Vaio flip 14n ,Missing SLP_S4#

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  • kokono
    Badcaps Veteran
    • Jun 2018
    • 203
    • Germany
    #1

    Vaio flip 14n ,Missing SLP_S4#

    Board : DA0FI2MB6D0
    i measured 3V and 5V .is ok .
    after press power button, i can see that all voltage present about 0.5 second and after this time ,except 3v and 5v ,all fall to zero.
    i followed this Timing chart and checked all Signals. I noticed that up to SLP_S4#, they are all correct and durable.
    SLP_S4# 0v > 3.3v (about 0.5 Second) > 0v
    I noticed that from this signal onwards, all of them are present only for about half a second and then they become zero.
    In addition, I did not find anything about a short circuit in the board.
    I know that this signal(SLP_S4#) comes from PCH, but if it is not there, what condition causes the loss of this signal? What else would you recommend testing?
    [Mod. Edit] Schematic -> https://www.badcaps.net/forum/showth...298#post797298

    Reminder: rules and organization of this section
    https://www.badcaps.net/forum/showthread.php?t=117483
    Attached Files
    Last edited by Vesko356; 10-03-2023, 04:31 AM. Reason: Attached schematic removed and replaced with link.
    Tags: None
    • mon2
      Badcaps Legend
      • Dec 2019
      • 13829
      • Canada
      #2
      Re: Vaio flip 14n ,Missing SLP_S4#

      Confirm the voltage to ground on charger IC pu13 for the ACOK and ACIN pins.

        Comment

        • kokono
          Badcaps Veteran
          • Jun 2018
          • 203
          • Germany
          #3
          Re: Vaio flip 14n ,Missing SLP_S4#

          Originally posted by mon2
          Confirm the voltage to ground on charger IC pu13 for the ACOK and ACIN pins.
          ACIN =3.5 v
          ACOK = 4.7 v

            Comment

            • mon2
              Badcaps Legend
              • Dec 2019
              • 13829
              • Canada
              #4
              Re: Vaio flip 14n ,Missing SLP_S4#

              Good. Check CSSP and CSSN voltage to ground for each.

                Comment

                • kokono
                  Badcaps Veteran
                  • Jun 2018
                  • 203
                  • Germany
                  #5
                  Re: Vaio flip 14n ,Missing SLP_S4#

                  Originally posted by mon2
                  Good. Check CSSP and CSSN voltage to ground for each.
                  Both 18.6 v

                    Comment

                    • Techtiger
                      Badcaps Legend
                      • Oct 2014
                      • 1601
                      • france
                      #6
                      Re: Vaio flip 14n ,Missing SLP_S4#

                      Originally posted by kokono
                      Board : DA0FI2MB6D0
                      i measured 3V and 5V .is ok .
                      after press power button, i can see that all voltage present about 0.5 second and after this time ,except 3v and 5v ,all fall to zero.
                      i followed this Timing chart and checked all Signals. I noticed that up to SLP_S4#, they are all correct and durable.
                      SLP_S4# 0v > 3.3v (about 0.5 Second) > 0v
                      I noticed that from this signal onwards, all of them are present only for about half a second and then they become zero.
                      In addition, I did not find anything about a short circuit in the board.
                      I know that this signal(SLP_S4#) comes from PCH, but if it is not there, what condition causes the loss of this signal? What else would you recommend testing?
                      [Mod. Edit] Schematic -> https://www.badcaps.net/forum/showth...298#post797298

                      Reminder: rules and organization of this section
                      https://www.badcaps.net/forum/showthread.php?t=117483
                      Could you confirm if all the voltage signals are present up to CPUPWRGOOD and PLTRST? (i can see that all voltage present about 0.5 second and after this time ,except 3v and 5v ,all fall to zero)

                        Comment

                        • Techtiger
                          Badcaps Legend
                          • Oct 2014
                          • 1601
                          • france
                          #7
                          Re: Vaio flip 14n ,Missing SLP_S4#

                          measure the resistance to ground of all Gig gray coils, such as PL5, check the resistance to ground of the +5V_S5, and +3V_S5 sides

                            Comment

                            • mcplslg123
                              Badcaps Legend
                              • Jun 2015
                              • 7262
                              • india
                              #8
                              Re: Vaio flip 14n ,Missing SLP_S4#

                              With sony, need to look for SHDN#

                                Comment

                                • kokono
                                  Badcaps Veteran
                                  • Jun 2018
                                  • 203
                                  • Germany
                                  #9
                                  Re: Vaio flip 14n ,Missing SLP_S4#

                                  Originally posted by Techtiger
                                  measure the resistance to ground of all Gig gray coils, such as PL5, check the resistance to ground of the +5V_S5, and +3V_S5 sides
                                  Thx, I measured all coils . All of them are normal.
                                  +5V_S5, and +3V_S5 ,These voltages come and go after about 8 seconds.

                                    Comment

                                    • kokono
                                      Badcaps Veteran
                                      • Jun 2018
                                      • 203
                                      • Germany
                                      #10
                                      Re: Vaio flip 14n ,Missing SLP_S4#

                                      Originally posted by mcplslg123
                                      With sony, need to look for SHDN#
                                      This signal is 4.9 V without change

                                        Comment

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