Home Forums Help/Technical Questions My DMM died :(

Viewing 4 posts - 1 through 4 (of 4 total)
  • Author
    Posts
  • #77746

    And then came back to life :) Anyway, I hadn’t used it in about a month and I hooked it up (not on a board, by itself straight into the amp) and it worked for about a second and then just cut out. The signal still passed through and the power/overload lights still worked, but no effect. I messed w/ it for a little while trying to jump start it, but to no avail. I tried again about an hour later but w/ the same result. And then I tried one last thing- I turned all the knobs to zero and then back up and it suddenly came back to life. I used it w/ my looper for about an hour and it worked perfectly. Just wanted to know if anyone has any ideas about what happened- I’m a little bugged about it, although I’m happy that its working again. Fwiw, I bought it new a couple of years ago and its never been messed with. I talked to Fender&EHX4ever;about it and he suggested that the BBD chips may have overloaded? Anyway, thanks in adavance!

    #93362
    The EH Man
    Moderator

    My guess is that there’s a bad solder joint somewhere that got jarred loose and then back into contact.

    #93367
    puretube
    Member

    Had a similar DMM problem in for ambulant repair last week:
    he hadn`t played it for 2 years, and when he plugged it in after dusting it,
    it suddenly wouldn`t work anymore… (LEDs lit up, though – but no sound, he said).
    After opening, it was immediately evident:
    besides dusting, he had tightened the sockets… with the effect,
    that the di-out-socket soldertab had turned a quarter rotation,
    and touched the bare ground-wire…
    Tightened it once again in the correct position, and told him to screw on
    the bottom-plate again: “it will work now” – “but we`ll plug it into an amp to be sure”…

    Well: still no sound (not “on” & not “bypassed” – until I pulled the output-cable,
    which suddenly produced guitarsound from the amp for the tenth of a second…

    Screwing the DMM open again, and taking a closer look at the effect-out socket unplugged
    it showed nothing wrong…
    but: with the cable inserted, the tip-contact-clip almost invisibly touched the angled
    (diamondbox) enclosure, and thus shortening any signal to ground when slightly bent by
    the inserted jack!

    Same procedure as with the other socket: tightening it again in a proper position: WORX!

    #93456
    Quote:
    My guess is that there’s a bad solder joint somewhere that got jarred loose and then back into contact.

    Seems to be working fine since the other day- do you think I should have it serviced or leave it be?

Viewing 4 posts - 1 through 4 (of 4 total)
  • You must be logged in to reply to this topic.