Who can help me look at this small receiver power supply output voltage. The power is bad. There are 4 lines, which one is... Ground wire. 3.3 V 15V 20V
You can check it on another board of the receiver. There are two boards: one is the power supply, the other is the chip board
You find the power from the receiver circuit board 4 line sequence, then the 4 lines from the joint taken again to mount on the line.
Can be used, even if it can not be used, there will not be any problems, most of the polarization is wrong, 15V and 18V swap can be. (negative, 3.3V)
