Description

" TA7318P Amp preamp VU header Meter db level header PCB driver board Original TA-7318P driver circuit is an upgraded version of the new drive head of the table better hands swinging rapidly responsive and the basis of progress in the 7318 circuit Step increases the drive signal can drive the header of the past the 7318 circuit can not drive an upgraded version has been increased to a wide range of regulator circuit the performance is more stable The original overall layout follows the original classic design style beautiful appearance compact and practical! Instructions: 1. 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. ) (1) 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!) (2) 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 connection borne power amplifier output terminals drive the board two HIGH terminal by two of the power amplifier were red terminals the two black borne power amplifier terminals choose which any one by driving the GND terminal board can. 2. The driver output: V + V-terminal: this is driven plate for the multiplier backlighting with the two groups of 12 V power supply output terminals backlighting pay attention to the connection of the light source voltage and matching headers are aligned to. + -terminal: this is to drive the multiplier output terminal board drive respectively then in two level table ""+"" and """" terminal the connection to the attention of anode. 3. The power supply parameters: Working voltage: AC/DC 12-15 V AC/DC amphibious wide working voltage range (recommended independent power transformer or independent power supply such as for its winding with the original audio system share power transformer may cause driven plate IC damage or audio system fault!) The power rating: 3W 4. PCB size: 60 * 39mm 5. Accessories: connecting headers to half a metre in two use. Package included: 1* 1 pc x NEW upgraded edition OF TA7 "