Product Description A signal input: There are two signal input methods provided by driver board, depending on your situation, choosing one of them! (Hint: If the volume potentiometer Side to take the back-end, or the amplifier output signal pointer swing is controlled by the volume potentiometer, that is the volume pointer swing and the volume small pointer swing. LOW, GND, LOW: this is driven plate LOW level signals input terminals, used to refute meet CD machine, computer sound card, the former stage, such as audio source equipment audio signal, wiring LOW, when GND, LOW corresponding: left, and right sound channel can be. driving plate on the two potentiometer, whose hands can adjust the swing size, such as signal full swing open, pointer is not up to your expectations, but will drive on the board, R3 resistance take out, R2 R2, R3, is used to drive the board meet high level when the input signal to the earth of resistance in use, only attenuation high-level input will be used, because can't make sure you specific use which kinds of signal input methods, so the R2, finished product drive board is welded, R3 resistance welding, tear down than up easily more, after all, is not all people have welding equipment, ha ha, which, of course, belong to and special circumstances, usually is not removed!) HIGH, GND, HIGH: this is the driver board HIGH level signal input terminals, used to pick up after borne power amplifier amplification by power signal, driven plate with attenuation circuit, will the power output of the HIGH strength level to drive after attenuation IC, attenuation circuit contains just mentioned and R3 resistance R2 Package: 1x TA7318P pre-Amp PCB driver board
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1 month ago
1 month ago