Announcement

Collapse
No announcement yet.

LG 60pb5600 unidentified reboot

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

    LG 60pb5600 unidentified reboot

    Hi,

    I have a plasma TV that is sometime restarting for no reason.

    I replace the power supply and still have the same problem.

    If I unplug everything except the power supply and the main board.. still have the same problem.

    So, I conclude the problem is from the main board.

    I have redone all solder joint that was looking poorly but no change.

    Do you guys have any clue of wich part I should replace ?
    Attached Files

    #2
    Re: LG 60pb5600 unidentified reboot

    Look for cold solder joints on the PSU. Especially the components on the heatsinks and those transformer legs.

    Comment


      #3
      Re: LG 60pb5600 unidentified reboot

      I see shopjimmy has a main board repair kit, 2 larger ic's and the eeprom so maybe that would fix it?

      Comment


        #4
        Re: LG 60pb5600 unidentified reboot

        Is the eeprom coming pre-programmed? If it is then you can give it a try or you can look for a another Main Bd. I missed in your original post where you mention that you replaced the PSU already.
        Last edited by Andrew F. Ali; 10-15-2018, 12:04 PM.

        Comment


          #5
          Re: LG 60pb5600 unidentified reboot

          Thank you Andrew F. Ali

          R_J Yes I know ! but the fact that the problem is intermittent not sure if its ICS .

          Comment


            #6
            Re: LG 60pb5600 unidentified reboot

            Perhaps you have loose cable connector?

            Comment


              #7
              Re: LG 60pb5600 unidentified reboot

              Andrew F. Ali -> I dont think so. But to me a bad eprom will fail instantly not some times , not sure that is the problem. Is there a way to test it ?

              Comment


                #8
                Re: LG 60pb5600 unidentified reboot

                Andrew F. Ali -> cables are fine

                Comment


                  #9
                  Re: LG 60pb5600 unidentified reboot

                  Originally posted by olivier.gendron@gmail.com View Post
                  Andrew F. Ali -> I dont think so. But to me a bad eprom will fail instantly not some times.
                  I agree with you here. A cold solder in the CPU could cause this too. Do you have a Hot air Station?

                  Comment


                    #10
                    Re: LG 60pb5600 unidentified reboot

                    Originally posted by Andrew F. Ali View Post
                    I agree with you here. A cold solder in the CPU could cause this too. Do you have a Hot air Station?
                    .

                    No, but I tried with a heatgun twice, same problem, there is a lot of plastic component so wasnt that hot. I'm good at soldering, maybe i can try to carefully heat all the pins.

                    Comment


                      #11
                      Re: LG 60pb5600 unidentified reboot

                      That's a lot of pins that are very close together. Have you considered just getting another Main Bd. off e-bay or Amazon??

                      Comment


                        #12
                        Re: LG 60pb5600 unidentified reboot

                        This is not so bad ! I'll try and let you know

                        Comment

                        Working...
                        X