| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 406.1 | "Are we the diminishing race?" | TROOA::SLEUNG | | Tue Mar 30 1993 00:04 | 11 |
| The belt of the turntable may be aged too much that it doesn't provide
enought frictional pull on the heavy turntable i.e. there may be
slippage between the pully on the motor and the belt. Inspect the motor
pulley, if your see black dust deposit on it, its propably the problem.
You may want to invest a few pounds on a new belt to see if its the
problem.
regards
Samuel
|
| 406.2 | No black deposit | AYOV17::SREGAN | Sugar and mice and all things diced | Tue Mar 30 1993 13:34 | 12 |
| When I had the turntable in bits I noticed that the spindle didn't have
any black deposit or such like on it and there wasn't any on the
platter either and the belt tension seemed fine. Also, it was the spindle
itself that was going slowly. When the belt was disconnected the
spindle went faster but didn't appear to change speed when the rpm selector
was flicked between 33 and 45.Never-the-less I'll keep it in mind and if it
happens again I'll see about getting a new belt.
Cheers for the input.
The Bishop
|
| 406.3 | motor may need oil | TROOA::SLEUNG | | Tue Mar 30 1993 18:46 | 26 |
| In this case, I suspect that its the motor which is aged to a point
that it cannot provide the necessary torque to bring the turn tabale up
to speed; that's why if you manually turn the table i.e. help the motor
by providing some extra torque, the turntable works fine. The reason
for this is that keeping the spindle once its started requires much
less torque than bring the table from zero speed to the working speed.
On thing you can do is oil the spindle bearing with light weight oil,
like WD40, be sure you do this for both bearing(the upper and lower
ones).
Also unless your table is the kind uses phase lock loop or one of the
servo speed control technology, otherwise the motor should be turning
at a predefined constant speed, to change from 33 to 45 there is a
lever actully moving the belt to mesh with a different radius segment
of the motor spindle pulley(you can note this from looking for the
lever and the spindle pulley should have two segments with slight
diameter difference like two pulleys stacks together).
Hoped this will help.
Tell me the progress
Regards
Samuel
|
| 406.4 | No more bump starts! | AYOV17::SREGAN | Sugar and mice and all things diced | Tue Mar 30 1993 19:54 | 18 |
| One thing you forgot:
I had to spin the table ONCE and since then it has worked fine. When I
stop and restart it again now it goes up to the correct speed. I do not
have to spin it every time I start it. So far, it has not done it's
slowing down trick since Sunday night and I used it a fair bit last
night, but we'll wait and see what happens.
I can also tell you that the spindle doesn't have two segments for the
different speeds and I would assume it is a servo.
Anyways I've now got a few ideas to play with if it happens again and I
should manage to avoid taking it to a repair shop. I don't want to lose
an arm and a leg!
Cheers
The Bishop
|
| 406.5 | Back to old faithful? | AYOV14::SREGAN | Sugar and mice and all things diced | Fri Apr 02 1993 13:25 | 17 |
| 406.6 | re-use? | PEKING::GERRYT | | Fri May 14 1993 21:23 | 3 |
| Why not use the cartridge off the SLB2 in the Pioneer?
tim
|