apex 3288t, help with inverter

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • mattstolte
    Badcaps Veteran
    • Dec 2013
    • 612
    • usa

    #1

    apex 3288t, help with inverter

    Ok on this tv for my model my inverter is built in on my power supply. Mip320fl. Tv will turn on but no back lights. So my inverter isn't working. How can I repair the power supply to get the inverter working? I checked all my voltages on the power supply board and everything is correct except the two sides where they goto the bulbs under the panel there is no voltages going to either side. So id like to find out what to repair on the power supply?
  • truep
    Badcaps Veteran
    • Aug 2010
    • 373
    • USA

    #2
    Re: apex 3288t, help with inverter

    Don't measure the inverter voltages there! If the voltage had been there, You would have blown your meter. You need a schematic of the power supply. Check for a service manual at electrotanya, or maybe tom 66 can help.

    Comment

    Related Topics

    Collapse

    • 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
    • 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...
      11-22-2024, 01:46 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
    • lostone
      Looking for help with a Viewsonic VP230mb where the backlight comes on only momentarily
      by lostone
      Hello, I came here after finding some similar questions asked on other monitors and hope someone here can help me get an ancient Viewsonic VP230mp (23" 4:3 LCD) back to working condition.

      First a little background, I have a background in computer and electrical engineering, and I'm smart enough to know I know nothing about LCD displays and how they work. For this topic I'm as green as they come.
      When the display is turned on the viewsonic logo displays in the uppper left for 2 seconds then the screen goes black, the power LED is green (on) and when a computer is connected...
      05-19-2024, 11:40 AM
    • 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...