Methods to solve servo vibration include:

1. Use a regulated power supply or capacitor for power supply filtering.

2. Keep power lines and control signal lines away from equipment that may cause interference.

3. Make sure that the signal line of the servo is not interfered by other power lines or signal lines.

4. Check and improve the connection of the servo drive circuit.

5. Make sure the power line and signal line are grounded together.

6. In some cases, it may be necessary to use higher quality servos to reduce jitter.