I just bought this pedal(Mel9) used from a friend of mine who recently bought it. He gave it to me withought the EHX power supply, so I bought a universal AC/DC power block adaptor. Input: 120V AC 60hz 0.15A Output: 9.6V DC 200mA. I’ve had it for 5 days now. Worked fine until yesterday. The pedal turns on as in the light turns on, but there is no signal going to the amp from the input. I tried switching from Effect to Dry and vise versa to see if it was that. I checked my guitar lines and they are fine. I checked my guitar jack and the amp jack and they are fine. I troubleshot everything. It’s been 2 days. The pedal doesn’t work even though the light turns on. The previous owner tells me he never had problems. I need help.