Home › Forums › Help/Technical Questions › Help with micro synthesizer
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October 14, 2009 at 10:49 pm #79122GurdjieffMember
I purchased an EHX Micro Synthesizer for guitar on ebay. It’s the unit that has a 24V power supply and the switch on the right. I’ve had it for several weeks and experienced no issues. Suddenly, today, I plug it in and the power LED fades out. It appears dead and has no functionality. Beyond ordering a new PSU (from Musicians Friend) what can I do to troubleshoot the pedal?
October 15, 2009 at 2:14 am #102249The EH ManModeratorI’d open it up and check the power switch. Sounds like it may be coming apart from an external hit.
October 15, 2009 at 2:49 am #102255GurdjieffMemberThanks for the fast response. I’ll check the switch tomorrow.
October 15, 2009 at 2:08 pm #102275GurdjieffMemberI opened the case and checked the switch. I don’t see anything loose or disconnected. What do I need to do to verify it’s not the power supply?
October 17, 2009 at 3:53 pm #102379GurdjieffMemberRon-I found a photo of the inside of the Bass Micro Synthesizer. Comparing this pic to the inside of my Guitar Micro Synth, the wires are connected similar to my synth. Can I use this picture to help me check for loose connections? I’m sorry for the lame question. I’m new to this sort of thing (but eager to learn).
October 20, 2009 at 2:24 am #102433GurdjieffMemberI received the replacement power supply. Issue solved. My problem was a bad P/S. Everything works.
November 11, 2009 at 8:33 am #103622bassdownParticipantDear Reader,
I bought my EXH Bass Microsynth pedal new about 6 years ago and completely love it. Right out of the gates, one of the solder connections to my input jack snapped because the input housing kept coming unscrewed, and everything would shift/spin… snapped the solder. It seemed pretty clear what had happened, so I re-soldered it, glued the housing in place… worked great again… have since gigged with the pedal a ton over the last 6 years. However, the power just recently stopped working… light won’t go on, no sound, etc… so I thought the adapter might’ve died. However, I just got another power source, and my BMS still isn’t working. So… I opened the pedal, and here’s my question: there are two purple wires soldered to the inside of the power switch; one is soldered to 2 opposing poles on the switch… looks like it goes through one, runs to the other, and is soldered to both. However, the second purple wire is only soldered to one side… soldered to the hole it runs through, but the end is dangling in between the two poles… in the center of the switch. Is this likely the problem? It would appear both purple wires ought to be soldered to their two respective poles on both sides of the switches inside plate, correct? If not, does anyone have any other suggestions/ideas as to what this could be or how I would check it out? Do these power switches or power inputs ever just die and need to be replaced?
Thank you for your assistance… I would love to just quickly solder this other connection and throw this killer pedal back on the gig asap!! I just want to double check before soldering anything.
Thanks!!
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