Announcement

Collapse
No announcement yet.

Mackie 1400i

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    Mackie 1400i

    Hi guys got this one from a coworker to fix, downloaded a great service manual (major props to Mackie for actually wanting these to be fixed)
    after testing I have a big list of replacement parts but had a question about the resistors on the base of the main transistors, about half of them are open. The SM specs them as 2.2 ohm .25 watt fusible and I am having a difficult time sourcing a replacement. Is it safe to use a regular metal film resistor in this instance?
    Also one of the main filter caps has a reddish substance on the top that looks like it is leaking but seems to pass other tests, they are on back order until march. I'm not positive if its bad or not anyone seen similar leakage from these? I'm wondering as it doesn't look like the electrolyte I normally see leaking?

    Parts list so far
    r7, r13, r15, r29, r33, r34, r36
    q28, q42, q15
    d19, d20, d88, d89
    c12
    f4, f5
    Attached Files
    Liberating magic smoke one part at a time

    #2
    Re: Mackie 1400i

    You can use MOX Flame proof resistor for the 2.2 Ohms.
    Never stop learning
    Basic LCD TV and Monitor troubleshooting guides.
    http://www.badcaps.net/forum/showthr...956#post305956

    Voltage Regulator (LDO) testing:
    http://www.badcaps.net/forum/showthr...999#post300999

    Inverter testing using old CFL:
    http://www.badcaps.net/forum/showthr...er+testing+cfl

    Tear down pictures : Hit the ">" Show Albums and stories" on the left side
    http://s807.photobucket.com/user/budm/library/

    TV Factory reset codes listing:
    http://www.badcaps.net/forum/showthread.php?t=24809

    Comment


      #3
      Re: Mackie 1400i

      Still coming up empty, closest thing I can find is 1/3 watt. Im not sure how close the tolerances have to be on these? I do have a gob of mox resistors, but not sure if they are flameproof, I guess I could try to burn one up and see if it flames or not.
      Liberating magic smoke one part at a time

      Comment


        #4
        Re: Mackie 1400i

        Metal Oxide resistors are Flame proof.
        1/3 Watt will be fine, that is an odd Wattage rating.
        Never stop learning
        Basic LCD TV and Monitor troubleshooting guides.
        http://www.badcaps.net/forum/showthr...956#post305956

        Voltage Regulator (LDO) testing:
        http://www.badcaps.net/forum/showthr...999#post300999

        Inverter testing using old CFL:
        http://www.badcaps.net/forum/showthr...er+testing+cfl

        Tear down pictures : Hit the ">" Show Albums and stories" on the left side
        http://s807.photobucket.com/user/budm/library/

        TV Factory reset codes listing:
        http://www.badcaps.net/forum/showthread.php?t=24809

        Comment

        Working...
        X