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Home Forums Product Discussion & Questions BeoGram BeoGram 6500 erratic behaviour

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  • #66791
    alf
    SILVER Member

    Hi All,

    I am reaching out again with hope one of YOU may have answers ??

    the BG6500 plays but here is what happens:

    randomly the PU arm is dropping about midway on its return once the record has been finished – why ??

    all cam-wheels have been adjusted perfectly – there are no signs of obvious damage.

    is it at all possible that the uP is faulty ?

    I’d really need some help here – somebody please 😁

    ALF

     

    #66915
    alf
    SILVER Member

    Hi All,

    surprisingly no replies yet ? This issue is as interesting as it is annoying.

    in the meantime I scratched my head over that activity diagram in the SM which I am sorry to say

    is not quite clear to me ??

    it looks like the issue can be avoided if I catch the PU arm before it goes into automatic return mode at the end of a record by activating STOP manually which is odd.

    as stated previously:

    the magnet in the coils is fine and moves freely

    caps are replaced

    voltages as specified are present.

    i noticed that the two plastic levers (arms) at S1 and S3 which get operated by the magnet piston have

    different part numbers – i wonder if the one at S3 if the correct one stopping and freeing the associated camwheel as that wheel keeps still turning when it should actually be blocked from further rotation hence blocking the PU arm lowering ??

    sadly I am unable to compare that lever. i am aware this is at this point just a theory but as everything else

    is working as it should my money is still on a mechanical problem.

    please do chime in if you can – surly someone can, its THE B&O forum after all.

    ALF

     

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