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Vision Fitness T9700 treadmill motor controler/power suuply dead

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    #21
    Re: Vision Fitness T9700 treadmill motor controler/power suuply dead

    May be it has interlock switch that cut off the power when the covers are not in place.
    We probably need to see how the whole thing wired up.
    Check to see if have very low resistance reading between Line connector and the AC plug's Line, same for Neutral connector and the AC plug's Neutral.
    Last edited by budm; 07-19-2019, 08:37 PM.
    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


      #22
      Re: Vision Fitness T9700 treadmill motor controler/power suuply dead

      Hi budm

      There are no switches like that at all on this treadmill

      Comment


        #23
        Re: Vision Fitness T9700 treadmill motor controler/power suuply dead

        If not then you have to check the resistance reading between board L/N and ac plug L/N.
        Last edited by budm; 07-19-2019, 08:43 PM.
        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


          #24
          Re: Vision Fitness T9700 treadmill motor controler/power suuply dead

          Cant check ...not at location

          Comment


            #25
            Re: Vision Fitness T9700 treadmill motor controler/power suuply dead

            Good news...maybe

            I reconnected all the cables and used my direct ac connection and the treadmill seems to power on and all motors and display work.....

            No further testing done but thats a good sign

            The only wires i did not connect were the orig ac line and ground so maybe wiring issue or issue with the circuit breaker
            Last edited by shelby5041; 07-20-2019, 12:20 PM.

            Comment


              #26
              Re: Vision Fitness T9700 treadmill motor controler/power suuply dead

              Originally posted by shelby5041 View Post
              Hi
              Yes i have 115v at terminals next to transformer
              I thought you checked this and there WAS 115v ???

              Comment


                #27
                Re: Vision Fitness T9700 treadmill motor controler/power suuply dead

                Something is not adding up, must be error some where or wrong data.
                Last edited by budm; 07-20-2019, 02:32 PM.
                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


                  #28
                  Re: Vision Fitness T9700 treadmill motor controler/power suuply dead

                  yes i did have 115v coming out of circuit breaker and i had 115v at the hot wire going to the line connection....

                  and the lighted up power switch tells me the circuit breaker is ok

                  when i disconnect circuit breaker wires the power switch will not light up so that proves the circuit breaker is working?

                  anyways something is odd for sure and maybe something very simple

                  i havent done any further testingt but it does power on with my direct ac connection...maybe something funky going on with the circuit breaker??
                  Last edited by shelby5041; 07-20-2019, 03:46 PM.

                  Comment


                    #29
                    Re: Vision Fitness T9700 treadmill motor controler/power suuply dead

                    Easy enough to check the connection from the AC plug all the way to the board Hot and Neutral.
                    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


                      #30
                      Re: Vision Fitness T9700 treadmill motor controler/power suuply dead

                      well today i did some more testing of the treadmill and it seems to be working ok..it goes through and elaborate auto calibration process....treadmill goes up down and various rpms and then says ready

                      and i tried it and it seems to be working fine...i guess if i have to i will just leave the direct wire plug on it and just not hook up the circuit breaker and orig plug and switch...im not worried about that...as long as machine works im happy..i got it for free and its a $3000 retail gym quality treadmill very nice and quiet and sturdy

                      thanks for everyones help....still dont kno what the orig issue was but its not so important right now..if i ever get time maybe i will look more into it but its not high priority right now..

                      Comment


                        #31
                        Re: Vision Fitness T9700 treadmill motor controler/power suuply dead

                        hi

                        issue was bad rocker switch neutral connection

                        treadmill works great now..i just bypassed the rocker switch..will order a new one when i get time

                        i figured it was something simple...i guess next time a fitness center throws out avery expensive piece of equipment they should have it looked at...their ignorance is my gain

                        thanks for everyones help

                        Comment


                          #32
                          Re: Vision Fitness T9700 treadmill motor controler/power suuply dead

                          How amp go through this switch hot leg and neutral leg because I have seen mig welder do this kind-a crap you might want to put in a 120 volt relay good for 10 amps for each pole and use a 4 poles use two poles for hot leg and two for neutral leg then went it does not want to power ON it will be the relay

                          This is just a thought
                          Last edited by sam_sam_sam; 07-23-2019, 03:40 PM.
                          9 PC LCD Monitor
                          6 LCD Flat Screen TV
                          30 Desk Top Switching Power Supply
                          10 Battery Charger Switching Power Supply for Power Tool
                          6 18v Lithium Battery Power Boards for Tool Battery Packs
                          1 XBox 360 Switching Power Supply and M Board
                          25 Servo Drives 220/460 3 Phase
                          6 De-soldering Station Switching Power Supply 1 Power Supply
                          1 Dell Mother Board
                          15 Computer Power Supply
                          1 HP Printer Supply & Control Board * lighting finished it *


                          These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

                          1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
                          2 Hem Saw Computer Stack Board

