HP DV6-3030xt white screen, no lines

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  • nucleus
    Senior Member
    • May 2012
    • 64
    • Montenegro
    #1

    HP DV6-3030xt white screen, no lines

    I power it up and it shows white screen without any lines. no any sounds, power light is on, nothing flashes, voltage on every coil is ok, only +vga_core is 0.92v which is pretty low but in schematics is normal between 0.9v and 1v
    nothing on external display, with or without its main display.
    it seams to me like gpu problem, but not sure. anyone had something like this???
    Tags: None
    • nucleus
      Senior Member
      • May 2012
      • 64
      • Montenegro
      #2
      Re: HP DV6-3030xt white screen, no lines

      anyone ??? this is laptop very well known to all of you, someone must have similar failure?

        Comment

        • masud
          Badcaps Veteran
          • Jul 2011
          • 317
          • Bangladesh
          #3
          Re: HP DV6-3030xt white screen, no lines

          graphics(GMCH) problem.
          Reflow graphics chip.

          masud.

            Comment

            • spidey
              climbs
              • Dec 2012
              • 644
              • Cyprus
              #4
              Re: HP DV6-3030xt white screen, no lines

              i fixed hundereds of dv series hp laptops, but didnt see that fault. if you fix it, let me know whats wrong. Btw, did you try to press caps lock to see if the light is on /off. ?

                Comment

                • nichella14
                  Member
                  • Jan 2013
                  • 29
                  • Philippines
                  #5
                  Re: HP DV6-3030xt white screen, no lines

                  Nvidia ATI issue Black out

                    Comment

                    • nucleus
                      Senior Member
                      • May 2012
                      • 64
                      • Montenegro
                      #6
                      Re: HP DV6-3030xt white screen, no lines

                      Originally posted by spidey
                      i fixed hundereds of dv series hp laptops, but didnt see that fault. if you fix it, let me know whats wrong. Btw, did you try to press caps lock to see if the light is on /off. ?
                      I tried it now and it won't stay ON, just blink when I press button, and goes off when I release it.

                      also what I noticed now, when keyboard is connected and when put charger in, led light near jack won't light, it just flash once and goes off, and motherboard won't power on. When remove keyboard and connect charger, light is on and motherboard powers on. Also when I first connect charger, then put keyboard it powers on and light on charger jack is on.

                      I did reflow it, but no changes. Maybe southbridge is foulty????

                        Comment

                        • spidey
                          climbs
                          • Dec 2012
                          • 644
                          • Cyprus
                          #7
                          Re: HP DV6-3030xt white screen, no lines

                          How about always on voltages? and can you measure current consumption ?

                            Comment

                            • nucleus
                              Senior Member
                              • May 2012
                              • 64
                              • Montenegro
                              #8
                              Re: HP DV6-3030xt white screen, no lines

                              Originally posted by spidey
                              How about always on voltages? and can you measure current consumption ?
                              on choke 3.34v and 5.14v ALW, current was a bit tricky to measure because of third control pin on hp chargers but i got it. power sequence is like this:

                              turned off: 0.11a
                              turned on: 1.7a, 1.8a, 2.1a, 1.950a and holds it

                              this is just motherboard with display no other devices.

                              does anyone know what is this thing with keyboard and charging, because I saw that on at least 5 hp laptops

                                Comment

                                • nucleus
                                  Senior Member
                                  • May 2012
                                  • 64
                                  • Montenegro
                                  #9
                                  Re: HP DV6-3030xt white screen, no lines

                                  does this means something to you??? I didn't watched power sequence for this model until now so I don't know how unusual is this.

                                  maybe someone did

                                    Comment

                                    • spidey
                                      climbs
                                      • Dec 2012
                                      • 644
                                      • Cyprus
                                      #10
                                      Re: HP DV6-3030xt white screen, no lines

                                      Originally posted by nucleus
                                      on choke 3.34v and 5.14v ALW, current was a bit tricky to measure because of third control pin on hp chargers but i got it. power sequence is like this:

                                      turned off: 0.11a
                                      turned on: 1.7a, 1.8a, 2.1a, 1.950a and holds it

                                      this is just motherboard with display no other devices.

                                      does anyone know what is this thing with keyboard and charging, because I saw that on at least 5 hp laptops


                                      0.11 is too high for standby. also the others, i think you have battery installed. please remove it and post the new results.

                                        Comment

                                        • nucleus
                                          Senior Member
                                          • May 2012
                                          • 64
                                          • Montenegro
                                          #11
                                          Re: HP DV6-3030xt white screen, no lines

                                          Originally posted by spidey
                                          0.11 is too high for standby. also the others, i think you have battery installed. please remove it and post the new results.
                                          my mistake 0.011A, no battery installed

                                            Comment

                                            • nucleus
                                              Senior Member
                                              • May 2012
                                              • 64
                                              • Montenegro
                                              #12
                                              Re: HP DV6-3030xt white screen, no lines

                                              Originally posted by nucleus
                                              my mistake 0.011A, no battery installed
                                              ok, nobody knows for white screen, but somebody must know this thing with charging and keyboard. what is connection between charging and keyboard ???

                                                Comment

                                                • spidey
                                                  climbs
                                                  • Dec 2012
                                                  • 644
                                                  • Cyprus
                                                  #13
                                                  Re: HP DV6-3030xt white screen, no lines

                                                  Originally posted by nucleus
                                                  on choke 3.34v and 5.14v ALW, current was a bit tricky to measure because of third control pin on hp chargers but i got it. power sequence is like this:

                                                  turned off: 0.11a
                                                  turned on: 1.7a, 1.8a, 2.1a, 1.950a and holds it

                                                  this is just motherboard with display no other devices.

                                                  does anyone know what is this thing with keyboard and charging, because I saw that on at least 5 hp laptops
                                                  reflow your gpu.

                                                    Comment

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