(Input / Output) Channel Selector (Relay & LED)

FEATURE

1. Support 4 audio inputs (RCA) and 1 balanced input (XLR) for both R and L channels .

2. Blue/White LEDs for indicator.
3. Built-in voltage regulator.
4. Required DC supply voltage 8-13V, and which can be supplied by tube amp.

5. PCB Dimension: 120mm(L) x 53mm(W)

ASSEMBLY GUIDE
1. Soldering the components according to the schematic and BOM.
2. For the 5 pin white connector, label 'E' is GND pin, whereas 'D', 'C', 'B', 'A' are the control pins for channel 1, 2, 3, and 4, respectively.
3. Apply 9-15V DC to the power supply connector, the LED will be led on while the corresponding control pin ('A', 'B', 'C', and 'D') is connected to 'E', that is grounded the control pin.