DAY11AMB6E0 three flashes on dc jack

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  • luckydip
    Senior Member
    • Aug 2016
    • 159
    • uk
    #1

    DAY11AMB6E0 three flashes on dc jack

    Hi

    HP laptop, no charging light on dc jack when adaptor inserted.When you press the power button, three flashes on jack, apart from that dead. I checked the 3v &5v coils nothing, both missing enable signals on PU11 and PU12. 3VPCU & 5VPCU, 19v present.

    The enable signal S5_ON comes from Super I/O. Checked a few volatges, looks like 3v on pin 11 is missing. Not sure where this comes from, any ideas?
    Attached Files
    Last edited by luckydip; 10-02-2019, 12:35 PM.
    Tags: None
    • Techtiger
      Badcaps Legend
      • Oct 2014
      • 1601
      • france
      #2
      Re: DAY11AMB6E0 three flashes on dc jack

      SIO pin11 3V comes after switching 3VS5 , what is the voltage on pin 7&8 PU11, PU12 pin8 ? Check on SIO pin 97 ACIN, is the PR211 CLR getting +19V
      Last edited by Techtiger; 10-02-2019, 01:57 PM.

        Comment

        • luckydip
          Senior Member
          • Aug 2016
          • 159
          • uk
          #3
          Re: DAY11AMB6E0 three flashes on dc jack

          Originally posted by techtiger
          SIO pin11 3V comes after switching 3VPCU , Check on SIO pin 97 ACIN
          PU11
          pin 7 4.3v
          pin 8 19.6v

          PU12
          pin8 19.6v

          pin 97 ACIN 3v

          I injected the enable signal and both coils had 3v & 5v.

          PR211 19v both sides
          Last edited by luckydip; 10-02-2019, 02:08 PM.

            Comment

            • Techtiger
              Badcaps Legend
              • Oct 2014
              • 1601
              • france
              #4
              Re: DAY11AMB6E0 three flashes on dc jack

              Check SIO pin 67 AD TYPE are you using a original Charger ?

                Comment

                • luckydip
                  Senior Member
                  • Aug 2016
                  • 159
                  • uk
                  #5
                  Re: DAY11AMB6E0 three flashes on dc jack

                  Originally posted by techtiger
                  Check SIO pin 67 AD TYPE are you using a original Charger ?
                  pin 67 0v

                  The machine came with no charger but I'm using a hp adaptor which works ok on other pavillions. Is this the issue?

                    Comment

                    • luckydip
                      Senior Member
                      • Aug 2016
                      • 159
                      • uk
                      #6
                      Re: DAY11AMB6E0 three flashes on dc jack

                      Originally posted by luckydip
                      pin 67 0v

                      The machine came with no charger but I'm using a hp adaptor which works ok on other hp's. Is this the issue?
                      So it looks like the charger is not detected? I've tried another one and the same problem. Do I need to check the jack pin 5 for AD_ID? If no voltage here, is that a faulty jack?

                        Comment

                        • piernov
                          Super Moderator
                          • Jan 2016
                          • 4435
                          • France
                          #7
                          Re: DAY11AMB6E0 three flashes on dc jack

                          DC-in LED blinking 3 times mean the AC adapter is not recognized properly or is not the correct power rating.
                          OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

                            Comment

                            • Techtiger
                              Badcaps Legend
                              • Oct 2014
                              • 1601
                              • france
                              #8
                              Re: DAY11AMB6E0 three flashes on dc jack

                              Yep Piernov is correct you need to check AD_ID?

                                Comment

                                • mcplslg123
                                  Badcaps Legend
                                  • Jun 2015
                                  • 7262
                                  • india
                                  #9
                                  Re: DAY11AMB6E0 three flashes on dc jack

                                  yeah, agree 100%. Faced this on many occasions.

                                    Comment

                                    • luckydip
                                      Senior Member
                                      • Aug 2016
                                      • 159
                                      • uk
                                      #10
                                      Re: DAY11AMB6E0 three flashes on dc jack

                                      AD_ID 0v, ordered new jack - will update once I get it. Thanks guys!

                                        Comment

                                        • mcplslg123
                                          Badcaps Legend
                                          • Jun 2015
                                          • 7262
                                          • india
                                          #11
                                          Re: DAY11AMB6E0 three flashes on dc jack

                                          If the dc jack looks fine with no apparent damage, then problem may be in the mb.

                                            Comment

                                            • luckydip
                                              Senior Member
                                              • Aug 2016
                                              • 159
                                              • uk
                                              #12
                                              Re: DAY11AMB6E0 three flashes on dc jack

                                              Update - power jack changed and now boots up. But, when I attach the power adaptor I get a white screen before I press the power button. Similarly, I get a white screen when I turn the machine off when power adaptor is attached. So it looks like screen has a direct power line. Should the +3VLCD_CON only come high after the power button is pressed? Apart from that the screen works fine. Any ideas?

                                                Comment

                                                • piernov
                                                  Super Moderator
                                                  • Jan 2016
                                                  • 4435
                                                  • France
                                                  #13
                                                  Re: DAY11AMB6E0 three flashes on dc jack

                                                  White screen usually means backlight is on but power to the LCD is off.
                                                  The backlight enable line should go low when the computer is off.
                                                  OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

                                                    Comment

                                                    • luckydip
                                                      Senior Member
                                                      • Aug 2016
                                                      • 159
                                                      • uk
                                                      #14
                                                      Re: DAY11AMB6E0 three flashes on dc jack

                                                      I checked U3 pin44 BL_EN - its low when the machine is off and comes high when i power up.

                                                      pin 20 PANEL_VCC low then high on power on
                                                      pin 19 PWMOUT initially 5v then drops to 3v on power on

                                                      does pin 19 set brightness?

                                                        Comment

                                                        • piernov
                                                          Super Moderator
                                                          • Jan 2016
                                                          • 4435
                                                          • France
                                                          #15
                                                          Re: DAY11AMB6E0 three flashes on dc jack

                                                          Yes, it should be between 0 and 3.3V. Should probably be 0 when the computer is off…
                                                          OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

                                                            Comment

                                                            • luckydip
                                                              Senior Member
                                                              • Aug 2016
                                                              • 159
                                                              • uk
                                                              #16
                                                              Re: DAY11AMB6E0 three flashes on dc jack

                                                              Originally posted by piernov
                                                              Yes, it should be between 0 and 3.3V. Should probably be 0 when the computer is off…
                                                              Is the next step to change U3 RTD2136R?

                                                                Comment

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