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Mackie M2600 Help - Short, Protect LEDs on

Discussion in 'Electronic Repair Modifications DIY' started by Seedlings, Jul 15, 2010.

  1. Seedlings

    Seedlings Active Member

    Mackie M2600 power amp.

    Channel 1 has 'Short' & 'Protect' LEDs continually lit
    Channel 2 has 'Short' LED continually lit
    Amp operates, tested for 2 hours continuous loud music

    What I tried so far:
    For ALL connectors (ribbon, spade) I opened each connection, sprayed De-OxIt, exercised the connection by plugging in, unplugging, plugging in.
    Reassembled the amp and the same LEDs are on, still operational.

    It was removed from service at church a couple of years ago because the LEDs stayed on.


  2. MrEase

    MrEase Active Member

    Clearly if the amp is operating correctly there must be faults in the monitoring circuits. To determine what these may be would be easiest with a schematic - if available. Otherwise you may be best to take this to a tech who should be able to trace the relevant sections and find the fault(s).

    Anyone have the M2600 schematics???
  3. Seedlings

    Seedlings Active Member

    I'm getting the schems from Mackie (after signing their disclaimer)... talked with mackie's tech on the phone who came to the same conclusion. We're going to use it tonight... fingers crossed.


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