Magnavox 32md359b/f7 on then off

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • freakaftr8
    Badcaps Legend
    • Oct 2012
    • 3743
    • USA
    #1

    Magnavox 32md359b/f7 on then off

    Ok long story short. Picked up this magnavox (funai) lcd tv with built in DVD player. Turns on the. Off in 3 seconds. Researched issue down to the inverter. Checked all components on the inverter including chokes and transformers and fets diodes resistors etc. looked this issue up online and people just replace the inverter and cured the problem.
    Not me. It was 30 bucks so after checking ccfls I said screw it. I clipped the shutdown protection on the inverter. Powered up and works great.
    Hmmmm so what's this about?
    Did I leave the soldering iron on?
    Tags: None
    • BlkSmth
      Senior Member
      • May 2010
      • 89
      #2
      Re: Magnavox 32md359b/f7 on then off

      Originally posted by freakaftr8
      Ok long story short. Picked up this magnavox (funai) lcd tv with built in DVD player. Turns on the. Off in 3 seconds. Researched issue down to the inverter. Checked all components on the inverter including chokes and transformers and fets diodes resistors etc. looked this issue up online and people just replace the inverter and cured the problem.
      Not me. It was 30 bucks so after checking ccfls I said screw it. I clipped the shutdown protection on the inverter. Powered up and works great.
      Hmmmm so what's this about?
      So where do I clip mine? Thanks in advance!

        Comment

        Previous template Next

        Related Topics

        Collapse
        • 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
        • Gentian
          APSINT3636VR 3600W APS INT Series 36V DC 230V AC Inverter/Charger schematic
          by Gentian
          I have a tripp-lite aspint 3636vr inverter charger which blow some of mosfet transistors. I replaced them repaired also the driver circuit and tested but the mosfets burn again.

          It work very well as inverter and also as charger if I let the rear switch in auto mode (inverter) and charger only(charging) but in auto when I connect the feed line 220V AC first time it pass ok to line and start charging the batteries but when I remove the feed line it pass to inverter mode and if I do it again the second time when passing from charging to inverter the Main transformer start making a...
          03-06-2023, 07:07 AM
        • valvashon
          Insignia NS-LCD19-09 (PS OK, Inverter problem?)
          by valvashon
          For some reason I'm just not going to let this 19" TV defeat me. I guess because I have a schematic to work from I feel like I'm oh so close.

          History- while adding a turn-on circuit I let a small screw roll under the power board. Worked through all of that circuitry, probably replacing a MOSFET and PWM controller that were not bad but I was following the service manual. Finally figured out that the power supply is in working order when the inverter section (for the backlights) is disconnected. When the +12 supply to the inverter is disconnected the +12 and +5 will come up...
          1 Photo
          01-04-2024, 01:44 PM
        • tonybig10
          Magnavox MDR515H/F7 And Magnavox MDR537H/F7
          by tonybig10
          Hi is any one can help me on getting the Schematics for Magnavox MDR515H/F7 And Magnavox MDR537H/F7 PDF file thank you I really appreciate it. Just need to change some component on
          the main board and the power supply board. I looked all over for the internet and I cannot find the Schematics sheet for both of them. I don't know where else to look I hope someone can help me...
          03-07-2025, 01:03 PM
        • eccerr0r
          A modified sine wave inverter + a grid tie inverter?
          by eccerr0r
          If I had a solar fed grid tie inverter (GTI), a modified sine wave inverter, and a power outage occurred, what would happen if you disconnected mains, backfed the modified sinewave inverter (MSI) into house power, and hooked up the GTI to the output of the MSI, would it work?

          Next thing is trying to charge the batteries using solar power, but that's another issue ...
          08-31-2023, 09:14 PM
        • Loading...
        • No more items.
        Working...