I have some time ago decided to solve this problem. I have found a Danish company accepting to work with very small quantities when re-plating the contacts. It is very expensive – mainly because of small quantities.

But we have now a solution for all the customers of Classic Audio.

This is the silver plated switches.

/Frede

A luxury solution.

I repaired one of those that was broken by cutting a new one one out of a sheet of thin brass 🙂

I am curious on how expensive very expensive is. Looks great of course.

-sonavor

I do copper plating as a part of my daily work (industrial and big pieces) the problem is you have several work cycles that all can go wrong, first comes a good cleaning with acetone or an acid, then an electro cleaning, then clean with water, then an activator, and then depending on the to plate material, nickel plating and at last the copper, all this done at different voltages and Amperes depending on the size of the item, I have never done silver plating, but the procedure must be similar. The chemicals used are expensive, and for each step you will need a steel basin connect all the items to an anode and the basin to a catode, adjust your current and know the time to be used. Not easy, comes to it the safe destruction of the chemicals after use.

Hi my begrime 4000 was working fine but then suddenly it stopped lowering, in not sure the most likely causes but is there a list of A-Z

for most likely trouble, it seems there is no activity from the solenoid, its not clicking, the on works fine, the tone arms cues but stops at the lead groove.

it also tracks across when there is no vinyl so it must be sensing no record, but stops at lead groove. up down does not activate it.

Please help

Check the solenoid current limit switch. The switch is closed when the tonearm is up (solenoid disengaged). After the solenoid engages and the lever moves forward this switch disconnects to limit the current to the solenoid. If that switch isn't closed at the start there may not be enough current to activate the solenoid so your tonearm won't lower. Worse case is the switch may have to be removed, cleaned and straightened. Before going that far you might only need to clean the contacts with some fine sand paper and check the switch position.

Hi Sonavor, thanks for the reply.

I did exactly as you said, had seen Beolover before and watched again, i used a little micro mesh to get to the points on the limiter switch, the switch itself is making contact, it is set as beolover described.

every other function works well it scans across when no record is on and and returns, then with the record it stops at the lead groove. The solenoid did not activate. 

Any other ideas anyone?

The Beogram 4000 I am working on has a similar problem. I am in the process of trouble-shooting through the control logic to see why the solenoid isn't activating. My turntable logic has the additional problem of not stopping at the set down points even though I can measure that those 24/30 cm and 17 cm switches are sending a signal to the control logic board. In addition, my turntable also won't manually set down when I use the lowering button.  I will let you know what I find.

-sonavor

hi again

Sounds like you have a lot more wrong with your BG 4000, the strange thing was mine was working away great but without and incident it just stopped lowering. I've taken the switches board out to finely sand between the points and put back together as believer had done, but no change in the current state of non play. Because mine is working well in all other areas surely it can't be much, it just seems like power is not activating to solenoid.

i would take the switches apart again if i thought it might be that, but I'm not sure after taking it apart already.

Literally everything else works except the solenoid activation, if this worked I'm sure the deck would be fine.

i have another pretty beaten up BG4000 and swap the solenoid from that around but still no change, so i ruled out solenoid being broken and my mate checked it and it seemed fine.

Thanks again

kevin