bad inverter caps in vizio vx42l

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • mcsatan
    New Member
    • Jan 2014
    • 2
    • USA

    #1

    bad inverter caps in vizio vx42l

    Hey all,
    I have here a Vizio VX42L HDTV10A that i am working on for my neighbor. It was originally brought to me because it was giving signs of bad caps in the power board, which upon inspection was true.

    I replaced all of the caps on the power board and turned the tv on and now it all seems to work but the screen flickers.

    So I take the thing all apart again and search for other problems and find that all of the caps on both of the smaller boards (master/slave inverters?) on either side of the tv are popped.

    So my question is...if i were to replace these four caps, should that fix the flickering situation I have or is there something else I need to look for in addition to this?

    Thanks,
    Dustin
  • cheapie
    null
    • Jul 2010
    • 849
    • USA

    #2
    Re: bad inverter caps in vizio vx42l

    That would most likely fix it.

    Comment

    Related Topics

    Collapse

    • momaka
      Seasonic B12 BC-550 – barely 2 years old and with BAD CAPS already!
      by momaka
      I know I've been a little scarce lately (like the last 2-3 years), but I'm still here and still doing my thing with fixing PSUs.

      For today's considerations, I have a Seasonic B12 BC-550 [A551bcafh] 550 Watt ATX power supply for you (click on links for full size images).

      https://www.badcaps.net/filedata/fetch?id=3591771


      https://www.badcaps.net/filedata/fetch?id=3591772

      It's a modern ATX unit with fixed (non-modular) cables and an 80-plus bronze certificate. Here's the label:

      https://www.badcaps.net/filedata/fetch?id=359177...
      03-12-2025, 03:42 PM
    • x_orange90_x
      Vizio E55-E1 bad backlights or bad inverter?
      by x_orange90_x
      I just got this tv today and it appeared to have no backlight on. After taking off the rear cover and checking again in the dark I can see that MAYBE one quadrant is lit.. But still it's quite dim. I was going to check the LEDs with my tester, and I found LED 1 and LED 2 + pins on the wire from the inverter, but I couldn't identify a ground. Nonetheless I tried using a mounting screw on the inverter board and also the chassis as ground but regardless my tester reads 300 which is what it reads when there is no voltage draw.

      I don't know how exactly to test the inverter itself. Is it...
      01-29-2025, 09:24 PM
    • JFA
      Honda generator inverter 230v 1900uf caps
      by JFA
      I have a Honda generator with a faulty inverter. The inverter is encased in black resin with just the tops of a dozen small electrolytic caps and four 230v 1900uf electrolytic caps poking out of the top of the resin. The plastic cover of one of the 230v caps was burned off but there was no sign of bulging and the capacitor can was in good condition. The heat source looks likely to be from the outside rather than from the component itself but since the inverter is basically unrepairable, I chiseled away and removed the capacitor. I had to destroy the capacitor so had no chance to test it but it...
      11-28-2021, 03:30 AM
    • eryjus
      Heathkit IO-4205 Power Supply Caps
      by eryjus
      Hello,

      First, I am a complete noob with high voltage stuff. I'm learning, but I need help by someone looking over my shoulder.

      I recently came into posession of a Heathkit IO-4205 5MHz Dual Trace Oscilloscope. The documentation is copyright 1978. I'm told it works.

      I opened it up to check the caps before I applied power, and found the following black caps and wanted to know what they were. They are on the power supply board. I was able to read the name and model and came up with, "Nytronics 162J-1, 0.1uF, 20% tolerance, 2000VDC."
      ...
      05-10-2023, 11:21 AM
    • Paxman_Swede
      Identifying caps on an old Zoom 9000
      by Paxman_Swede
      Hello!

      I have two projects on my work bench. One is a friends dead JBL Xtreme speaker with a blown voltage regulator and corresponding bulged and shorted cap. That cap has clear markings so I know what replacement I need for it.

      The other project however is a whole different deal. It's a Zoom 9000 guitar effect from the 90th that has developed a devil hound howl when there is no input from the guitar. I'm guessing caps problem. So, since I don't really use this effect anymore I thought it would be a perfect project to learn on.

      I have studied the board and...
      01-14-2025, 09:51 AM
    • Loading...
    • No more items.
    Working...