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Description microscope M695
09/93 3077-HWE
Presetting the zoom
displacement speed
The displacement speed is adjusted by means of the supply voltage for the
zoom motor. The final stage only has a switching function. The ZOOM
SPEED level is the reference for the voltage regulator on the zoom servo
board.
The regulator has a positive current feedback, and so the motor voltage
increases with the load. The current through the final stage is limited to
about 150mA.
Service manual M695
Doc code 636 718
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