Re: Sansui cd-x711 cd-player several problems!

From: Mark D. Zacharias (mzacharias_at_yis.us)
Date: 12/06/04


Date: Sun, 5 Dec 2004 20:09:55 -0600

Your friend is wrong. It must focus FIRST, then spin the disc. Focus fails,
no spin. Quite possibly a bad laser pickup. At the moment it "should" spin,
try helping the disc spin by giving it a push. May take a couple tries. If
it takes off, even spinning weakly, the spindle motor is bad. Sometimes they
can be fixed by spraying the brushes with cleaner. Let us know and if this
is the case maybe we can walk you through it.

Mark Z.

"Erik" <erik.eketorp@home.se> wrote in message
news:b873831a.0412051433.6c81f6a2@posting.google.com...
>I forgot to mention that I checked all leads to pickup and motor, they
> are ok. However, there is no voltage at the terminal the motor
> connects to, probably the same thing for the coils at the
> trackingdevice connection. When it tries to focus, I can see a dim red
> light, apparently the laser is ok. There are a couple of boards in the
> unit, but in this case I think a part of the RF/SERVO(f) board is
> likely to be failing, the board is in two parts, the part where both
> the motor and tracking connects to is a vertical mounted little board
> on the larger mainboard, where the other cables from the pickup goes
> to.
>
> Hope you can help me on this one.
>
> Thanks in advance, Erik
>



Relevant Pages

  • Re: Linear Motion Control - Servo?
    ... The direction of spin is controlled by the direction you apply the voltage. ... computers won't in general have the power needed to drive a motor directly. ... There are multiple options on how a computer might connect to the H-Bridge ... Your problem however is how to control a large number of motors without ...
    (comp.robotics.misc)
  • OT: Whirlpool Error Code
    ... It's either the tachometer, the MCU or the CCU or something inbetween. ... The unit does spin during rinse cycle's and such(not sure how fast as it's ... I hooked up a volt meter on the tachometer and spun it myself and I would ... I'm going to take out the motor and try to get to the tachometer and take ...
    (sci.electronics.design)
  • Re: GE washer wont spin or agitate
    ... but it doesn't agitate or spin. ... > power to the pump motor so as to minimize competing noise), ... the belt does not spin. ... > We're in the boonies, where repair techs are hard to come by, so we ...
    (alt.home.repair)
  • Re: 99 Jeep Wrangler Blower motor not working
    ... into the motor when the Dash switch is on and in any position. ... reconnected but i am unsure which wire this is. ... sufficient for the motor to spin but i cant figure out a way to test ... Instrument Panel Ground Screws Loose ...
    (rec.autos.4x4)
  • Re: Savage Roto Start Problems
    ... So does it turn the motor over at all or does it turn it over once, twice ... then slip and spin?? ... Is there a clicking noise coming from the unit on the back of the engine? ...
    (rec.models.rc.land)