Announcement

Collapse
No announcement yet.

LG 50PQ6000 went pop

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

    LG 50PQ6000 went pop

    Hi guys,

    just been reading through the 50pq6000 unstable 5v thread so im hoping Baileybum1234 or any one else might be able to check 2 voltages for me?

    The pub i DJ at has two of these and one went pop last night, done a few tv's before so figured this one would just be bad caps like most of the others

    strange thing is the psu is fine (from what i can see and on the meter)
    but the fuse has blown on the EAX60987801 (left hand board)

    the pin out from the PSU to this board is +VS, GND, +VA, GND, +5v
    when i turn the tv on after two relay clicks i get the following for a few seconds
    200vdc between the +VS pin and GND (this goes to a fuse thats blown)
    60VDC between the +VA pin and GND
    5VDC on the +5V
    a pulse like clicking can be heard from both the PSU and the EAX609 board befor the PSU shuts down probably due to no load on the +VS pin

    when you turn the tv on you get the red standby power led, press power button and it goes blue for a bit then fades away, psu needs to be left a while to reset its self

    just noticed there are 6 220uf 250v caps in the middle of this board, 3 have square edges to the top and 3 are curved and slightly taller but there all the same type of caps so i'll start there

    Regs
    Richard

    #2
    Re: LG 50PQ6000 went pop

    Can you post a picture of the suspect caps? Most likely, they are not a problem. The blown fuse on the y-sus points to some bad MOSFETs or other components. Maybe a bad buffer.
    Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
    For service manual, schematic, boardview (board view), datasheet, cad - use our search.

    Comment


      #3
      Re: LG 50PQ6000 went pop

      hi did you fix this problem with the tv

      because i have same tv and same problem

      would like to know what you did

      thanks look forward to a reply

      Comment


        #4
        Re: LG 50PQ6000 went pop

        Got a board coming this week so I'll let you know

        Comment


          #5
          Re: LG 50PQ6000 went pop

          Just seen your post I would of checked the voltages but my PSU blew again.
          Last edited by Baileybum1234; 02-05-2013, 01:52 PM.
          Repaired: LG50PQ6000

          Comment


            #6
            Re: LG 50PQ6000 went pop

            Mr_Bodgit, where did you order new board for your TV? I`m having the same problem so I`d like to order it to. Thanks.

            Comment


              #7
              Re: LG 50PQ6000 went pop

              Did it fix the problem?
              Repaired: LG50PQ6000

              Comment


                #8
                Re: LG 50PQ6000 went pop

                For anyone whos interested i fixed this problem by just replacing the ysus board

                would like to thank (mr bodgit) for his help

                Comment

                Working...
                X