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Technics Turntable Problem

Discussion in 'Electronic Repair' started by [email protected], Dec 27, 2006.

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  1. Guest

    Hi....

    Picked up a Technics SL-BD22 on Ebay. The tone arm is supposed to
    return to the cradle at the end of the record or when you press the Stop
    button. Unfortunately, it doesn't. Otherwise, looks new & sounds quite
    good with the Grado cartridge.

    Can anyone advise a way to troubeshoot/ fix this when I crawl in there?
    Any websites offering advice or pictures?

    Thanks in advance....Mike
     
  2. Ross Herbert

    Ross Herbert Guest


    You can buy a service manual here (search for slbd22)
    http://www.manuals-in-pdf.com/index.php
     
  3. GPG

    GPG Guest

    Take the platter off and check that the engagement hook on the gear
    moves when the arm is moved towards the centre or the stop button is
    pushed.
     
  4. Arfa Daily

    Arfa Daily Guest

    Agreed. Could be as simple as the pusher wire, which engages the lever that
    works the gate on the main gear, has become displaced, such that neither the
    tone arm, nor the stop button, cause it to move.

    Arfa
     
  5. jakdedert

    jakdedert Guest

    If it's old, the chances are that there is old, hardened grease in there
    which is not allowing something to move, which should be....

    jak
     
  6. You answered your own question, You bought it off Ebay.
     
  7. I've bought tons of stuff on eBay - rarely any problems, though I don't
    really consider normal maintenance on 30 year old equipment to be
    unexpected. The worst I've had were a couple pieces where the condition was
    overstated (as "good" when "fair to poor" would have been more appropriate),
    and a Tandberg open reel with lube problems. Anyone who knows Tandberg at
    all should expect them to be maintenance intensive anyway, so I wasn't too
    upset.

    Mark Z.
     
  8. b

    b Guest

    In the later, solenoid operated Tandbergs I've seen , the pinch roller
    mech always has hard grease on and needs stripping and relubing or the
    unit won't rewind; I've also seen 'em suffer from spasmodic logic due
    to the 33v rectifier, and the odd BC147 transistor. As for the older
    mechs like the series 14, 15 etc, they seem to rarely give any
    problems . Real workhorses. I wouldn't say Tandbergs were maintainance
    intensive at all. At least no more or less compared to other r2r makes
    I've used or worked on....Ben
     
  9. My experience with Tandberg starts with the 3000X. Brakes crumbled, belt
    sagged, regulator transistor opened up, lamps died, motor overheated from
    bad lubrication, power switch went bad, I forget if there was any other
    problems. I've fixed it more times than I can count.

    Had a 9200XD. Bad frequency response on one channel (since new), Dolby relay
    would go off by itself, record inhibit IC went tits up, then after I got it
    all running again, it got stolen.

    Had my brother's old 3300X for a while. Replace the bad euro capacitors
    since they were failing (getting hot, bad sound, etc) and cleaned the
    connectors, replaced the belt. As soon as power was applied one of the BC
    transistors failed immediately, pegging the meter.

    Had another 9200 XD, had the usual tarnished connectors, lamps out, and bad
    lube.

    I have a 10XD which I haven't even had the heart to get into.

    Mark Z.
     
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