Sets the minimum motor speed when the main knob is at zero.
The is a common DC motor controller used in mini lathes like the CJ0618. While a single "full schematic" file is often difficult to find as a standalone high-resolution image, the technical details and wiring diagrams are documented across several specialist manuals and repair guides. 1. Official Documentation & Manuals jymc220bi schematic full
Below is a of the typical reference schematic you would find in the JYMC‑220BI datasheet. All component values are the most common for the 5 V‑fixed version; the 12 V version swaps a few resistors and a larger output capacitor. Sets the minimum motor speed when the main knob is at zero
Since official "full schematics" are rarely published by manufacturers, technicians often rely on circuit board analysis and pinout diagrams to troubleshoot failures. Technical Specifications Since official "full schematics" are rarely published by
The unit is engineered to handle high-power demands typical of machining equipment: Input Voltage: 230V AC (50/60 Hz). Output Range: 0–180V DC. Rated Current: Protections: