Compaq 6735s led flash then shutdown

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  • Scootie
    Senior Member
    • Feb 2014
    • 133
    • Romania

    #1

    Compaq 6735s led flash then shutdown

    So I bought this laptop for pieces and repair.
    With its original cpu a TMDL56HAXSCT at start up a led near bios the battery, 2 leds around the charing port flash one time, the cooler spins once then the system shuts down.
    I reballed the nb(216-0674026) and the sb but the problem persists. The nb by contact is not hot.
    Then I changed the CPU with a AMP340SGR22GM which comes from a personal working laptop and the following happens.
    System boots up, I got battery bios led and charging port leds flash, cooler stays on and a led near the vga flashes interminently but still no vga signal. After a few seconds the gpu feels pretty for the touching.

    I wonder if the first CPU and the gpu are burned.
  • dellxps15
    Badcaps Legend
    • Feb 2014
    • 1585
    • italy

    #2
    Re: Compaq 6735s led flash then shutdown

    6735s have vga problem

    Comment

    • Scootie
      Senior Member
      • Feb 2014
      • 133
      • Romania

      #3
      Re: Compaq 6735s led flash then shutdown

      In the end I found out the that cpu might not be compatible with the laptop, someone before must have changed it and the blinking led near the battery bios and vga output means that the gpu is gona and needs replacement.

      Comment

      • dj_ricoh
        Badcaps Legend
        • Jan 2013
        • 2073
        • uk

        #4
        Re: Compaq 6735s led flash then shutdown

        I got 2 like this at home. they had video problem. one had a lot of flux near gpu if could take it down I can use it for half a year.
        and a 3rd one that splits the screen in 6 but I did not had time for it.
        Just cook it! It's already broken.

        Comment

        • Alfa is auto
          Senior Member
          • May 2013
          • 83
          • Finland

          #5
          Re: Compaq 6735s led flash then shutdown

          Strong feeling that ati hd3200 needs help..

          Comment

          • sopik78
            Badcaps Veteran
            • Nov 2013
            • 517
            • Czech Republic

            #6
            Re: Compaq 6735s led flash then shutdown

            First use supported CPU like Turion RM-70 to RM-75, Athlon QL-60 to QL-65 or Semron (not sure the right model now). CPU the Turion 64 X2 family or TurionII Pxxx or TurionII Mxxx are not supported.

            Comment

            • Alfa is auto
              Senior Member
              • May 2013
              • 83
              • Finland

              #7
              Re: Compaq 6735s led flash then shutdown

              I agree but if the same symptoms were original cpu then the gpu is done deal (my quess)

              Comment

              • sopik78
                Badcaps Veteran
                • Nov 2013
                • 517
                • Czech Republic

                #8
                Re: Compaq 6735s led flash then shutdown

                TMDTL56HAXSCT (Turion Tl-56) is not original CPU..

                I'm not saying that the gpu is OK, but you cannot fix the problem with unsupported devices
                Last edited by sopik78; 06-25-2014, 02:45 AM.

                Comment

                • Alfa is auto
                  Senior Member
                  • May 2013
                  • 83
                  • Finland

                  #9
                  Re: Compaq 6735s led flash then shutdown

                  Right,use either Ql- or RM series.

                  Comment

                  • Scootie
                    Senior Member
                    • Feb 2014
                    • 133
                    • Romania

                    #10
                    Re: Compaq 6735s led flash then shutdown

                    I tested the system with an AMQL60DAMZ2GG. The system boots up and then I have 2 leds blinking. I believe the gpu is done and needs replacing.

                    Comment

                    • Alfa is auto
                      Senior Member
                      • May 2013
                      • 83
                      • Finland

                      #11
                      Re: Compaq 6735s led flash then shutdown

                      I,ve done several of these by reflowing gpu and they still work after 5 months..lets see how long cause it is like mouth to mouth cpr.

                      Comment

                      • Tiek1983
                        New Member
                        • Jun 2014
                        • 1
                        • United States

                        #12
                        Re: Compaq 6735s led flash then shutdown

                        My name is Matt. I am new to the site. I am not the most knowledgable in this field. I am an entry level thermal analysis technician. However, I find working on electronics very fulfilling and interesting. I program, wire, and test the equipment I build and I am eager to become more familiar with electronics and their operations.

                        Thanks for excepting me
                        Matt

                        Comment

                        • Scootie
                          Senior Member
                          • Feb 2014
                          • 133
                          • Romania

                          #13
                          Re: Compaq 6735s led flash then shutdown

                          Originally posted by Alfa is auto
                          I,ve done several of these by reflowing gpu and they still work after 5 months..lets see how long cause it is like mouth to mouth cpr.
                          Yes, but I already reballed mine and the system is still dead, hence the need for a new gpu.

                          Comment

                          • dellxps15
                            Badcaps Legend
                            • Feb 2014
                            • 1585
                            • italy

                            #14
                            Re: Compaq 6735s led flash then shutdown

                            on the vga core coil, have you any short there ?

                            Comment

                            • Scootie
                              Senior Member
                              • Feb 2014
                              • 133
                              • Romania

                              #15
                              Re: Compaq 6735s led flash then shutdown

                              I didnt check and I dont even know how to. Hopefully in the following months I get to read and learn what to do with a laptop schematic.

                              Comment

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