                          All of these had CAPs POOF
                          All of the mosfet that are taken out by bad caps

                          Comment


                            #33
                            Re: Vision Fitness T9700 treadmill motor controler/power suuply dead

                            Its wired through a circuit breaker prior to connecting to power board so it should be ok

                            Comment


                              #34
                              Re: Vision Fitness T9700 treadmill motor controler/power suuply dead

                              The problem with going through a switch like that is the contact are not heavy enough for the type of current that the motor can pull at start up

                              That is why I made the comments earlier
                              9 PC LCD Monitor
                              6 LCD Flat Screen TV
                              30 Desk Top Switching Power Supply
                              10 Battery Charger Switching Power Supply for Power Tool
                              6 18v Lithium Battery Power Boards for Tool Battery Packs
                              1 XBox 360 Switching Power Supply and M Board
                              25 Servo Drives 220/460 3 Phase
                              6 De-soldering Station Switching Power Supply 1 Power Supply
                              1 Dell Mother Board
                              15 Computer Power Supply
                              1 HP Printer Supply & Control Board * lighting finished it *


                              These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

                              1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
                              2 Hem Saw Computer Stack Board

                              All of these had CAPs POOF
                              All of the mosfet that are taken out by bad caps

                              Comment


                                #35
                                Re: Vision Fitness T9700 treadmill motor controler/power suuply dead

                                Sam
                                you are correct....thats why the hot and neutral section of the switch are both burnt dark colored and the neutral just basically melted ...very thin guage contacts....

                                Right now i removed the switch so when you plug it in the unit powers on

                                maybe ill just leave it that way or find a heavier duty switch here is link to the switch that came ith machine https://www.ebay.com/itm/5x-Red-Lamp...MAAOSwtjhb~AoO

                                And bud m.you were right ...something didnt add up or error in user me lol......i never checked resistance from board line/ neutral to plug/switch.....if i would have i probably would have found the open neutral connection sooner....i never would have thought the rocker switch was bad since it lit up when powered on and i had 115v on the board when using my non contact voltage tester....which was another false indication since the 115v was present but the circuit was not....that portion of the switch was good but the outgoing circuit was bad so it was a false indication

                                Fyi i am not an electronics guy just a guy who likes to tinker with things i have no background at all in electronics and i appreciate all the advice in here...next time i need to be more thorough on followingbthrough with suggestions by experts like bud m and rj and others
                                Last edited by shelby5041; 07-24-2019, 04:30 AM.

                                Comment


                                  #36
                                  Re: Vision Fitness T9700 treadmill motor controler/power suuply dead

                                  "i never would have thought the rocker switch was bad since it lit up when powered on and i had 115v on the board when using my non contact voltage tester."
                                  If we had known that you were using that non-contact tester, we would have told you not to use that for checking for the actual Voltage, it should be done with the meter, and I see why you tester lights up when Neutral is not connected due to bad switch.
                                  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


                                    #37
                                    Re: Vision Fitness T9700 treadmill motor controler/power suuply dead

                                    Originally posted by shelby5041 View Post
                                    Sam
                                    you are correct....thats why the hot and neutral section of the switch are both burnt dark colored and the neutral just basically melted ...very thin guage contacts....
                                    https://www.ebay.com/itm/5x-Red-Lamp...MAAOSwtjhb~AoO
                                    This might not be any better than what was in there if you want to go cheap and easily replaceable you could use a regular light switch that used in your house just use two of them in electrical box that has two switch place in the box
                                    9 PC LCD Monitor
                                    6 LCD Flat Screen TV
                                    30 Desk Top Switching Power Supply
                                    10 Battery Charger Switching Power Supply for Power Tool
                                    6 18v Lithium Battery Power Boards for Tool Battery Packs
                                    1 XBox 360 Switching Power Supply and M Board
                                    25 Servo Drives 220/460 3 Phase
                                    6 De-soldering Station Switching Power Supply 1 Power Supply
                                    1 Dell Mother Board
                                    15 Computer Power Supply
                                    1 HP Printer Supply & Control Board * lighting finished it *


                                    These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

                                    1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
                                    2 Hem Saw Computer Stack Board

                                    All of these had CAPs POOF
                                    All of the mosfet that are taken out by bad caps

                                    Comment


                                      #38
                                      Re: Vision Fitness T9700 treadmill motor controler/power suuply dead

                                      you are correct bud m

                                      However i was assuming it was a board issue the whole time so my ind was directed in a diff area...i even removed the caps and tested using my esr meter and they all were good....lesson learned...check the easy stuff first using the proper equip and methods....i really thought the board,was bad since its a common issue on this model treadmill....

                                      And sam im not looking to make this a project..too many other things to do...this was just a good trash find....just looking to get item to work which it is.....im going to leave as is or order the same switch that came with the treadmill....and will contact vision fitness and lodge a complaint ...

                                      Comment

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