Dear DiyAudio:
I got a PT Too for trade, but with issues. The last owner told me that it didn´t work, and I have now taken it apart.
It works, although not properly.
I know this doesn´t fix the bug, but:
-all electrolytic´s replaced
-rectifier replaced
Just to be certain the problem isn´t there.
But:
When trimpot on the right is turned to max and the trimpot to the left is turned to min, the motor runs quiet and as it should on 33. But when switching to 45 the motor just vibrates, not turning. When turning the left trimpot clockwise to 10 o´clock, the motor runs as it should, but now it just vibrates on 33. I have measured the two voltages at the motor (33/ 45) and it´s aprox 90V and 107V (when adjusted to the right speed with trimpot left). So the problem is that it´s not possible to adjust the trimpots to work on both speeds.
Anyone familiar with this?
Thank you in advance!
I got a PT Too for trade, but with issues. The last owner told me that it didn´t work, and I have now taken it apart.
It works, although not properly.
I know this doesn´t fix the bug, but:
-all electrolytic´s replaced
-rectifier replaced
Just to be certain the problem isn´t there.
But:
When trimpot on the right is turned to max and the trimpot to the left is turned to min, the motor runs quiet and as it should on 33. But when switching to 45 the motor just vibrates, not turning. When turning the left trimpot clockwise to 10 o´clock, the motor runs as it should, but now it just vibrates on 33. I have measured the two voltages at the motor (33/ 45) and it´s aprox 90V and 107V (when adjusted to the right speed with trimpot left). So the problem is that it´s not possible to adjust the trimpots to work on both speeds.
Anyone familiar with this?
Thank you in advance!
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