GVA 50FDLED slow to turn on

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • maxvalutech
    Badcaps Veteran
    • Dec 2014
    • 804
    • australia

    #1

    GVA 50FDLED slow to turn on

    This set given to me is in nice condition and shows a reasonable picture but, of course, its a cheaper Chinese generic given an "in house" brand name.
    It was all scrambled in picture settings at first but soon got that right but did notice set was slow to turn on at times and that has now gotten worse taking 5 to 10 minutes.
    Pulled the back off and what do I get but almost the most stupid design arrangement yet seen. How can I possibly test anything. As it turns out though after taking out both power and main boards a slight swelling is seen on a dozen of the infamous capXon. Replacement should fix the problem but this post is mainly to highlight how difficult it is becoming to work on some of these sets.
    Attached Files
    Last edited by maxvalutech; 07-20-2017, 06:52 PM.
  • tw2005
    Badcaps Legend
    • Oct 2011
    • 6457
    • Australia

    #2
    Re: GVA 50FDLED slow to turn on

    You would think a recap would be the answer. yeah I have my preferred sets to work on.

    You should be so lucky to have so much to play with.

    Comment

    • dskall
      Badcaps Legend
      • Oct 2016
      • 2905
      • usa

      #3
      Re: GVA 50FDLED slow to turn on

      Ya I have my preferred sets and they sure as hell aren't plasmas. Give me LCD anyday
      I assume no responsibility for any stupid suggestions I might post.

      Comment

      • maxvalutech
        Badcaps Veteran
        • Dec 2014
        • 804
        • australia

        #4
        Re: GVA 50FDLED slow to turn on

        I've had good luck with plasma but all Samsung or derivative thereof mainly due parts available at reasonable prices from overseas. These recent sets can be a pain though I just had a TCL 42" where main was in its own tin box in a recess on outside of back cover and power board in an adjoining recess both with their own covers. The leads of course all have to go thru access holes and as problem was inverter had to pull all apart then take chance fixing in new inverter then reassemble all for test with fingers crossed. Was ok though thank heavens. The influx of tv's I got is over for another year but did get 16 with some horse trading - now down to 6 left and mainly the hard ones with difficulty finding info and parts.

        Comment

        • maxvalutech
          Badcaps Veteran
          • Dec 2014
          • 804
          • australia

          #5
          Re: GVA 50FDLED slow to turn on

          Continue to have problems with this set taking own time to turn on. What happens now is switch on at pp and red standby light comes on but then no reaction to set controls or remote for about 3 minutes just a solid red standby, after the wait it will then react to input by turning green but without anything else happening, no clicking no nothing, until anywhere for 5 to 15 minutes when logo then appears and set starts from which time all becomes normal and response to remote or other inputs is immediate. Terrible set to work on as power and main mounted in back cover one right way up the other upside down whereas tcon is on body of set itself as is ir. I have a few ideas such as cold joint on main , possible Eeprom issue (not likely to find any firmware though), or ir board itself. Has anyone run into this type of problem??

          Comment

          • dskall
            Badcaps Legend
            • Oct 2016
            • 2905
            • usa

            #6
            Re: GVA 50FDLED slow to turn on

            Voltages coming right up? Do heating components hasten the start up?
            I assume no responsibility for any stupid suggestions I might post.

            Comment

            • maxvalutech
              Badcaps Veteran
              • Dec 2014
              • 804
              • australia

              #7
              Re: GVA 50FDLED slow to turn on

              Thanks for the input I gave it a try and best guess is that set takes longer to turn on. What I find unusual is no response at all from standby light when buttons activated - the Eeprom can't be involved as it won't get its voltage until power board is activated. I'm just going to have to try and test what voltages are doing before and after but difficult to do as will have to "float" main and be crammed up between back of set and set itself , not keen on having power board swinging loose. Should also mention that turning set off and back on again straightaway makes no real difference as again it just takes its own time to activate.
              Last edited by maxvalutech; 08-03-2017, 08:20 PM.

              Comment

              • dskall
                Badcaps Legend
                • Oct 2016
                • 2905
                • usa

                #8
                Re: GVA 50FDLED slow to turn on

                Your voltages are all good when you hit power button
                I assume no responsibility for any stupid suggestions I might post.

                Comment

                • maxvalutech
                  Badcaps Veteran
                  • Dec 2014
                  • 804
                  • australia

                  #9
                  Re: GVA 50FDLED slow to turn on

                  When I get it setup so that I have all connected but reasonably accessible (50" set) will then check starting with ir board voltage and input voltage drop/s, then see if standby reacts by dropping and if any return comes from main to turn power board on. Set is closed up and have had it running for a few hours - once going it is quite happy with no tendency to shut off or otherwise stop or play up so other voltages must be ok once activated.

                  Comment

                  • dick_barton
                    Badcaps Legend
                    • Aug 2015
                    • 6642
                    • Wales

                    #10
                    Re: GVA 50FDLED slow to turn on

                    The power supply is full of CapXOn capacitors which I believe most people replace since they have a tendency to go bad.
                    Have you tried to heat up area's of the boards to see if it powers up quicker?
                    Willing to help but I'm no expert.

                    Comment

                    Related Topics

                    Collapse

                    • gjlpereira
                      MacBook Pro A1708 - CPU extremely slow, locked @ 0.39ghz; fan full speed
                      by gjlpereira
                      Hi forum.

                      I'm working on a macbook pro, model a1708, that is running extremely slow.

                      Everything on it seams to work just fine, it just works extremely slow; painfully slow; especially running macos (windows and linux actually run OKish on it, slow, but usable).
                      One other symptom of the problem with the machine is that the fan is always running at full speed.

                      This machine has been worked on by someone else previously; they tried to repair it, but with no success. The motherboard does have sings of being worked on, but it all looks good/OK; like...
                      09-06-2022, 07:45 PM
                    • nissimezra
                      HP Notebook 15-dy1731ms VERY SLOW
                      by nissimezra
                      Hi to everyone.

                      I never seen something like this. I have HP Notebook 15-dy1731ms motherboard: DA0P5DMB8CO REV C that is very very slow. I tried all the basic, updating the bios, replacing ssd, replacing ram, soldering all coils, reflow CPU power supply but the laptop is still very very slow. Never seen a motherboard that is slow. CPU power suppliers 1.8 volts, the cpu barely getting hot.

                      What left for me to do is reflow the CPU and try manually programing the bios chip with programer.

                      Anyone have any idea what it can be?
                      04-13-2023, 02:45 PM
                    • EthanMai
                      DELL PRECISION 3440 SFF X4N41 10th ST-3L0GZB3 25Q256 Slow startup, needs cleaning.
                      by EthanMai
                      DELL PRECISION 3440 SFF X4N41 10th 25Q256 Slow startup

                      ST-3L0GZB3

                      needs cleaning.

                      Please help me clean up the slow startup dump if you have time. Thank you....
                      07-05-2024, 11:43 AM
                    • mo000
                      ACER CONECPT D VERY SLOW
                      by mo000
                      Hi
                      acer concept d intel i7 11th GH67G LA-L211P REV 1A 17-03-2021
                      the laptop dead by water on keyboard
                      i open the laptop i don't find any water on the motherboard or any damage
                      the laptop turn on without battery
                      i found shorted mosfet on smbus battery i remove it the laptop turn on with a battery but not charging
                      the big problem is the laptop is very slow
                      cpu works with low speed almost 0.7ghz
                      i do clean me bios but samething
                      what make laptop works with low profile and very slow the display takes long time.
                      06-10-2024, 04:27 AM
                    • resistor83
                      Macbook pro 15" 2011 A1286 stuttering and slow
                      by resistor83
                      hi all, I have a problem with my macbook pro 15 inch, late 2011 with SSD, AMD Radeon HD 6770M dedicated video card and Intel HD 3000 integrated card.

                      I use the computer occasionally at home and a few weeks ago I noticed that the battery was charging very slowly, I changed the power supply with a new original one and the problem remains. I also changed the battery to a compatible one and the problem persists. Now for a few days I have also noticed that the computer after a few minutes from starting it jerks and becomes very slow. However, this problem arises in several ways:
                      ...
                      02-09-2023, 03:19 AM
                    • Loading...
                    • No more items.
                    Working...