Philips 58PFL9956T difficulties to start

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • PowerAmpFreak
    Badcaps Veteran
    • Feb 2010
    • 977
    • Sweden
    #1

    Philips 58PFL9956T difficulties to start

    Hi all
    I got this Philips LED-tv 58PFL9956T which is hard to start, especially when it's cool. Symptoms like bad cap but impossible to find any signs of that.
    Please see the attached pictures.
    Maybe some of you have diagnosed this powersupply some time already.

    This is how it behaves:

    1. First attempt to start - 3 blinks on led continously...
    2. After a few tries the backlight might be turned on - and shut down after a second or two.
    3. After a few more tries it can actually be on forever.

    Appreciate any advice!
    Attached Files
    Tags: None
    • mikail13
      Senior Member
      • Aug 2013
      • 93
      • Turkiye
      #2
      Re: Philips 58PFL9956T difficulties to start

      is it like that?

      https://www.badcaps.net/forum/showthread.php?t=57443

      https://www.youtube.com/watch?v=DS5l...ature=youtu.be

        Comment

        • PowerAmpFreak
          Badcaps Veteran
          • Feb 2010
          • 977
          • Sweden
          #3
          Re: Philips 58PFL9956T difficulties to start

          No, not at all.
          In my case, looks to be a PSU in pretty good shape , but similair symptom like a bad cap.
          Something is bad when cold. After PSU heat up , "something" is working better.

            Comment

            • CapLeaker
              Leaking Member
              • Dec 2014
              • 8133
              • Canada
              #4
              Re: Philips 58PFL9956T difficulties to start

              What happens if you heat the PSU up with a hair dryer, before you turn it on?

                Comment

                • PowerAmpFreak
                  Badcaps Veteran
                  • Feb 2010
                  • 977
                  • Sweden
                  #5
                  Re: Philips 58PFL9956T difficulties to start

                  Tried that with a heatgun. Can't find an area on the PSU, which gives a difference to behaviour.
                  It's tricky. Most of the control circuitry is SMD and may be shielded from heat due to big components on top side.

                    Comment

                    • dick_barton
                      Badcaps Legend
                      • Aug 2015
                      • 6642
                      • Wales
                      #6
                      Re: Philips 58PFL9956T difficulties to start

                      What are the solder joints like on the reverse side of the power supply PCB? Do they have riveted joints which can prove troublesome.
                      Willing to help but I'm no expert.

                        Comment

                        • PowerAmpFreak
                          Badcaps Veteran
                          • Feb 2010
                          • 977
                          • Sweden
                          #7
                          Re: Philips 58PFL9956T difficulties to start

                          I've went through some of the solderjoints on the two mains transformers. There is a noise coming from this part of the powersupply, crackling sound.
                          I've had NO luck to find anything which changes the behaviour of this powersupply.

                          It also can start up directly when cold sometimes, so it's not fully heat dependent

                            Comment

                            Previous template Next

                            Related Topics

                            Collapse
                            • G33RT
                              Philips 8200 series 65PUS8204/12 stuck at Philips Logo
                              by G33RT
                              Philips 8200 series 65PUS8204/12 stuck at Philips Logo, it does not reboot it just stays on the logo.

                              It does power up when pressing the power button.

                              I already try the power button while plugin the plug with no result.
                              Also put the latest firmware autorun-TPM191E_R.001.004.100.000.upg on a MBR/FAT32 USB stick at USB port2 with no result either.

                              Could this be an PSU or eMMC issue ?
                              07-19-2025, 03:43 AM
                            • aidanmo
                              Philips 43PUS7506/12 - Loud blown out sound
                              by aidanmo
                              Hello,

                              I've got a really strange issue with the speakers on my Philips 43PUS7506/12. It makes this awful loud buzzing now. It happened after it was attempted to be wall mounted - I think the back got squeezed and something broke.
                              I thought maybe the speakers got damaged, so I replaced them - no dice.
                              • Using the internal speakers, it always happens.
                              • Using the headphone jack, it never happens.
                              • Using the digital/optical out with a soundbar - it happens after about 2h/movie runtime - it's never as drastic, it just pops in and out, but I didn't want it to damage the sound bar
                              ...
                              02-28-2025, 03:13 PM
                            • Cornito
                              Philips 50PUH6400 bad color and gosting / slow motion on one side
                              by Cornito
                              Hello Team,

                              New issue on LCD panel where I need to find out the cause and the potential solution.
                              This is on the Philips 50PUH6400, the LCD panel is an INNOLUX V500dk2 xrs1.

                              I have image, on the right side, the image is more or less normal even if there is a small blur on edge, on the left there is an issue.
                              When moving up and down in the menu on the right the image is slow to disappear, and is darker, like red/brown.

                              I've checked voltages, no issue found comparing right and left side of the panel driver.
                              VHG VGL CKV... are the sames on...
                              03-08-2024, 06:41 AM
                            • spantor
                              Activate power board Philips 40PFH40009/88 tv
                              by spantor
                              Hello partners.

                              Could someone tell me how to make this Philips TV source work without the mainboard being connected? The model of the board is EAX65423701 (2.1) and the model of the Philips TV is 40PFH40009/88.
                              The TV is dead, there is no standby light, however there is a voltage of 12v on the pins ( included 12v VAU ) and 3.2v on the PS-ON pin (see photo) when the power board is connected to the main board. If I disconnect both boards I only get 8 volts on 12v pins. I would like to rule out a fault in the main board by making it work, but so far no one has been able to tell...
                              02-11-2024, 05:07 PM
                            • tuner2000i
                              Philips 65PUS8518/12 distorted image after main board replacement
                              by tuner2000i
                              hello everyone,

                              I don't normally do tv repairs but this is a case with my personal TV which got fried together with many other electronics in my house after a thunderstorm.

                              The TV is a Philips 65PUS8518/12 which had no power. I measured and concluded that the main board was probably fried through ethernet or hdmi. I found a board with same number 715GD328-M0F-B00-005Y (I had G) but from a 55PUS8518. The TV starts but the image is doubled, distorted. I need to set the panel code which is 016 according to the sticker on the back but I can not seem to do it.

                              ...
                              07-15-2025, 01:15 PM
                            • Loading...
                            • No more items.
                            Working...