The button on VTX board has three functions or use ways on MXT-5G8-S1:
set up Channel, set up band; set up video signal input source. Connect power,
press SW 2 seconds after LED working frequency indication is finished, VTX
will enters set up menu, and two of the LEDs will indicate the present menu
state. The operation way is as the following:
1) Set up Channel: Long press SW 2 seconds till blue LED is on then release
SW, enters Channel set up mode (red LED flashes one time), short press
SW selecting Channel----the number of the blue LED flashing times
indicates the present Channel value;
2) Set up Band: Long press SW 2 seconds till the blue LED is on and then
release it, enters Band set up mode (red LED flashes twice), selecting
Band by short pressing SW---- the number of the blue LED flashing
times indicates the present Band value;
3) Exit and save: Long press SW 2 seconds till the blue LED is on then release
SW, red and blue LED blinks 5 times alternately, indicating set up mode
of VTX exits and the changed parameters are saved.
Menu structure for button pressing:
