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
    • 982
    • 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
          • 982
          • 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
              • 8206
              • 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
                  • 982
                  • 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
                      • 6643
                      • 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
                          • 982
                          • 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
                            • double_DD
                              Philips curling iron - is this a common AC cable?
                              by double_DD
                              Hi all,

                              Wife has 2 Philips hair curling irons half defective - after learning how they're supposed to work and testing them, it turned out that both have defective power cables, and both on the same place; broken wires due to wire bending.
                              As they were both relatively easy to disassemble, and cables are plugged not soldered (as they can rotate in the handle), I was sure it would be easy to find replacements. But - NO! I'm unable to find anything similar on ebay or Aliexpress.

                              Not sure if this is something Philips proprietary, or a standard, but the cable plug...
                              08-18-2025, 10:04 AM
                            • janos6662000
                              Philips 47PFS7509/12 LCD TV problem
                              by janos6662000
                              Hi

                              I have here a Philips 47PFS7509/12 LCD TV which came to me with a weird problem : without signal i could access menu, make a factory reset, access menus, etc.
                              When i applied cable signal to check image, i had normal picture, but TV was restarting.
                              I downloaded original firmware and applied the update, but the problem remained.
                              From a colleague i received a "factory package software" which is a lot bigger.
                              I made another firmware update, but still did not solve the problem.
                              Somewhere on the way the error got worse, because at the moment the...
                              08-12-2025, 12:54 PM
                            • 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
                            • Loading...
                            • No more items.
                            Working...