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  • Re: MMC20EN and MMC20E

    Both models have the same motor and suspension as they are from the same generation. The “N” designation means it has a nude diamond instead of a bonded one.
    Posted to BeoGram (Forum) by Mark on Fri, Nov 26 2021
  • Re: Beogram 5500 / MMC4

    Good job! Note the reflection (lighter area) at the very tip. This is the only portion that contacts the groove. As this wears it becomes flatter and wider thus reflecting more light. There is definitely visible wear but as to whether you are hearing this, I would need a better description of what you now are hearing that you view as abnormal.
    Posted to BeoGram (Forum) by Mark on Thu, Nov 25 2021
  • Re: Beogram 8000 Set-down Not Working Properly

    You need to go through the arm tangential tracking adjustment (Aperture and Photo Control) that is detailed in the Service Manual.
    Posted to BeoGram (Forum) by Mark on Thu, Nov 25 2021
  • Re: Beogram 5500 / MMC4

    Its really not possible to evaluate wear w/o a better microscope (usually observed from straight above); however, your picture which is excellent for a cheap USB scope shows quite a lot of build up on just below the tip which should appear as a smooth cone to its shaft if it were clean. When you state you playing of records was not successful, can you describe what you were hearing that made you feel this way? Also have you checked that the arm tracing force is correct? Finally, to clean that tip
    Posted to BeoGram (Forum) by Mark on Wed, Nov 24 2021
  • Re: Beogram 1200 with phono cables humming.

    The DIN cable has a double shield. Each channel has a shield and the entire cable has one. It’s quite possible the phono cables were not grounded properly inside. Generally, tying all three together at a single ground point has worked for me in the past.
    Posted to BeoGram (Forum) by Mark on Fri, Nov 19 2021
  • Re: Beogram TX Platter/Fly Wheel issue

    Since you are seeing it go up and down versus simply not being level with the top plate, that indicate a problem with the sub-plater as you state it happens with the platter removed. There is that black plastic insert that could not be completely seated. If will not be the bearing or suspension as they would cause simply a fixed tilt. It has to be a rotational part based upon your description. I would remove the subplatter and examine it for lack os it being perpendicular to the shaft. You will need
    Posted to BeoGram (Forum) by Mark on Fri, Nov 19 2021
  • Re: BG 8000, end of record detection, adjustment of sensitivity?

    I would suggest that the servo motor is not properly moving based on the optical sensor adjustment. Go through the procedure as detailed in the manual: https://beomanuals.com/manuals/Beogram/Beogram%208000/Beogram_8000-Service_Manual-version2.pdf
    Posted to BeoGram (Forum) by Mark on Sun, Nov 14 2021
  • Re: Time to replace my stylus?

    Aging is obviously a continuous process and I only have my tech experience to draw from versus working for a cartridge manufacturer. If you think about it as the suspension becomes less elastic, it will resist the stylus movement which is more pronounced on bass frequencies where stylus wear will prevent the cantilever from tracing treble frequencies. Once the suspension loses all elasticity the record grove vibrations can cause it to crack and give way resulting in the cantilever no longer supporting
    Posted to BeoGram (Forum) by Mark on Wed, Nov 10 2021
  • Re: Time to replace my stylus?

    Generally on a moving iron or magnet cartridge the diamond wears out far quicker than the suspension which usually consists of a piece or elastomer. If the cartridge has been unplayed for years but still has a good diamond the elastomer can become brittle which results in it no longer supporting the cartridge at the designed vertical tracking angle and sagging where the guard can hit the record. Many normal cartridges are designed so that when their body is parallel to the record the VTA is correct
    Posted to BeoGram (Forum) by Mark on Tue, Nov 9 2021
  • Re: Time to replace my stylus?

    After checking the stylus tip as ProGram suggested for both cord and the diamond, I would not push down on the tonearm but instead check to see if the tracking force is correct by rebalancing the arm. If the suspension has given out then this will be visible at the correct tracking force.
    Posted to BeoGram (Forum) by Mark on Sun, Nov 7 2021
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