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Teac A-3340: Reverse playback mod
Teac A-3340: Reverse playback mod
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Old 30th November 2008, 01:09 PM   #1
Steerpike is offline Steerpike
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Default Teac A-3340: Reverse playback mod

Is there any reaon why the capstan motor in a Teac A3340 cannot be run in reverse?
It seems to be a very ordinary brushed Dc motor, with two brown wires, no + or - marked, and speed control is done 'outside' the motor.
Yet the label says 'ccw'
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Old 19th January 2009, 10:12 AM   #2
xmtrkidd is offline xmtrkidd  United States
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Default A 3340 Capstan Wiring

According to the book, the wires on the Capstan should be Orange and Yellow. The Yellow should go to an Electrolytic Cap (C6) going to the Frequency switch (50-60 Hz). The only Brown wire I see is in the Tape Speed Switch (SW8).

Looking at the schematic, I would say this motor is not designed to run in reverse, as the primary seems to accomodate two different voltages for the speeds.

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Old 20th January 2009, 06:56 PM   #3
Steerpike is offline Steerpike
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You're probably right, and thaks for the input xmtrkidd!
But I made a mistake there with the model number - I have an A-3440 ! And the motors are different.
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