Possible Magnavox 32md357b/37e purchase

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Paul678
    Badcaps Veteran
    • Nov 2011
    • 402
    #1

    Possible Magnavox 32md357b/37e purchase

    The owner says the picture looks perfect when it turns on,
    but that it only stays on for 15 seconds, and then shuts
    off by itself.

    Sounds like a power supply bad caps problem to me.

    This model has a built-in DVD player. 32" screen.

    How much would you all offer for this one?
    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: Possible Magnavox 32md357b/37e purchase

      $20 - could be inverter shut down
      Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
      For service manual, schematic, boardview (board view), datasheet, cad - use our search.

        Comment

        • Paul678
          Badcaps Veteran
          • Nov 2011
          • 402
          #3
          Re: Possible Magnavox 32md357b/37e purchase

          Originally posted by tom66
          $20 - could be inverter shut down
          So by this you mean the inverter itself shuts down,
          NOT the +24V coming from the power supply, right?

          What would cause the inverter to shut down in 15
          seconds like this? I would guess an overheating
          issue would take a bit longer.

          Over-current protection scheme?

          Would it be an easy and cheap fix?

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK
              #4
              Re: Possible Magnavox 32md357b/37e purchase

              Originally posted by Paul678
              So by this you mean the inverter itself shuts down,
              NOT the +24V coming from the power supply, right?

              What would cause the inverter to shut down in 15
              seconds like this? I would guess an overheating
              issue would take a bit longer.

              Over-current protection scheme?

              Would it be an easy and cheap fix?
              No idea, and no idea. Sorry. Never encountered it myself.
              Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
              For service manual, schematic, boardview (board view), datasheet, cad - use our search.

                Comment

                Previous template Next

                Related Topics

                Collapse
                • 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
                • huzo
                  HP Omen shuts down when loading OS
                  by huzo
                  The model is 15ec-1061nm
                  Board number is DAG3EDMB8D0​

                  SO i turn the laptop on , and as soon as it starts booting from disk, from usb, windows,linux,HBCD,anything i boot it just turns off....while in bios menu or in linux boot menu it stays on normally...It's like when it starts to use graphics it shuts down...But i measured 0.72V while working on the GPU power line,no excess heat is comming from GPU or CPU, i even removed the heatsink and turned the laptop on and everything worked fine, got a bit hot, fan span to full speed, but it worked like that for few minutes in bios...
                  10-29-2024, 12:05 AM
                • Giggle2562
                  Lenovo V15-IIL motherboard swap (in V15-IKB) shuts down when internal display is connected
                  by Giggle2562
                  Hello everyone,

                  I have a Lenovo V15-IKB that had a damaged motherboard. I replaced it with a motherboard from a Lenovo V15-IIL.

                  The board powers on, but it shuts down after about 10-15 seconds. This only happens when the internal display (LCD panel) is connected.

                  Here's what I've tried so far:
                  • When the internal display is disconnected, the laptop works perfectly fine via HDMI.
                  • The laptop shows an image on the internal display for a few seconds before it shuts down.
                  • I tried swapping the LCD panel with a known good one.
                  • I tried swapping the LCD cable
                  ...
                  11-06-2025, 12:36 PM
                • riko 656
                  Lenovo Legion Slim 5 16APH8 (RTX 4070) - Turns on for a few seconds then shuts off. BIOS issue.
                  by riko 656
                  Hello everyone,
                  I need help with my Lenovo Legion laptop. It turns on for a few seconds and then immediately shuts down. I believe this is a BIOS corruption issue.
                  Laptop Model:
                  • Model: Lenovo Legion Slim 5 16APH8
                  • GPU: NVIDIA GeForce RTX 4070
                  • Main BIOS chip size: 32MB
                  • VBIOS chip size: 16MB
                  Problem Description: The laptop was working perfectly. Now, when I press the power button, the keyboard lights up and the laptop powers on for just a few seconds, then it shuts itself off completely. After researching, I am convinced it's a corrupt BIOS.
                  What I Have Tried So Far:
                  1. I
                  ...
                  11-04-2025, 05:14 AM
                • brav1ez
                  ASUS FX505GD shuts off after POST — no BIOS, power button unresponsive
                  by brav1ez
                  Hello everyone,
                  I have an ASUS TUF Gaming FX505GD that's powering on, showing the ASUS logo for about 2 seconds with keyboard backlight, then immediately shuts off. After it shuts down, the power button does nothing until I unplug the laptop completely. No fans spin afterward either.

                  I’ve tried:
                  - CMOS reset
                  - Removing the SSD/HDD
                  - Reseating RAM (removing each stick individually stops boot completely)
                  - Cleaning up recently applied thermal paste around CPU/GPU and nearby VRM components (issue persists)

                  With...
                  09-07-2025, 10:47 AM
                • Loading...
                • No more items.
                Working...