Announcement

Collapse
No announcement yet.

ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    #21
    Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

    Is this it? https://www.aliexpress.com/item/PTC-...27023b32CUMREi

    Comment


      #22
      Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

      Originally posted by WhiteWolfHellas View Post
      Thanks for the reply, but the link is not working.
      Glad to hear no comebacks even after greatly heating up the new led. Do you lower the backlight after the repair in order for the leds to last longer?
      Apologies, I shortened all the tracking info from the link and trimmed too much.
      https://www.aliexpress.com/item/1pc-...974173898.html

      I remove the LED with the heater but depending on how much solder is left I then remove all the leaded solder and replace with lead free.
      When attaching a new LED it's staying well within reflow temperature parameters.

      Yes I turn down the back light.

      Comment


        #23
        Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

        Originally posted by diif View Post
        Apologies, I shortened all the tracking info from the link and trimmed too much.
        https://www.aliexpress.com/item/1pc-...974173898.html

        I remove the LED with the heater but depending on how much solder is left I then remove all the leaded solder and replace with lead free.
        When attaching a new LED it's staying well within reflow temperature parameters.

        Yes I turn down the back light.
        Do you replace the shorted LEDs, or do you replace every LED in the strip, even the good ones with new? Plus, isn't in more convinient to use liquid solder?
        Last edited by WhiteWolfHellas; 06-13-2019, 04:28 AM.

        Comment


          #24
          Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

          Just the damaged ones usually.
          The LED strip is resting on a hotplate, the solder is liquid.

          Comment


            #25
            Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

            Originally posted by diif View Post
            Just the damaged ones usually.
            The LED strip is resting on a hotplate, the solder is liquid.
            Just the damaged ones only? Strange that you haven't got returns because the old ones tend to die shortly after. I have had returns by replacing just the damaged ones so I stopped using this repair method.

            Comment


              #26
              Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

              Originally posted by WhiteWolfHellas View Post
              Just the damaged ones only? Strange that you haven't got returns because the old ones tend to die shortly after. I have had returns by replacing just the damaged ones so I stopped using this repair method.
              Not really, after repairing the failed ones I run the backlights at 100% for 24 hours. Any further failures are replaced before they are turned down.

              Comment


                #27
                Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

                Originally posted by diif View Post
                Not really, after repairing the failed ones I run the backlights at 100% for 24 hours. Any further failures are replaced before they are turned down.
                Is it guaranteed that with this method (replacing just the dead ones and leaving the TV on at 100% backlight for 24 hours) the about to die old ones will die for sure? I mean what if you stress them and they die a week down the line? You'll have to repeat the proccess.

                Comment


                  #28
                  Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

                  Originally posted by WhiteWolfHellas View Post
                  Is it guaranteed that with this method (replacing just the dead ones and leaving the TV on at 100% backlight for 24 hours) the about to die old ones will die for sure? I mean what if you stress them and they die a week down the line? You'll have to repeat the proccess.
                  I warranty my work but nothing is every guaranteed, even new can fail.
                  If I stress them and they die in a week I replace them, but I haven't had to yet.

                  Comment


                    #29
                    Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

                    Originally posted by diif View Post
                    I warranty my work but nothing is every guaranteed, even new can fail.
                    If I stress them and they die in a week I replace them, but I haven't had to yet.
                    So, for example in a 10 led strips TV, only 3 leds are burned out. You just replace the 3 leds, leave the TV on at 100% backlight for 24 hours and if there are more to die, they die, you replace them and leave the TV on for another 24 hours? If it still works, you assemble the TV and call it a day?

                    Comment


                      #30
                      Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

                      I do use a bench power supply for my testing so perhaps they are failing then rather than with the TV powering then. I haven't had any failures when testing for 24 hours

                      Comment


                        #31
                        Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

                        https://www.aliexpress.com/item/32974173898.html

                        item #32974173898
                        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


                          #32
                          Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

                          Originally posted by budm View Post
                          They work better if the screws and feet are mounted the other way round so they raise the plate off the worktop and the narrow middle piece is used for the heat rather than the larger size.
                          I have a thermocouple jammed inside to get an idea of the temperature.
                          I intent do connect it to a PID and a relay for slightly better control but it doesn't burn FR4 unless it's left on too long.

                          Comment


                            #33
                            Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

                            They sure have lots of 230V version, 120V seems to be hard to come by on Ali.
                            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


                              #34
                              Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

                              Here is a 24 volt version of it

                              It not quite the same size but it should work

                              I ordered 10 of them

                              http://s.aliexpress.com/uie6nue2
                              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: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

                                Originally posted by budm View Post
                                They sure have lots of 230V version, 120V seems to be hard to come by on Ali.
                                Is it because they are not affected by the voltage difference ? I tried controlling my PTC with a variac but it still got the same temperature.
                                Yes can confirm, setting the voltage to 120V with my variac and the heater still gets to temperature.

                                Originally posted by sam_sam_sam View Post
                                Here is a 24 volt version of it

                                It not quite the same size but it should work

                                I ordered 10 of them

                                http://s.aliexpress.com/uie6nue2
                                Yes, I looked at those, then wondered how I would mount them.

                                Comment


                                  #36
                                  Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

                                  sale starts in 2 days - $4!!
                                  https://www.aliexpress.com/item/32974173898.html

                                  Comment


                                    #37
                                    Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

                                    Originally posted by stj View Post
                                    It was £3.50 at the beginning of the week. Nothing like putting the price up just before a sale !

                                    Comment


                                      #38
                                      Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

                                      i said $, not £

                                      Comment


                                        #39
                                        Re: ShopJimmy LED Strip Rework Station - Single LED Replacement Tool

                                        Originally posted by diif View Post
                                        Is it because they are not affected by the voltage difference ? I tried controlling my PTC with a variac but it still got the same temperature.
                                        Yes can confirm, setting the voltage to 120V with my variac and the heater still gets to temperature.

                                        Yes, I looked at those, then wondered how I would mount them.
                                        Thanks for testing it out at 120VAC, I will order a couple to play with.
                                        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

                                        Working...
                                        X