I'm a trumpet player using the HD500, last week at a gig of course, it died. The sound guys said my mic level knob on the back was not working, because they found a way to send/return my sound, and still get the effects, something to do with the pre-amp in that knob or something. The next day, when I connected it to a powered speaker as well as a guitar amp to test it out with some guitar friends, it just screams static noise. Different from what happened at the gig.
I scrambled to get some regular individual guitar stomp pedals to get me through the rest of the week, and it worked out okay. Most if not all of my guitar friends are urging me to go with individual guitar stomp pedals at this point, and I may just do that.
Now that this has happened, I realized that my Tuner button had not been working very well for several weeks, so perhaps something had been going south in the unit. During the winter, I play outside at our local ski area every Saturday in blizzard conditions, minus 15 temps, high winds, sometimes a little rain. I keep the unit in a soft sided case to protect it from the elements, but it has certainly been exposed. 2 weeks ago, we played a garden party, and it rained on us. I didn't have my protective case, but I was able to keep the unit fairly dry. The patio we played on had a coating of loose sand on it. All the cords, monitors, speakers and other stuff on the ground were coated with this sand after it rained. I wonder if some sand got into the back of the unit where the mic level knob is....
Anyone know how I can decipher what it's doing now, into a repair job....? What kind of repair, how extensive, how much...? Just a stab in the dark, but thought I'd ask. I bought the unit in 2011, so 6 years was a good run, and I may decide to move on to individual pedals now that I've kinda refined my needs.
Thanks for any ideas, help, recommendations...