Question regarding MP1584EN IC

Discussion in 'Electronics Resources' started by Peter5510, Jan 19, 2014.

  1. Peter5510

    Thread Starter New Member

    Jan 19, 2014
    2
    0
    Hi All,
    This is my first post in this forum. Since this is my first post, I don't think I can post a link to the datasheet. This IC is on driver board of an Acer LED monitor. One of the zener diodes connected to this IC is shorted. I check the IC with multimeter and pin1 is shorted to ground. Is this IC still OK ?

    Thanks in advance.
     
  2. crutschow

    Expert

    Mar 14, 2008
    13,003
    3,232
    Where is the zener connected to the IC?

    If pin 1 is shorted to ground then the IC would appear to be zapped.
     
  3. Peter5510

    Thread Starter New Member

    Jan 19, 2014
    2
    0
    Thanks for your reply.

    The zener diode is connected to Pin 1. I desolder the zenered diode and it measured OK with a multimeter. This leads me to think that the short lies elsewhere. Anyway, I replaced the MP1684EN IC but it didn't fix the problem. Nearly killed the board because I didn't fully desoldered the ground pad of the IC. :(
     
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