always so—right... Retro-fitting the old belt (that is a bit slippery) completely calmed the motor

Platter now perfectly centered. Unfortunately, the motor has a problem. It is noisy because its bearings are worn: too much play makes it noisy, even after lubrication... By the way the white pulley is glued to the shaft... which shows it wasn't planed to be oiled anyway. And it is not openable. The noise isn't that loud but it is still there

The proof of the pudding... I got Martin's bulb this morning! After a rather lengthy adjustment of the arm, it finally works. There you go: BG4000.MOV You can't see the 33 illuminated trimmer but it works too. I just have a little AC motor noise (a cyclic gentle tap), although the strobe shows it to be stable. The arm lift/lower works fine,