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【 Figure 】 The volume encoder wiring diagram, how to judge whether the encoder meet right?

by:HENGXIANG     2020-11-05
How many friends with the volume encoder meet? Electronics to offer you a volume today encoder wiring diagram, the hope can help you. : as shown in the above diagram in the circuit includes a resistance change the pit, used to make a very low resistance pit tone control output matching network with former level. In the input transistor shot with the access network has two encoders, used to adjust the high and low respectively, while the rest of the encoder is used to adjust the volume, the secondary voltage magnification is about 20, input resistance is larger than 100 k, the output resistance is about 5 k. So, how to determine whether the encoder meet right? Friends can be judged by the following test. 1, the spinner knob volume increase or decrease in uniform, The volume increased clockwise and anticlockwise volume reduction) ; 2, the speaker should not be twisted process 'sasha vujacic', 'a giggling' noise, otherwise the encoder is bad; 3, the volume to a minimum, should can't hear any sound, Commonly known as: turn down dead) ; 4, the encoder gyration feel is good, have a uniform resistance. Shanghai electronic products co. , LTD. , 25 years old encoder manufacturers, products have passed TS16949 quality system ISO9001 ISO14001 quality certification, safe, reliable and trustworthy!
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