Trident 65 series modifications

Discussion in 'Tech Talk - Electronic Repair Modifications DIY' started by Dionysus Konstantinidis, Nov 29, 2018.

  1. Dionysus Konstantinidis

    Dionysus Konstantinidis Active Member

    Joined:
    Nov 29, 2018
    Location:
    Greece
    Hello,
    I'd really appreciate recommendations on modifying a trident 65 series power supply
    plus any recommendations on replacing op amps or power capacitors if someone actually had 'em done and experienced improvements on the sound. My tech is very good with anything on his field, with is fixing any sort of electronic equipment, but has no recommendations to make, in this case. Thanks
     
  2. Boswell

    Boswell Moderator Distinguished Member

    Joined:
    Apr 19, 2006
    Location:
    UK
    Home Page:
    Is your question that your power supply works as normal, but are there modifications to it you can make that would improve the sound quality from the mixer? What channel count do you have on the mixer? Are you also asking about modifications or component replacements to the channel strips on the mixer itself?

    There's a GS thread on PSU upgrades for this mixer series, but I guess you have already seen that.
     
  3. Dionysus Konstantinidis

    Dionysus Konstantinidis Active Member

    Joined:
    Nov 29, 2018
    Location:
    Greece
    Thanks a lot Boswell and no I haven't seen the Gs thread.
     
  4. Dionysus Konstantinidis

    Dionysus Konstantinidis Active Member

    Joined:
    Nov 29, 2018
    Location:
    Greece
    my channel count is 24 inputs 16 tape returns and 8 busses. I am basically asking for modifications on the power supply.
    I own this console for 3 years and the last owner had done all the maintenance on the channel strips and the master.
    Since one month I am getting noise on my master output both the"remix master" and the master output. The direct outs are clean though.
    I troubleshooted almost everything I could and after cleaning the power supply with a blower I realised that most of the noise , if not all of it was gone. the console sounded clean for some hours and
    then it started making noise again. I would really be interested in spending some money ,hopefully not much, in changing parts on the power supply.
    Thanks
     
  5. Boswell

    Boswell Moderator Distinguished Member

    Joined:
    Apr 19, 2006
    Location:
    UK
    Home Page:
    My guess is that the air jet made a small mechanical change that temporarily affected a component or a joint.

    Does your tech have an oscilloscope? It would be worth looking at the +/-18v rails a.c. coupled on a 100mV/div range to check for instability. It's possible that the electrolytics in the power supply need replacing.
     

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