Panasonic TH50PZ80U - power button

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • ultimatt
    Member
    • Apr 2015
    • 29
    • United States

    #21
    Re: Panasonic TH50PZ80U - power button

    Another question, for the fuse that failed can it fail due to an overload condition or short within the TV itself or can it only fail due to an overload or short from the main AC power input?

    Comment

    • ultimatt
      Member
      • Apr 2015
      • 29
      • United States

      #22
      Re: Panasonic TH50PZ80U - power button

      "Another question, for the fuse that failed can it fail due to an overload condition or short within the TV itself or can it only fail due to an overload or short from the main AC power input?"

      to clarify, the power (ac) board only connects to the main power board. The main power board also has a couple of fuses.

      What I am trying to determine all conditions which could cause one the two fuses on the power (ac) board to fail?

      I am trying to determine how to run a start up procedure since I don't know what if any faults this unit has.


      Thanks.

      Comment

      • tom66
        EVs Rule
        • Apr 2011
        • 32560
        • UK

        #23
        Re: Panasonic TH50PZ80U - power button

        The best thing to do is plug the TV in and watch it
        Fuses can sometimes blow without obvious cause. If it pops a fuse again, there could be another issue. For example PFC circuit might be malfunctioning causing higher RMS currents.
        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

        Related Topics

        Collapse

        • themosttogain
          HP Envy 13-BA1565na with intermittent power button
          by themosttogain
          Hope someone can give me some suggestions on this because i'm at my wits end with it...

          I have an Envy 13-BA1565na here with an Intel Core i7 i7-1165G7 CPU (board is a LA-J475P Rev 1.0) which has an intermittent power button issue. The power button is integrated into the keyboard, and I have ruled out the keyboard, BIOS and battery as being the issue.

          Basically, on mains power, the power button works fairly well. The first time you come to it after leving it sitting (either on charge or not on charge), it might take 2 or 3 presses of the button, but then the laptop boots...
          07-12-2024, 03:03 AM
        • 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
        • TimeRabbit07
          Asus FX517ZC charges but power button does nothing
          by TimeRabbit07
          Hi all!

          I've got an Asus FX517ZC on the bench at the moment and I just can't figure out what's going on with it.


          Here are its various numbers and identifiers:
          Model short: FX517Z
          Model long: FX517ZC-HN114W
          SN: NANRCX01S57842E
          CN: 3SDB 12M
          MFD: 2022-10
          Motherboard model: DA0NJLMBAE0 REV E


          Symptoms:
          The laptop's charge light comes on, but when the power on button is pressed nothing happens. No fan spin, no caps lock, no screen or keyboard backlight, nothing.


          History so far:
          The...
          09-04-2024, 05:48 PM
        • reessi
          Macbook Air - 2018 - A1932 - 820-01521-02 - Bootlooping if Power Button Connected
          by reessi
          Hello,

          With the power button connected it either boot loops with the apple logo or no display but the charging meter shows it looping on charging every few seconds.

          No corrosion any where!

          Tried a replacement power button off ebay and the same.

          Very occasionally it will work with the power button connected!

          Same results with or without the battery.

          Can it be a fault with the Audio board or the mainboard?

          The touch Id assembly connects through the Audio board first then to the Mainboard.

          Flex...
          06-26-2024, 03:31 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
        • Loading...
        • No more items.
        Working...