LCD Inverter Design

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  • delaware74b
    Badcaps Veteran
    • Apr 2009
    • 628
    • USA

    #1

    LCD Inverter Design

    I have recently started repairing LCD monitors and have noticed a common design flaw. If capacitors, especially those which are on this site's bad caps list, are heat sensitive, then why are manufacturers placing them directly above heatsinks? Both the Proview and Envision monitors I have worked on have the same flaw. I've noticed the same design on other images on this site.
    Stupidity should be a crime, especially for drivers. I have NO patience for them.
  • EGuevarae
    Badcaps Legend
    • Nov 2008
    • 1336
    • USA

    #2
    Re: LCD Inverter Design

    Originally posted by delaware74b
    I have recently started repairing LCD monitors and have noticed a common design flaw. If capacitors, especially those which are on this site's bad caps list, are heat sensitive, then why are manufacturers placing them directly above heatsinks? Both the Proview and Envision monitors I have worked on have the same flaw. I've noticed the same design on other images on this site.
    $$$
    There are 10 kind of people in this world: those that understand binary, and those who don't.
    • ASUS ROG Maximus IX Code
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      2 x Acer KA240H + 1 Vewsonic VP2130 21 (a cap replacement job )

    Comment

    • Krankshaft
      Badcaps Legend
      • Jan 2007
      • 2328
      • USA

      #3
      Re: LCD Inverter Design

      Built in obsolescence.

      In short they don't care. If it blows out in a few years you'll get another one.
      Elements of the past and the future combining to make something not quite as good as either.

      Comment

      • i4004
        Badcaps Legend
        • Oct 2006
        • 2029

        #4
        Re: LCD Inverter Design

        why would one assume all designers are smart people?

        Comment

        • Toasty
          Badcaps Legend
          • Jul 2007
          • 4171

          #5
          Re: LCD Inverter Design

          Originally posted by i4004
          why would one assume all designers are smart people?
          LOL!!

          Goes for some engineers too...
          veritas odium parit

          Comment

          • Bobdee
            Badcaps Veteran
            • Jun 2008
            • 461

            #6
            Re: LCD Inverter Design

            Originally posted by i4004
            why would one assume all designers are smart people?
            There smart allright thats why its done as you know, but thankfully people like you and others pick up on it and expose them to people like me and delaware74b and many others through the forum, thank you all
            Bob

            Comment

            • Toasty
              Badcaps Legend
              • Jul 2007
              • 4171

              #7
              Re: LCD Inverter Design

              Originally posted by Krankshaft
              Built in obsolescence.

              In short they don't care. If it blows out in a few years you'll get another one.
              Agree. Plus the fact that technology improves every day. You'll already be wanting to upgrade by the time the one you have takes a dump. 5 years ago you couldn't do 1/20th the things you can today... on your phone!

              "You want how much to fix my 3 year old monitor!?!"
              $75 plus parts
              "I can buy a new one for $125!!"

              ...and it has been that way for near 40 years.

              Toast
              veritas odium parit

              Comment

              • i4004
                Badcaps Legend
                • Oct 2006
                • 2029

                #8
                Re: LCD Inverter Design

                >LOL!!

                >Goes for some engineers too...

                goes for most people doing anything anywhere, really.
                once you open plenty of devices, you quickly figure out it wouldn't be THAT hard to make it last much longer than such a crappy design, or crappy choice of components...etc.

                they should write "designed by humans" somewhere....
                LOL!

                but yeah, would be a dull place if everything was perfect. what would we be tinkering with...

                Comment

                • everell
                  Badcaps Legend
                  • Jan 2009
                  • 1514
                  • USA

                  #9
                  Re: LCD Inverter Design

                  Can you imagine how the astronauts going to Mars will feel ... being blasted off into space on a rocket built by lowest bidder .... and the computers are designed to last only long enough to get there. So how do you get back to Earth? Just buy another computer!

                  Maybe we ought to take a look at Martian technology and see if they do it any better than we do here on Earth!!!
                  Old proverb say.........If you shoot at nothing, you will hit nothing (George Henry 10-14-11)

                  Comment

                  • Bobdee
                    Badcaps Veteran
                    • Jun 2008
                    • 461

                    #10
                    Re: LCD Inverter Design

                    "designed by humans"
                    I love it, brill

                    Comment

                    • Bobdee
                      Badcaps Veteran
                      • Jun 2008
                      • 461

                      #11
                      Re: LCD Inverter Design

                      Originally posted by everell
                      Can you imagine how the astronauts going to Mars will feel ... being blasted off into space on a rocket built by lowest bidder .... and the computers are designed to last only long enough to get there. So how do you get back to Earth? Just buy another computer!

                      Maybe we ought to take a look at Martian technology and see if they do it any better than we do here on Earth!!!
                      They go on about our carbon footprint, yet do little or nothing to the manufactuers that abuse us by expecting us to buy there replacment crap that is just going to last just past their guarantee
                      Bob
                      EDIT thankfully some of us can help ourselves to save the waste
                      Last edited by Bobdee; 12-13-2009, 07:34 PM.

                      Comment

                      • Bobdee
                        Badcaps Veteran
                        • Jun 2008
                        • 461

                        #12
                        Re: LCD Inverter Design

                        ANOTHER EDIT
                        Sadly it not enough

                        Comment

                        • i4004
                          Badcaps Legend
                          • Oct 2006
                          • 2029

                          #13
                          Re: LCD Inverter Design

                          >Can you imagine how the astronauts going to Mars will feel ... being blasted off into space on a rocket built by lowest bidder

                          it was a riot to find out nasa will be making capsules once again(like in the beginning http://en.wikipedia.org/wiki/Orion_(spacecraft) ) and that people like branson and virgin galactic will be flying people to orbit...

                          recently i saw documentary about zeppelin air ships..i think there's connection there somehwere...first time branson's "spaceship" falls it'll be the same fate as zeppelins...

                          >Maybe we ought to take a look at Martian technology and see if they do it any better than we do here on Earth!!!

                          yes, mars has perfect space technology, much better than ours that is such a gamble for humans; they don't fly at all!
                          (those few becteria that were left there from some comet...)
                          <wink>

                          Comment

                          • EGuevarae
                            Badcaps Legend
                            • Nov 2008
                            • 1336
                            • USA

                            #14
                            Re: LCD Inverter Design

                            Originally posted by everell
                            Can you imagine how the astronauts going to Mars will feel ... being blasted off into space on a rocket built by lowest bidder ....
                            with bad caps on them !
                            There are 10 kind of people in this world: those that understand binary, and those who don't.
                            • ASUS ROG Maximus IX Code
                            • Intel Core i5-7600K 3.8GHz
                            • 16gb GSKILL TridentZ RGB DDR4-3200
                            • 1 M2 SSD + 2 WD Blue 1TB (Mirrored)
                            • Windows 10 Pro x64
                            • GeForce GT1050
                              2 x Acer KA240H + 1 Vewsonic VP2130 21 (a cap replacement job )

                            Comment

                            • Toasty
                              Badcaps Legend
                              • Jul 2007
                              • 4171

                              #15
                              Re: LCD Inverter Design

                              Originally posted by everell
                              ...Maybe we ought to take a look at Martian technology and see if they do it any better than we do here on Earth!!!
                              Been mixing the with the again, have we??



                              Toast
                              veritas odium parit

                              Comment

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