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| + | [title] Investigating the Control Board |
|---|---|
| + | [* light_blue] 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. |
| + | [* green] 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. |
| + | [* black] The control board features: |
| + | [* red] Rectifier |
| + | [* yellow] Frequency Divider (produces a period of about 30 seconds) |
| + | [* violet] Stop Button |
| + | [* orange] Simple NPN Switch |
| + | [* black] Electromagnet (on back) |
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