Technical inspection reference for XC550TF-MJ, 850FT, and 870FT speed controllers. Featuring Dualsky's signature alternating dual-color LED Blinky pattern.
Dualsky utilizes an unmistakable dual-color flashing sequence at neutral throttle to confirm zero timing.
| Operating Condition | LED Indication | Operational Meaning | Tech Inspection Verdict |
|---|---|---|---|
| Neutral Throttle (Blinky Mode) |
Alternating RED & GREEN Flash
|
Stock Blinky profile active; 0° electronic timing advance. | PASS: Compliant Spec |
| Neutral Throttle (Modified Mode) |
Solid GREEN
|
Boost or dynamic timing advance active. | FAIL: Electronic Timing Detected |
| Forward Throttle Applied | Solid Green LED | Normal forward motor drive. | Dynamic circuit validated |
| Braking Applied | Solid Red LED | Dynamic braking active. | Brake circuit validated |
Official user manual for Dualsky XC550TF competition brushless speed controllers.
Official English operating manual covering ESC connections, setup parameters, program card menus, and throttle calibration.