Emachines D725 Keyboard and touchpad not working

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  • Taxman
    Member
    • Nov 2012
    • 45
    • UK

    #21
    Re: Emachines D725 Keyboard and touchpad not working

    Last thought. I wouldn't have expected this to affect the system when booting pre-Windows, but apparently it can - if you've inadvertently switched on Filter Keys you can lose access to the keyboard AND the mousepad.

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    • valiant007
      Comp Technician
      • Dec 2012
      • 44
      • philippines

      #22
      Re: Emachines D725 Keyboard and touchpad not working

      its ok, im open to any suggestions. what do you mean by: ``if you've inadvertently switched on Filter Keys you can lose access to the keyboard AND the mousepad´´. i did not understand that sentence.
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      • goodbrethen
        Member
        • Dec 2012
        • 17
        • Philippines

        #23
        Re: Emachines D725 Keyboard and touchpad not working

        try to reset all the cable connection connected to keyboard and touchpad maybe it will help.

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        • Taxman
          Member
          • Nov 2012
          • 45
          • UK

          #24
          Re: Emachines D725 Keyboard and touchpad not working

          Filter keys is an option that makes typing easier for people with physical hand problems. It tells the keyboard to ignore brief or repeated keystrokes and means that keys need to be pressed for a longer time to respond. It can be switched on by pressing the shift key for 8 seconds and that can of course be done unintentionally - I heard of that supposedly happening when a cat walked on a keyboard.

          I believe the filtr keys option is only supposed to affect the keyboard but I've heard of it affecting the touchpad too.

          You can check if it's on and turn it on or off via the Accessibility options in the control panel.

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          • fddizon
            Badcaps Veteran
            • Sep 2011
            • 555
            • Philippines

            #25
            Re: Emachines D725 Keyboard and touchpad not working

            valiant,

            why don't you try troubleshooting keyboard first.
            i suggest you download the net book schematic so you will clearly see where to start troubleshooting.

            regards

            Comment

            • valiant007
              Comp Technician
              • Dec 2012
              • 44
              • philippines

              #26
              Re: Emachines D725 Keyboard and touchpad not working

              Originally posted by fddizon
              valiant,

              why don't you try troubleshooting keyboard first.
              i suggest you download the net book schematic so you will clearly see where to start troubleshooting.

              regards
              thanks for the suggestion, do you know a website where i can download the schematic for this laptop?
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              Free Computer Service!!!!!!!!!
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              • fddizon
                Badcaps Veteran
                • Sep 2011
                • 555
                • Philippines

                #27
                Re: Emachines D725 Keyboard and touchpad not working

                will feed it here

                http://kythuatphancung.com/download/...chematics.html

                (bro, meron ba place diyan na makakamura sa overnight accommodation? hehehe plano pa lang this coming summer)
                Last edited by fddizon; 12-15-2012, 04:35 AM.

                Comment

                • heavymachines
                  Badcaps Legend
                  • Mar 2011
                  • 1028
                  • United States

                  #28
                  Re: Emachines D725 Keyboard and touchpad not working

                  Originally posted by valiant007
                  thanks for your advice, i tried booting it up on hirens but with the same result. seems to be a hardware problem. do you have any suggestions where i can check for the hardware prob?
                  its time to take it apart get the motherboard exposed and start checking fuses and continuity on ribbons and look for obvious shorts or corrisions...you will need a dmm

                  Comment

                  • ala_borbe
                    aka Donald
                    • Apr 2011
                    • 1625
                    • Malta

                    #29
                    Re: Emachines D725 Keyboard and touchpad not working

                    well im not expert but after i tested it with another working keyboard i i would replace Keyboard Controller (KBC KBC773L)...
                    Im Back... sort of...

