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  • Re: My Beolab 5000

    Soren Can you confirm your getting 11.5v on your AVC to the base of AF106 for me....? I think I have identified the transistor I'm touching with my screwdriver as TI401 and not AF106 as I was expecting, I have taken some measurments around it...but I dont have the 11.5v to the base of AF106 which is the first amplification for the antenna? oddly when I measure this point on Peters machine, which works fine...I dont get 11.5v either? Craig
    Posted to The Workbench (Forum) by Craig on Fri, Apr 12 2019
  • Re: My Beolab 5000

    Soren....Thanks for that, however looking at the picture and schematic I can see yours is a different version of the 5000 to mine, the transistor numbers and the schematic drg number differ from the one I have, mine is a 2005 model.....they look to be wired up differently. I'm having difficulty identifying the coils so cant determine which transistor is which...yours all seem to be metal can types too, where only one of mine is in that style. Craig
    Posted to The Workbench (Forum) by Craig on Thu, Apr 11 2019
  • Re: My Beolab 5000

    Ok.....following on from advice received from Solderon (Nick), and Martin I focused some more attention on the front end....I have discovered that when I touch one of the transistors inside the can with a screwdriver the tuning meter leaps up to a healthy level and the volume and clarity of the station I'm tuned to increase accordingly, its an appreciable increase in reception. I tried the same with Peters machine and there is no difference in the quality of reception or deflection of the tuning
    Posted to The Workbench (Forum) by Craig on Wed, Apr 10 2019
  • Re: My Beolab 5000

    The red line identifies the tab in the middle of a coil that connects to the offending junction.....the circle in this pic shows the transistor itself, can anyone identify him and suggest an equivalent?…….I can always winkle it out anyway and maybe read any markings, but I would prefer to be sure, also when I touch this tab the low voltages I have been measuring around the muting and stereo pots increase significantly too.
    Posted to The Workbench (Forum) by Craig on Wed, Apr 10 2019
  • Re: My Beolab 5000

    Voltages measured so far...the voltages measured within Peters machine in parenthesis
    Posted to The Workbench (Forum) by Craig on Tue, Apr 9 2019
  • Re: My Beolab 5000

    Cheers Martin....thought you may be looking in from time to time ;¬) Checked the thin wires in the front end coils and also checked them against peters unit and all are soundly connected, tuned both receiver's to the same channel again and had a probe around with my new scope.....it's going to take a little getting used too, lots of features that are a bit of a mystery to me right now.....however I connected both up to the scope from the test point at AF121/5 (69) the circuit above and
    Posted to The Workbench (Forum) by Craig on Tue, Apr 9 2019
  • Re: My Beolab 5000

    I also noticed during the above that my unit would briefly jump up in volume and clarity, the tuning meter cracks hard upscale....and then it all drops back down again?
    Posted to The Workbench (Forum) by Craig on Tue, Apr 9 2019
  • Re: My Beolab 5000

    Ok.....moving on, Peter called on Saturday and dropped off his Beomaster 5000 tuner to enable me to make some comparisons around voltage levels, I'm busy doing just that. I have to say Peters tuner is far more sensitive than mine and can pick up more stations. I have tuned both sets to the same channel and taken the measurements at the same time....I have scribbled them down and will tidy them up before posting tomorrow....
    Posted to The Workbench (Forum) by Craig on Mon, Apr 8 2019
  • Re: Beogram 4002

    The bulb for the fine speed indication and illumination will be an easy fix, get a gold membership and download the service manual and look up the control panel removal details, there are also lots of threads in the forums detailing how to replace these, Dillen on this site can supply new lamps. The tracking motor which is responsible for moving the tone arm which is continuously driving the arm inwards will be a bit more complicated....or not depending on the fault. The first thing to check is that
    Posted to BeoGram (Forum) by Craig on Sat, Apr 6 2019
  • Re: My Beolab 5000

    Charles Would BC549BTA be an acceptable replacement.....it looks quite close to me? Craig
    Posted to The Workbench (Forum) by Craig on Thu, Apr 4 2019
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