Beogram 4000 Restoration ?

17 replies

OK!  good tip,  I wiil do.

the deck is not working at the moment I have to reassemble and fix the board / panel  etc. 

but what about solenoid / just cleaning the mechanism /  and not ( oil) the piston in the solenoid ?  

I will inform you when I start up the deck again / hope it works. 

THX !

 

Barn

Dear Menahem,

Putting everything together / pushing the start button,  stroboscope light went on. and after 5 sec the unit goes of / pushing again start/ same / push  start and immidiatly the left arrrow . slowli the slide start to run a bit and went automaticly back .

verry frustrating / don't know what is the problem? maybe the contacts of the in the panel / which I cleaned / or bad wipers contacts ? 

In some cases when I push start the solenoid reacts for a second immidiatly / toke off the buton plates and push the little pin (left arrow) and the carriage runs over the spindle to the end as long as I keep my finger on the button. the pickup arms are not mobing at all when I start. 

I am desparated / Whats wrong? / don't know how to test further to find the problem and of course a solution.

in the service manual is now explanation of the functions of the contacts and how to adjust them etc,as soon as I put the paltes back troubles become more complicated. 

HELP!

 

Barn 

 

 

I would recommend a complete replacement of all electrolytic capacitors and the motor-drive transistors, which are bad at this point.

Location: Jerusalem

My B&O Icons:

Beoremote-Beo4.png Beoremote-Beo4.png
Beovox.png Beovox.png
Beomaster.png Beomaster.png
Beogram-400x.png Beogram-400x.png
Electronics Technician in Jerusalem Israel. B&O fan for over 50 years.

Menahem, sounds bad, I searchd the service manual can't find it / were are they loxared  and which one / capacitors and motortransistors / how to check them  good or bad / is this complicated/ is this a specialist job. or just solder work and replacement / when it's to complicated  I wil sell the Beo as it is and look for a less complicated recorplayer / Garrard / Linn/  Lenco and Thorens. 

Barn

Which country do you live in?

Location: Jerusalem

My B&O Icons:

Beoremote-Beo4.png Beoremote-Beo4.png
Beovox.png Beovox.png
Beomaster.png Beomaster.png
Beogram-400x.png Beogram-400x.png
Electronics Technician in Jerusalem Israel. B&O fan for over 50 years.

The Netherlands

There is no point in looking for another Turntable - they will all require repair, no matter what.

The BG4000 is the best of the best.

Location: Jerusalem

My B&O Icons:

Beoremote-Beo4.png Beoremote-Beo4.png
Beovox.png Beovox.png
Beomaster.png Beomaster.png
Beogram-400x.png Beogram-400x.png
Electronics Technician in Jerusalem Israel. B&O fan for over 50 years.
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