The TDE DMBL7 is a brushless servo drive designed for 180–240 VAC input, rated 6–12 A and capable of driving BLQ motor types at up to 3 000 RPM. Common failure points in this class include power‑stage MOSFET burnouts, gate driver IC faults, and capacitor degradation on the high‑voltage side; overheating or overcurrent protection trips are also frequent. Begin troubleshooting by verifying the AC supply voltage and frequency, inspecting the drive’s input filtering capacitors for bulging or leakage, and checking the motor wiring continuity and load torque. Next, review any fault codes displayed on the drive’s panel or via its communication interface, then perform a visual inspection of the PCB for burnt components or loose solder joints before proceeding to component‑level testing.[oss-gpt-20b]