Serpentine GN300 High-Frequency Electric Knife Repair Case

Appearance inspection: Conducted by a qualified endoscope repair specialist, the appearance inspection confirmed that the host unit was structurally intact, with no obvious signs of external damage.

2. Fault phenomenon: The host is connected to AC power, and the error ER400 is reported when it is turned on.

3. Disassembly diagnosis: It is judged to be a power module problem. There are damaged components, multiple chips are burned, and internal signals are disordered.

4. Repair plan: As an experienced endoscopy equipment supplier providing integrated repair services, the repair plan included:

① Repair the power board  ② Calibrate the output voltage and strengthen the internal firmware. (No accessories for bipolar detection.