Dear seniors & all forum members, please help me in bellow written topics: I have one old 80watt trolley type stage use amplifier, its USB board became faulty, to replace this I arranged one USB board. This board consist of two 8002B (2watt) power amplifier made stereo output (BTL) channel; speaker connected to terminal 5 & 8. No one output terminal is connected with power supply common/ground. It means for two channel there are 4 wire.
Now, the power amplifier I have that is 3 wire input from original USB board (R, L& G common). I traced its input control & it is like this:
Please suggest me how I will figure out its connection from new USB board to amplifier input ckt. Thanks in advance.
Now, the power amplifier I have that is 3 wire input from original USB board (R, L& G common). I traced its input control & it is like this:
Please suggest me how I will figure out its connection from new USB board to amplifier input ckt. Thanks in advance.