#electronic

  1. S

    Active Speaker Powers on but No Sound. Replaced transistors.

    I have a Hybrid PB 15" Active Speaker. It has 2 channels and a Speakon Amp out port. The speak blew due to an electrical surge. I replaced the fuse, Replaced all 4 transistors (2x A1941 and 2x C5198) I replaced 2 R100 resisters (brown black brown gold) but still no sound. Speaker Powers up...
  2. M

    LM317 Digital control (DAC)

    Hi, I need to control LM317 digitally with DAC. I connected DAC's VCC pin to Arduino's 5 V. SDA pin to A4, SCL pin to A5. Connected A0 and gnd pins to my circuit's gnd which I fed LM317. But, when I create real circuit and test it, I take 2.7 V to 3.3 V from LM317 output. I should take 1.25 to...
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