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ARCHIVED FORUM -- April 2007 to March 2012 READ ONLY FORUM
This is the first Archived Forum which was active between 17th April 2007 and
1st March February 2012
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You already asked the same once - and received a similar answer: http://forum.beoworld.org/forums/p/36758/304652.aspx I doubt you will find an original cable that is still safe to use. Martin
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Your body acts as an antenna and by inserting a paperclip or similar to reach the contacts in the socket, you transfer noise from yourself to the amplifier input. This will produce a buzzing sound from the speakers. An easy way to tell which pins in the socket are inputs. After that, you can touch the plug at the other end of the cable, the one that
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Welcome to Beoworld ! Wonderful Beomaster and of course it's fixable. Aging capacitors as a cause for strange faults shouldn't come as a surprise in any 20+ year old B&O but are you sure, you are using the correct pins in the DIN plug ? There are five pins. The center one is ground, the outer pairs are left/right and playback/record respectively
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The pulsating hum (unstable platter rotation) is usually either a power supply problem (capacitors) or a tachodisc problem. If the hum is consistent with the platter revolutions, the problem is almost always tachodisc related. The tachodisc is read by an opto sensor. Make sure this sensor sits apprx centered over the pattern. Slide it in or out a bit
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Nice item ! I have seen one or two go for similar amounts but they were in better condition. A lose tonearm with pulled off leads and a broken needle will not be impossible to fix but not particularly easy either. The lid pocket seems to be empty but the general appearance is very nice. Martin
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The Beogram 6006 and 8000 came with a tachodisc of the photographic type. This disc has a printed pattern that is read optically and from the opto signal the processor calculates and corrects the actual platter speed continously. The photographic type of disc is known to fall apart, the pattern slides around on the base material and even that material
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The test points are across resistor R90 which can just be shorted. Still, that does not provide any help if trimmer R89 is bad. The best thing would be to see the reset signal on a scope. Should be low when mains is connected and jump to some 4½-5 Volts within half a second or so. Martin
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Sounds like a reset problem - or the processor. Check trimmer R89 and zener D6 in the reset circuit and the other things already mentioned. Martin
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The problem with contact cleaner is that it won't remove the dirt, dust and oxidation. It will losen the oxidation and allow the dirt and dust to shift around a bit. In the best of cases the contact cleaner will evaporate completely (leaving the dirt where it just happens to sit now) but in the majority of cases this doesn't happen and the contact
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You need to separate the platter from the subplatter. They are separate parts but will often bind to eachother. Then install the subplatter, fit the belt and finally the platter. Martin
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