Bg 4000 tonearm behavior

[bulldog123]

On an otherwise fully functional Bg 4000 5215  I am getting the following behaviors:-

1) when pressing the ^ button the tonearm does not stay up once the ^ button is released – it just drops as if the down button had been pressed.  Same behavior on < and > buttons – is this a keypad problem or should I be looking elsewhere?

2) from time to time the tone arm drops suddenly instead of the normal smooth drop that is expected. This is not a persistent problem.

Any thoughts and guidance greatly appreciated.

[spassmaker]

Hi

Cold be a keypad problem, regarding to the SM the \/ button is normaly closed and the /\ button is normaly open.

So as there is a bad contact at the \/ button the tonearm will only stay up as long as you push any other button.

Cleaning the contacts is recommended, look here for further information:

https://beolover.blogspot.com/2017/10/beogram-4004-type-5526-keypad-contact.html

 

Kind regards

Christian

[bulldog123]

Thanks Spassmaker I will look at that.

[hcraig244]

Just spotted this post justin, picked up a chest infection from soewhere ;¬(

The tone arm dropping sharply sounds like not enough dampoing, try winding the srew in very slightly…..and I would check out the down switch contact…..if its playing up the tone arm will dot stay up when ^ is pressed

[bulldog123]

Great Craig.  Thank you.  I hope you make a speedy recovery.

[bulldog123]

Fixed.  Thank you Craig and Christian.  The down switch contact terminal was oxidized and bent – after cleaning and straightening it works a charm.  Tone arm is dropping smoothly now.  Sweet sounds are emanating from the deck and its owner.  Thanks again.

[Author]

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