4002 will not advance on the record

7 replies

I have now checked this deck out and all functions work, I have cleaned, lubricated the dropping mechanism cylinder and cleaned the running rails which were squeaky. Everything works except, the record gets stuck, (I have tried several) i.e the arms are not moving across the record with the pickup dropped. It will travel to the end and back with no record and arm raised so it is not obstructed.

 How does the deck know how much and when to advance? Surely not pressure on the stylus?? The tonearm is very easily to move up and down but quite tight side to side Where do I look? I have the service manual

 T hanks, Peter

Hi

There is a photo detector diaphragm below the tonearm that tells the deck to advance. Probably your detector will need an adjustment or the detector circuit is faulty.

/Fredrik 

 

Exactly

- or the lamp has blown.

Martin

Hi The lamp is blown, the manual is not very helpful describing 'housing with lamp' what is the voltage rating of the lamp? will one from the speed indicators do the  job?

I swapped the lamp for a 3mm red LED and resistor. Works great, and now no more lamp to fail.

 Cheers,

Ben

Bulb replaced, diapragm adjusted, its very critical, and it no works perfectly. Thank you all for your help.

Good job !

Martin

or
BeoWorld Gold Membership card
Join BeoWorld

Register to access the forums, reference material, and exclusive member benefits — including our monthly prize draw.

Become a Member

December 2026 Prize Draw

Gold Members Only

As a Gold member you're automatically entered into our exclusive prize draw — your chance to win iconic Bang & Olufsen products. A unique benefit of BeoWorld Gold membership, every draw brings a new opportunity to win something special.