ms-16811 no power

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  • davegeer
    New Member
    • Jan 2015
    • 6
    • United Kingdom

    #1

    ms-16811 no power

    Hi I have an msi cr620 that suddenly turned off completely and now will not power up. I have tried another fully charged battery and another power supply, but the computer still has no lights at all and no fan running. No lights. It is dead. I have stripped it down to bare bones and tested the memory, tried a new hdd still no joy. I have the shematic and will start to go through the circuits, but I wondered if anyone has any hints about where to start, has anyone had this before and cured it etc. Any guidance would be appreciated. Thanks.
  • dj_ricoh
    Badcaps Legend
    • Jan 2013
    • 2073
    • uk

    #2
    Re: ms-16811 no power

    rule nr1
    you attach the schematic so we can see what you see and give some advice
    Just cook it! It's already broken.

    Comment

    • selldoor
      Slow Learner
      • Dec 2010
      • 7870

      #3
      Re: ms-16811 no power

      pictures and the schematic might help
      Please upload pictures using attachment function when ask for help on the repair
      http://www.badcaps.net/forum/showthread.php?t=39740

      Comment

      • davegeer
        New Member
        • Jan 2015
        • 6
        • United Kingdom

        #4
        Re: ms-16811 no power

        Here is the schematic. it is the right one. the mobo is ms-16811 ver 1.1
        Attached Files

        Comment

        • davegeer
          New Member
          • Jan 2015
          • 6
          • United Kingdom

          #5
          Re: ms-16811 no power

          Got to be around the sheet 41 area, but where to start?

          Comment

          • selldoor
            Slow Learner
            • Dec 2010
            • 7870

            #6
            Re: ms-16811 no power

            When you plug in the charger does the led stay on?
            Can you post a close up picture of the area around the power plug - both sides.

            No voltages anywhere on the mainboard? - coils are easy to test.
            Please upload pictures using attachment function when ask for help on the repair
            http://www.badcaps.net/forum/showthread.php?t=39740

            Comment

            • selldoor
              Slow Learner
              • Dec 2010
              • 7870

              #7
              Re: ms-16811 no power

              Can you find this PQ16 P-AO4433 on the board - it is a soic8 and should have 19v on pins
              1,2,3. see schem page 39
              Please upload pictures using attachment function when ask for help on the repair
              http://www.badcaps.net/forum/showthread.php?t=39740

              Comment

              • davegeer
                New Member
                • Jan 2015
                • 6
                • United Kingdom

                #8
                Re: ms-16811 no power

                The led on the charger stays on yes. No short there. There are no leds lit on the computer at all. I am away from home till Tuesday, but will post photos then. There is voltage on the board as far as pins 5,6,7 and 8 of PQ16 so DC_IN+ is present. that is as far as I got. I need to identify more components, but it will have to wait till Tuesday now. There is also no response with a freshly charged battery, so it has to be common to both voltage scources.
                Last edited by davegeer; 01-02-2015, 11:19 AM.

                Comment

                • selldoor
                  Slow Learner
                  • Dec 2010
                  • 7870

                  #9
                  Re: ms-16811 no power

                  Well as you have some power t the motherboard I would have a good look at and test the button board and ribbon and connector. I see a button board on ebay.
                  http://www.ebay.co.uk/itm/MSI-CR620-...item27e781f7d8
                  Please upload pictures using attachment function when ask for help on the repair
                  http://www.badcaps.net/forum/showthread.php?t=39740

                  Comment

                  • davegeer
                    New Member
                    • Jan 2015
                    • 6
                    • United Kingdom

                    #10
                    Re: ms-16811 no power

                    Good thinking selldoor, why didn't I already do that. Thanks for the help. I'll let you know how I get on.

                    Comment

                    • angel-boy
                      Badcaps Veteran
                      • Jan 2013
                      • 550
                      • Romania

                      #11
                      Re: ms-16811 no power

                      bios and ec for this model ? 16811 ver 1.1

                      Comment

                      • angel-boy
                        Badcaps Veteran
                        • Jan 2013
                        • 550
                        • Romania

                        #12
                        Re: ms-16811 no power

                        any help please

                        Comment

                        • jamesw23
                          New Member
                          • Jun 2016
                          • 1
                          • United Kingdom

                          #13
                          Re: ms-16811 no power

                          Hi
                          Does anyone have a solution for this issue, as my dad has a msi A6200 laptop with this motherboard and exactly the same problem it wont turn on. No lights on the laptop and the light on the charger goes dim and flashes when connected to the laptop. I found the PQ16 chip on the board and tested to see how much voltage was going through and my dads multimeter was showing about 1/4 of a volt, that was through pins 4 and 8. All other pins on that chip showed no signs of power.

                          Comment

                          • vickey_vip
                            Senior Member
                            • Mar 2016
                            • 134
                            • India

                            #14
                            Re: ms-16811 no power

                            Bro your main board have shorting any where first check it. Check capacitor near power IC and near battery connector they should not short.

                            Comment

                            • toufik sat
                              Senior Member
                              • Feb 2016
                              • 134
                              • los angles

                              #15
                              Re: ms-16811 no power

                              Thanks.

                              Comment

                              • Noreddin
                                Senior Member
                                • Jan 2020
                                • 73
                                • mostaganem

                                #16
                                Re: ms-16811 no power

                                Thanks

                                Comment

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