Channel blinky lights die!

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This topic contains 10 replies, has 5 voices, and was last updated by Profile photo of LKY LKY 6 years, 7 months ago.

Viewing 11 posts - 1 through 11 (of 11 total)
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  • #41312
    Profile photo of Lou
    Lou
    Participant

    In the middle of a gig tonight, the chanel 4 meters on my Qu-16 stopped working! I only noticed because the red peaks lights came 0n when someone fired up the Twin for a certain song. Has this happened with anyone else?
    I depend on those lights to see where to go for adjustments… Bummer!

    #41314
    Profile photo of eotsskleet
    eotsskleet
    Participant

    Do you use a compressor or Gate on that specific channel? What you see is the Output Level on this meter, but if you have a Clip before compressor then it might be correct that the Signal is clipping while the Output meter is not too loud! can you check this?

    #41316
    Profile photo of Lou
    Lou
    Participant

    No gates (thanks though!). I believe the channel indicators are pre-everything, though, if not it is wrong! I had no processors in that chanel on Friday’s gig, and the Twin was only played for the last couple songs…

    But an update: Friday it was no green lights on channel 4. Saturday they worked again, all three lights on Ch4. Today, I got the zero and the peaks but no sig light. It was on bass and I watched the singal in other meters, solo’dand on the screen, and it is just the one sig LED this time.

    I can even omagine it is a cold solder joint, if not the digital LED drivers.

    Grrr!

    <L>

    #41321
    Profile photo of Ken
    Ken
    Participant

    My QU-16 channel 2 is doing the same thing, green lights do not function, only a red when the signal peaks.

    #41323
    Profile photo of Lou
    Lou
    Participant

    Hmm, thanks. It is good to know but not really comforting to know you have it to. Have you asked about warranty repair?

    #41604
    Profile photo of Lou
    Lou
    Participant

    Followup: The channel 4 LEDS worked for half of the following gig, the second half, and have worked fine ever since. I keep an eye on them so just woinder how they could fail for only a gig and a half?!?

    #41656
    Profile photo of LKY
    LKY
    Participant

    Well,

    I’m thinking it’s either a loose connector…or a cold solder joint…

    Next time it quits…give it a jostle and see if it fires back up…it’d say smack it…but some people smack equipment too hard 🙂

    Ask ah if there is a cable/connector running to them…or a plug in board for each set…based on the layout I’d assume there is one or the other being so close to the fader location…

    #41658
    Profile photo of LKY
    LKY
    Participant

    Oops,

    By the Select section…not fader…

    #41671
    Profile photo of Lou
    Lou
    Participant

    “By the Select section…not fader…” actually right between them, so both are right!

    #41682
    Profile photo of Nicola A&H
    Nicola A&H
    Keymaster

    Hi Lou and Ken,

    Can you confirm this still happens when all channel processing (gate, eq, compressor) is off? The Input meter is post processing, so heavy compressor settings or a high gate threshold could easily be the culprit here. The Peak indicator on the other hand is multi-point – this was designed to warn the engineer of ANY peak along the signal path, and explains why you can sometimes see just the red LED lighting up.

    However if you are sure this wasn’t the case I’d recommend contacting our local distributor for servicing.

    Hope this helps.

    #41715
    Profile photo of LKY
    LKY
    Participant

    So,

    Dead LEDs or squashed audio signal…

    I’d like to know for one, if there is a possible issue with a component its always good to know, no one is perfect…and either way warranty would fix it for sure…

    But if it’s a. Loose connector, or wire…that’s an easy fix…

    Nic, it’s nice to know where the signal is coming from for all meters for reference…

    And putting it in say a tech doc or the manual would be great…

    I assumed before this post (wrongly I might add) all meters were post Pre on inputs…and post fader on outputs…and the comp bar was of course the negative of the main channel mix…

    LKY

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