Announcement

Collapse
No announcement yet.

OLED65CX5LB PSU Feedback Loop Issues

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

    #21
    the photo i see around are almost low quality but i surely see no signs of variable voltages in different modes in serigraph

    Comment


      #22
      Replaced TL431 and no fix.

      Comment


        #23
        I think I found the solution here. I have ordered parts and will find out in the coming days.

        Comment


          #24
          I guess we have our guilty parts.

          Comment


            #25
            Changing those caps fixed it, but the relay doesn't turn off when the tv turns off.

            Comment


              #26
              Which brand did you use?

              Comment


                #27
                if the 12VM go back to 8.5V after you turn off the TV... then every things in good. dont bother.. but if VM remain high 12V.. not good

                Comment


                  #28
                  I have used wurth. The relay turns off most of the time now, but when the tv is off I hear reset clicks on the motherboard.

                  Comment


                    #29
                    MB will never make click

                    Comment


                      #30
                      Always check all parts for the power supply. The capacitors usually have loss. LG Thomas

                      Click image for larger version

Name:	grafik.png
Views:	256
Size:	3.2 KB
ID:	3318703

                      Comment


                        #31
                        Originally posted by thommyX View Post
                        Always check all parts for the power supply. The capacitors usually have loss. LG Thomas

                        Click image for larger version

Name:	grafik.png
Views:	256
Size:	3.2 KB
ID:	3318703
                        Thank you for this, will have to check all of these out as C601 and C602 were so bad.

                        The power supply seems to be functioning good so far. I think the relay doesn't turn off some of the times as the panel is doing pixel refresh. After 5-10 minutes I can hear it click off.

                        Comment

                        Working...
                        X