LGR41 laptop if i press power switch cannot power on...

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  • lorins_core
    BlackSmith
    • Dec 2012
    • 551
    • Philippines
    #1

    LGR41 laptop if i press power switch cannot power on...

    LGR41 if i press power switch cannot power on...

    i do the following i check
    1. check the power switch ok
    2. check the flex board to mother board ok (flex or data cable i check ok)
    replace a good one Ok...

    i wondered this unit have power because they have a Indicate power in Light
    why not switching on i try to switch direct short the pin no5 and no6 these are the connection to power switch connected to power button...

    would you help me where are the parts malfunction...

    there is the Mother Board

    [/IMG]
    Last edited by lorins_core; 01-17-2013, 05:32 AM.
    Tags: None
    • lorins_core
      BlackSmith
      • Dec 2012
      • 551
      • Philippines
      #2
      Re: LGR41 laptop if i press power switch cannot power on...

      Follow Up pls....

        Comment

        • ben7
          Capaholic
          • Jan 2011
          • 4059
          • USA
          #3
          Re: LGR41 laptop if i press power switch cannot power on...

          Check on the VRM capacitors to see if the voltage comes up at all. See if the VRM is getting power at all. Find all voltage regulators on the board, and test them.

          Is it me or does that board look very burnt in the middle?!
          Muh-soggy-knee

            Comment

            • spidey
              climbs
              • Dec 2012
              • 644
              • Cyprus
              #4
              Re: LGR41 laptop if i press power switch cannot power on...

              find the schematic first, measure the regulator voltages also check power button for 3v, if everything is ok find the bios file and update it.if still nothing reflow keyb. controller ic. But you need a power supply unit which has adjustble current and also measure current to see whats going on..

                Comment

                • lorins_core
                  BlackSmith
                  • Dec 2012
                  • 551
                  • Philippines
                  #5
                  Re: LGR41 laptop if i press power switch cannot power on...

                  Originally posted by spidey
                  find the schematic first, measure the regulator voltages also check power button for 3v, if everything is ok find the bios file and update it.if still nothing reflow keyb. controller ic. But you need a power supply unit which has adjustble current and also measure current to see whats going on..
                  Sir I Don't have a Schematic Would you like to give me? I tired to find in Google :-(....

                    Comment

                    • lorins_core
                      BlackSmith
                      • Dec 2012
                      • 551
                      • Philippines
                      #6
                      Re: LGR41 laptop if i press power switch cannot power on...

                      Originally posted by ben7
                      Check on the VRM capacitors to see if the voltage comes up at all. See if the VRM is getting power at all. Find all voltage regulators on the board, and test them.

                      Is it me or does that board look very burnt in the middle?!

                      Sir Would you givve to me where location. yes Already repaired in Other Service Center...

                        Comment

                        • spidey
                          climbs
                          • Dec 2012
                          • 644
                          • Cyprus
                          #7
                          Re: LGR41 laptop if i press power switch cannot power on...

                          read the model number on the board and google it, good luck..

                            Comment

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