Help identify component

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  • madan1
    Badcaps Veteran
    • Nov 2016
    • 659
    • Bulgaria

    #1

    Help identify component

    Can anyone identify the yellow component S1. It has two legs, one of which is connected to the component's body and has no writings on it.
    When the board is shaken, something in the component rattles.
    The board is RTI t2-c smart remote control ( I could not find a service manual ).
    The component is in what seems to be the "power supply" part of the board.
    Attached Files
    Last edited by madan1; 04-21-2019, 02:07 PM.
  • budm
    Badcaps Legend
    • Feb 2010
    • 40746
    • USA

    #2
    Re: Help identify component

    Tilt ball switch.
    https://www.adafruit.com/product/173...BoC4UAQAvD_BwE
    Never stop learning
    Basic LCD TV and Monitor troubleshooting guides.
    http://www.badcaps.net/forum/showthr...956#post305956

    Voltage Regulator (LDO) testing:
    http://www.badcaps.net/forum/showthr...999#post300999

    Inverter testing using old CFL:
    http://www.badcaps.net/forum/showthr...er+testing+cfl

    Tear down pictures : Hit the ">" Show Albums and stories" on the left side
    http://s807.photobucket.com/user/budm/library/

    TV Factory reset codes listing:
    http://www.badcaps.net/forum/showthread.php?t=24809

    Comment

    • madan1
      Badcaps Veteran
      • Nov 2016
      • 659
      • Bulgaria

      #3
      Re: Help identify component

      Helpful as always! Thanks budm!

      "The "poor man's" accelerometer!" in a $800 smart remote control... fu%k logic.

      Comment

      • Retro-Hipster
        Tinkerer
        • Apr 2019
        • 125
        • United States

        #4
        Re: Help identify component

        I think the logic is pretty sound on their part...

        cheaper parts = moar profit. lol Joking aside, if we are just talking something to register simple movement so that the remote lights up/turns on, then that is probably a pretty smart choice on their part..

        Originally posted by madan1
        Helpful as always! Thanks budm!

        "The "poor man's" accelerometer!" in a $800 smart remote control... fu%k logic.


        “Men always seem to think about their
        past before they die, as though they were
        frantically searching for proof that they
        truly lived.”
        – Jet (Cowboy Bebop) -

        Comment

        • madan1
          Badcaps Veteran
          • Nov 2016
          • 659
          • Bulgaria

          #5
          Re: Help identify component

          Here is another one - the thingy in the red circle.
          It measures ~7700 ohms resistance.
          It is on the main battery voltage rail and when shunted, the device starts fine.
          Don't mind the lousy solder job above the thingy.. it was just for testing purposes and already has been fixed.

          p.s. the thingy was measured out of the circuit.
          Attached Files
          Last edited by madan1; 06-24-2019, 04:24 AM.

          Comment

          • R_J
            Badcaps Legend
            • Jun 2012
            • 9514
            • Canada

            #6
            Re: Help identify component

            It is likely a fuse, any letters on the ends (ie: bel) or maybe a number under it. digikey etc. carry them
            Attached Files
            Last edited by R_J; 06-24-2019, 10:16 AM.

            Comment

            • madan1
              Badcaps Veteran
              • Nov 2016
              • 659
              • Bulgaria

              #7
              Re: Help identify component

              Originally posted by R_J
              It looks like it could be a fuse
              That was my first thought... but don't the fuses fail by breaking the internal connection?
              This one still has some resistance.. that's why I'm confused.
              For now I have installed a 0 ohm smd resistor and the device works works fine ( kinda... looks like it needs a professional calibration or/and new sensors ). I do not see any excessive current drain or hot components.

              edit: no markings at all - not on the component, not on the board.
              Last edited by madan1; 06-24-2019, 10:11 AM.

