Beogram 6006 (8000 / 8002) stops after 30 .. 45 seconds

Hi everybody
3 weeks ago my Beogram suddenly stopped during playing a LP. Then I tried to play it again and I get the same result. I moved the tonearm in the middle position of the LP to exclude a mechanical position problem. The same result again. After 30 .. 45 seconds playing, the Beogram allways stops playing and move back in normal stop position. I replaced the aluminium electrolytic capacitors and tried it again. Still the same. I can't play a full LP. Could this be a problem with the sensor?

When the tonearm remains in one position during playback especially when a crack occurs (or when the servo motor is not strong enough) the deck goes into stand by. My beogram 8000 switched the whole set into stand by.

Chris

Repair shaft opto and/or tracking opto and/or related circuits.

Martin

Hi

Thx so much for all the answer I've got. All answers are very appreciated.
I decided to to take off the drive section first for cleaning and take some lube on it, because I figured out that some parts seemed very dry.
Unfortunaltely didn't I have any advice to take off the drive section (In the service manual is no description of that). So I tried to took off carefully the drive section and cleaned it, and after all, I installed it again. But now the tonearm seems to be quite losen. When I put the MMC20 pick up on it, it can't hold itself in the balance. Did I broke something duringtake off the section?

 

Hello from Brainstorm...Check the white plastic guide retainer...make shure it is postioned correctly on the shaft.  Rotate the shaft by hand. It should move freely.    

Hello Brainstorm
Yes, I was successful. The mechanic of my Beogram works fine again. Unfortunately do I still have the same problem that it allways stops after about 20 .. 30 seconds of playing.

Anyway I appreciate your help. Thank you.

Do you have pulses from the two opto receivers at the end of the threaded shaft?

Martin