Stap 5 vertalen
Stap 5
Investigating the Control Board
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Remove the 5 screws on the PCB and switch. Only 3 screws are visible in the guide. 1 is lost forever and 1 is hiding in shadows.
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Carefully pull the control board and power switch off. The knob is fixed to the control board potentiometer. The Stop button is only held in by the control board.
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The control board features:
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Rectifier
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Frequency Divider (produces a period of about 30 seconds)
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Stop Button
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Simple NPN Switch
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Electromagnet (on back)
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