1: Open the configuration software, locate the corresponding serial port, select and open the serial port, and then click "read" to read the current device parameters.
2: Select the "scrambling" or "descrambling" mode, and input the required scrambling or descrambling sequence, then press "Write" to input the data.
Pin definitions of the scrambling module:
1: DC 6-15V
2: DC GND
3: Video GND
4: Video in (Connect to the camera or the flight control OSD output)
5: Video GND
6: Video out (connect Tx)
7: TTL TXD
8: TTL GND
9: TTL RXD
Pin definitions of the descrambling module:
1: DC 6-15V
2: DC GND
3: Video GND
4: Video in (connect Rx video out)
5: Video GND
6: Video out (connect display/ VR)
7: TTL TXD
8: TTL GND
9: TTL RXD
If the video amplitude is still insufficient, then remove and short-circuit the resistor at the "R2" position.