Rebuilding a Panasonic ETX2MM702MF power supply

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • waitery
    Senior Member
    • Feb 2011
    • 69
    #1

    Rebuilding a Panasonic ETX2MM702MF power supply

    Hi all,

    I wanted to check to see if any of you had ever repaired/rebuilt a ETX2MM702MF power supply for a Panasonic Plasma television. Can you tell me if there is any standard part/parts to look for that represent a common failure with these boards? Fuses are all good and I have the ability, but have not started to test caps for ESR, as well as the diodes and fets with my Fluke, but wanted to see if there was a standard proceedure that a member might have before I forge ahead. Can you let me know?
    Tags: None
    • creativeguitar
      New Member
      • Jun 2011
      • 2
      #2
      Re: Rebuilding a Panasonic ETX2MM702MF power supply

      same here..
      any suggestions?
      did you get to fix it ?

        Comment

        • rustfarmer
          New Member
          • Sep 2011
          • 8
          #3
          Re: Rebuilding a Panasonic ETX2MM702MF power supply

          Sane here, but I am less knowledgeable and see no obviously burnt or blown parts. All caps look ok.

            Comment

            Previous template Next

            Related Topics

            Collapse
            • Tynan Dill
              Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?
              by Tynan Dill
              I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.

              Upon bringing it home and plugging it up, it showed a standby light.

              I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.

              The screen seems to blackout and stay black, but with a flashlight I can see the display.

              With my Playstation 4 connected via HDMI, and running a game I can hear sound.

              Assuming...
              ORIGINAL POWER SUPPLY BOARD
              7 Photos
              11-22-2024, 01:46 PM
            • sam_sam_sam
              Desoldering gun station modified to use a 18 volt @ 20 amp switching power supply
              by sam_sam_sam
              I have wanting to do this project for quite sometime now and I finally found a switching power supply that will work on this desoldering gun station ZD-915 that the original switching power supply took a shit and just was not worth trying to fix it because this switching power is not quite big enough to handle the heater element and the vacuum pump

              One note when I tested the switching power supply and the voltage control board I noticed that this desoldering gun heat up much faster than the original switching power supply which I was really surprised by to the point that I might buy...
              03-31-2024, 02:12 PM
            • sam_sam_sam
              Modification to a ZD-987 desoldering/soldering station using a external switching power supply
              by sam_sam_sam
              I have been working on this concept for quite some time now with limited success but recently I found a switching power supply that is setup for the voltage that this soldering station needs to operate at however it also needs part of the secondary circuit from the original switching power because you need several voltage rails

              I once tried to get a ZD-915 desoldering station to work on a 18 volt battery power supply but unfortunately things did not go well but I did find a work around but I might try this idea again but going at a little differently more about this another time...
              07-01-2024, 06:34 AM
            • sam_sam_sam
              Panasonic switching power supply daughter board has two 27uf @ 50 volt capacitors which I do not keep in stock
              by sam_sam_sam
              I did not have any 27uf @ 50 volt capacitors but one nice thing is that it has enough room for two capacitors in parallel a 22uf and a 4.7uf @ 50 volts 22 plus 4.7 equals 26.7uf which so very close to 27uf I will show some pictures of it sometime tomorrow

              This is one of the shit est boards I seen in a very long time and it was the daughter board the traces just lifting off the board I had to use the capacitor leads to repair the the traces and the main board is not any better because I had to repair several traces for the daughter board to the main board

              After all of...
              07-13-2024, 08:14 PM
            • JimBanville
              Definitive technology SC 2000 subwoofer amp's power supply clicking and popping
              by JimBanville
              The sub developed a constant popping every couple seconds from woofer and power LED flickering with nothing but wall AC connected. Connecting an audio cable didn't change anything. It doesn't play but a second or two of audio in between the pops.
              Opened it up and discovered the power supply is making a faint clicking or ticking sound.
              I measured the amp's output to the woofer and it pulses up to 50mv DC to be driver. The pulses coincide with the power supply ticking/clicking.
              I measured the power supply output going to the amp board and it too has this pulsing. Voltage cycles...
              09-13-2023, 07:21 AM
            • Loading...
            • No more items.
            Working...