ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
Hello ,
Recently purchased a beogram 1202, which I serviced and which is running fine now thanks to help from this forum (and soren's thread)
Now I found her partner, a beomaster 3000-2 (with some work) and a nice set of beovox p-30 flat speakers. Quality is perfect, bass seems to be enough.
I am planning to restore them both. Which means refurbish the speakers with new cloth and maybe grind and re-oil the wood.
The bigger 'challange' is the phono1 input. I knew there was some trouble, but im not afraid of a bit of soldering. The phono2 input works fine as a line-input and the fm-sound is also hummm free.
The phono1 input is very crackly with brief periods of clarity. This does not change when I wiggle the connections. With both a line input (my phone) and the beogram 1202.
Can I conclude I need to look for faulty parts in the pre-amplifier of the beomaster? Where is this located and any pointers?
Also the FM slider is nog working, the preference wheels do work. Any information on that?
Thanks in advance!
P 30s: Change the capacitors as well.
BM 3000: Get a cap and lamp kit from Martin, before ordering open the BM, top and bottom cover off, the preamp board is on the solder side, on there you will find 5 or 6, 50 Kohm trimmers, if black or corroded, change all of them, check the idle current trimmers, same. Order these as well from Martin.
The FM slider has probably come loose from the string, (broken pegs or only unglued), or string loose or broken.
Do not compromise with the caps, lamps and trimmers, change them all, if not bad now, they will go bad later on.
There is a good manual onsite for silver and gold members
Collecting Vintage B&O is not a hobby, its a lifestyle.
Thanks for your quick reply soren, became a silver member, thanks for the tip.
Is there also a tutorial availlable for replacing the caps and trimmers? ;)
I kan see the string of the slider coming out of the front, so guess you're right there aswell.
Maybe stupid question, the speakers sounds really well right now, what benefits would there be from a capacitator change;)?
kind regards
P 30s: Check here, scroll down to Beovox S30, thats what happens to old electrolytic caps. Make sure you get Bipolar caps. (also Martin)
If you buy a kit from Martin, it normally comes with instructions. but mainly its a question of desoldering the old ones and soldering in the new ones, checking polarization when desoldering and again when soldering. take pics and make notes. I have done wrong more times, so go slow and check check check.