                    Comment

                    • fddizon
                      Badcaps Veteran
                      • Sep 2011
                      • 555
                      • Philippines

                      #30
                      Re: Emachines D725 Keyboard and touchpad not working

                      Originally posted by ala_borbe
                      well im not expert but after i tested it with another working keyboard i i would replace Keyboard Controller (KBC KBC773L)...
                      that is a way too fast to conclude.
                      our friend here is trying to learn too.
                      kbc pins goes to kb connectors. it will be worth checking. also check for unusual on the chips pin.

                      if there are corrosion on pins, clean the pins with cleaner and tooth brush.
                      flux and heat, cool it, clean and test.

                      i bet you know what to do. i wrote just in case

                      regards

                      Comment

                      • valiant007
                        Comp Technician
                        • Dec 2012
                        • 44
                        • philippines

                        #31
                        Re: Emachines D725 Keyboard and touchpad not working

                        Originally posted by fddizon
                        will feed it here

                        http://kythuatphancung.com/download/...chematics.html

                        (bro, meron ba place diyan na makakamura sa overnight accommodation? hehehe plano pa lang this coming summer)
                        thanks for this. it is greatly appreciated.

                        (Mail mo lang ako ng mga details para hanapan kita ng mura.)
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                        Free Computer Service!!!!!!!!!
                        If We can´t Fix the problem.

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                        • valiant007
                          Comp Technician
                          • Dec 2012
                          • 44
                          • philippines

                          #32
                          Re: Emachines D725 Keyboard and touchpad not working

                          Originally posted by heavymachines
                          its time to take it apart get the motherboard exposed and start checking fuses and continuity on ribbons and look for obvious shorts or corrisions...you will need a dmm
                          ok ill thy this suggestion. its just that ive been fixing laptops for some time now but i just started on board level repair recently so im quite new with this stuff. ill open it up try your suggestions. thanks again.
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                          Free Computer Service!!!!!!!!!
                          If We can´t Fix the problem.

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                          • valiant007
                            Comp Technician
                            • Dec 2012
                            • 44
                            • philippines

                            #33
                            Re: Emachines D725 Keyboard and touchpad not working

                            Originally posted by ala_borbe
                            well im not expert but after i tested it with another working keyboard i i would replace Keyboard Controller (KBC KBC773L)...
                            i may consider this suggention sir but it will be my last resort. ill try testing the other parts first before i replace the keyboard controller. thanks for giving time for this suggestion.
                            _________________________________________________________________
                            Free Computer Service!!!!!!!!!
                            If We can´t Fix the problem.

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                            • valiant007
                              Comp Technician
                              • Dec 2012
                              • 44
                              • philippines

                              #34
                              Re: Emachines D725 Keyboard and touchpad not working

                              Originally posted by fddizon
                              that is a way too fast to conclude.
                              our friend here is trying to learn too.
                              kbc pins goes to kb connectors. it will be worth checking. also check for unusual on the chips pin.

                              if there are corrosion on pins, clean the pins with cleaner and tooth brush.
                              flux and heat, cool it, clean and test.

                              i bet you know what to do. i wrote just in case

                              regards
                              thanks for the suggestion. actually im quite new on board level repair so any suggestion you give me on how to check and what to look for is a lot of help for me. ill try all your suggestions. thanks for giving time to give me this suggestions. it is greatly appreciated.
                              _________________________________________________________________
                              Free Computer Service!!!!!!!!!
                              If We can´t Fix the problem.

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                              • valiant007
                                Comp Technician
                                • Dec 2012
                                • 44
                                • philippines

                                #35
                                Re: Emachines D725 Keyboard and touchpad not working

                                i still have a prob with this. does any of you guys have other suggestions?
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                                Free Computer Service!!!!!!!!!
                                If We can´t Fix the problem.

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                                • heavymachines
                                  Badcaps Legend
                                  • Mar 2011
                                  • 1028
                                  • United States

                                  #36
                                  Re: Emachines D725 Keyboard and touchpad not working

                                  Originally posted by valiant007
                                  i still have a prob with this. does any of you guys have other suggestions?
                                  check for shorts if both touchpad and keyboard not working see if there is a component on motherboard that shares resources between those two i/o's check for shorts, corrosion etc sounds like possible liquid damage check it over use a schematics to show you all what is what that controls those functions .

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