              Comment

              • R_J
                Badcaps Legend
                • Jun 2012
                • 9514
                • Canada

                #8
                Re: Help identify component

                It depends on what the fuse element is made from, since there is no short on the board, it might just be fuse fatigue, the fuse element over time got weak and finally opened, but there is still a small amount of resistance 7.7k

                Comment

                • stj
                  Great Sage 齊天大聖
                  • Dec 2009
                  • 30910
                  • Albion

                  #9
                  Re: Help identify component

                  not a fuse, not one i'v ever seen.
                  it may be a ptc or polyfuse of some type.

                  Comment

                  • madan1
                    Badcaps Veteran
                    • Nov 2016
                    • 659
                    • Bulgaria

                    #10
                    Re: Help identify component

                    Can anyone tell me something about the Q1 component?
                    It looks like a transistor, but what the bleep is that black part on its top?
                    P.S. I do not need any part number or something.. just some basic info about the part
                    Attached Files

                    Comment

                    • budm
                      Badcaps Legend
                      • Feb 2010
                      • 40746
                      • USA

                      #11
                      Re: Help identify component

                      Q1? Where?
                      Never stop learning
                      Basic LCD TV and Monitor troubleshooting guides.
                      http://www.badcaps.net/forum/showthr...956#post305956

                      Voltage Regulator (LDO) testing:
                      http://www.badcaps.net/forum/showthr...999#post300999

                      Inverter testing using old CFL:
                      http://www.badcaps.net/forum/showthr...er+testing+cfl

                      Tear down pictures : Hit the ">" Show Albums and stories" on the left side
                      http://s807.photobucket.com/user/budm/library/

                      TV Factory reset codes listing:
                      http://www.badcaps.net/forum/showthread.php?t=24809

                      Comment

                      • petehall347
                        Badcaps Legend
                        • Jan 2015
                        • 4422
                        • United Kingdom

                        #12
                        Re: Help identify component

                        Originally posted by budm
                        Q1? Where?
                        next to q3

                        Comment

                        • madan1
                          Badcaps Veteran
                          • Nov 2016
                          • 659
                          • Bulgaria

                          #13
                          Re: Help identify component

                          Originally posted by budm
                          Q1? Where?
                          Good question... really forgot to check the images I uploaded

                          Here is the same image but brightened and with circled Q1 ( my office monitor has crappy brightness, thus I'm not sure how "visible" are the images ).
                          Attached Files

                          Comment

                          • stj
                            Great Sage 齊天大聖
                            • Dec 2009
                            • 30910
                            • Albion

                            #14
                            Re: Help identify component

                            looks like a pyroelectric sensor.
                            same thing you find in a PIR switch.

                            the real question is what the hell is it doing in a button assembly?

                            Comment

                            • madan1
                              Badcaps Veteran
                              • Nov 2016
                              • 659
                              • Bulgaria

                              #15
                              Re: Help identify component

                              I believe you are totally correct!
                              If I remember correctly, the board came out from a scrapped bluetooth speaker ( "sharkk true wireless speaker" ) and I have absolutely no idea what a PIR sensor has to do with such an item... I guess it's time for a tin-foil hat...

                              Comment

                              • stj
                                Great Sage 齊天大聖
                                • Dec 2009
                                • 30910
                                • Albion

                                #16
                                Re: Help identify component

                                Originally posted by madan1
                                I guess it's time for a tin-foil hat...
                                not a wireless one, you need the type with an earth wire!

                                Comment

                                • redwire
                                  Badcaps Legend
                                  • Dec 2010
                                  • 3900
                                  • Canada

                                  #17
                                  Re: Help identify component

                                  It's a PIR motion sensor, IC is BISS0001. Shark: "Thermal heat sensor automatically activates frosted LED backlighting for the buttons on the speaker"

                                  Comment

                                  • stj
                                    Great Sage 齊天大聖
                                    • Dec 2009
                                    • 30910
                                    • Albion

                                    #18
                                    Re: Help identify component

                                    LOL

                                    thermoelectric sensor and i.c. probably consume more mA than the leds!

                                    Comment

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