One for the automatic selection and store audio power amplifier Active Speaker test machine to connect the control center: including key choice, VFD display connection target code, as well as control audio suspended mute, remote control, a complete circuit diagrams, PCB and assembly code, the author in a DVD factory work works, the company produced 100 to the following agents, which eliminates the customers purchase, the need to repeatedly connect different machines source of trouble! This procedure remote control, VFD display some very classic

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