TX LEDand Key Function Description
Connector
Description
Audio in
Analog audio source input
USB / Power in USB audio input / 5V Power source
Switch
Function
Description
CONNECT
ID
Learning
Trigger
When simultaneously press the
buttons both on Tx and Rx system
board longer than 3 seconds, the
ID learning process will be enable.
POWER
(Option)
RF switch
RF on / off switch
SW1
Audio
Source
Select
Analog input or USB audio input
Near Right is Analog input,
Near Left is USB input.
LED Function
Description
LED1
ID /
Sync
1. When audio input and RF On LED on
2. When RF Off or No audio input LED
blinking by 1s on /1s off
3. When ID learning LED blinking 15sec
by 0.25s on /0.25s off.
4. When Sleep mode LED blinking by
0.5s on /2s off.
LED2
Power in 1. When USB input DC 5v LED will
keep on.
Receiver function sketch map (RX)