If not using Output 2 a 2.2KΩ Resistor must be placed across OUTPUT 2 “+” and “-” to prevent the OUTPUT 2 Trouble. A piece of wire (direct short) could have damaged the board.
If not using Output 2 a 2.2KΩ Resistor must be placed across OUTPUT 2 “+” and “-” to prevent the OUTPUT 2 Trouble. A piece of wire (direct short) could have damaged the board.