omminp
Forum Replies Created
- Posts
-
From the photo, it looks like it is missing the counterweight. That needs to be in place so the arm can be balanced….
Hi and thanks for the videos.
The noise doubles in frequency and becomes more intrusive as the speed increases. The idler is causing the noise, a bit annoying for you. Maybe worth swapping the idlers in the short term as suggested by chartz.
The belt is not likely to be a problem provided the uptake spool works ok when playing a tape.
Post a photo when you get it all back together.
Regards Peter
It all seems very promising for Beocord.
There were 2 models, the K which had a wooden case, and the T which was a ‘portable’ with a plastic case. You mention a plastic bottom bit and a wooden case top. I assume you have the model ‘K’ .
Either model is not designed to operate vertically.
To remove the case part, upend the machine onto a protective surface (maybe a bath towel) being careful not to bend any of the protruding controls. Look for 4 screws M4 holding the case to the chassis via 4 rubber vibration buffers. Remove the screws and lift the wooden case clear.
The noise – to me the description is about right for the 2 lower speeds, there is a small increase in noise as speed is increased (everything moves faster…) BUT the highest speed noise is wrong. Could it be something is rubbing at that setting? If you remove the cover plate under the tape spools (6 screws, and Allen key to remove the speed change knob) you can see how the mechanism works. In fact, mechanically nothing changes when the speed is changed EXCEPT the vertical position of the drive wheel on the stepped main pulley attached directly to the shaft of the Papst drive motor. I wonder if the main pulley is not in the correct location and causing the drive wheel to foul? Without power to the machine, you should be able to see the movement and determine if the drive wheel is progressing smoothly up and down the main pulley. The pulley position can be adjusted if you loosen the grub screw in the stepped pulley (2mm Allen key but needs an extra long one to reach the screw)
Sewing machine oil is fine, but remember less is better. One small drop per shaft.
Yes I know of no other service manual on line other than the German one. I find that if I can identify the part of the manual I need, then Google translate works well for a few paras.
I think you have hit the jackpot – and the circuit diagram is a real bonus after 50 years!
Best P
Hello Yann, great that the heads are working – you can get on and recover the tapes now. A good clean of the tape transport with IPA may be worth doing before going too far.
Re your interconnect issue, it is also possible to send the audio out to the RADIO DIN socket if the press buttons are used. That socket is wired mirror image to the line socket, so it will work with your cable. The function diagram for BEOCORD 2000 DE LUXE is a help, it shows the line out as pins 1 & 4 on the LINE socket, but 3 & 5 on the RADIO socket.
Regarding the transport noise, my experience is a small drop of oil on the transport wheel shafts and I can’t hear the mechanical noise over the noise from a clothes washing machine 2 rooms away – not silent, but I would say quiet.
Good luck.
I have found that the critical issue with these machines is the heads. It seems the original Bogen heads have a high failure rate, all but the erase head which seems to be a survivor. Often the other heads will be open circuit (both or 1 channel). Original heads are not readily available, and if they were they would be suspect given the time since manufacture.
The other known issue (fast winding) may not be a problem if that part is working.
