Interesting home-built TAB bonding machine

Collapse
X
Collapse
 
  • Page of 3
  • Time
  • Show
Clear All
new posts
Previous 1 2 3 template Next
  • Th3_uN1Qu3
    Believe in
    • Jul 2010
    • 6031
    • Romania
    #1

    Interesting home-built TAB bonding machine

    https://www.youtube.com/watch?v=QtY1QH120-I

    Looks like i haven't been the only Romanian with this idea. I find it pretty amazing how the tab is completely removed and then bonded back on, and the TV works afterwards! I wasn't thinking of actually removing the TAB connection, but rather just re-applying pressure and heat to "reflow" it in a way. But it seems that the actual replacement of TAB drivers is possible.
    Originally posted by PeteS in CA
    Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
    A working TV? How boring!
    Tags: None
    • retiredcaps
      Badcaps Legend
      • Apr 2010
      • 9271
      #2
      Re: Interesting home-built TAB bonding machine

      Too bad the person doesn't explain or comment on what he is doing??
      --- begin sig file ---

      If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

      We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

      Please do not post inline and offsite as they slow down the loading of pages.

      --- end sig file ---

        Comment

        • Th3_uN1Qu3
          Believe in
          • Jul 2010
          • 6031
          • Romania
          #3
          Re: Interesting home-built TAB bonding machine

          Well it's kinda self-explanatory. I have been studying the TAB bonding process lately and gathering as much information as i could. They are basically pressure bonded. Apply a set amount of pressure, apply heat, done.

          I believe the equipment to rework this is like BGA reworking equipment - large, automated professional machines are extremely expensive, but much cheaper options are available if you don't need to do a lot of them quickly. I think i can build something like shown in the video.
          Originally posted by PeteS in CA
          Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
          A working TV? How boring!

            Comment

            • retiredcaps
              Badcaps Legend
              • Apr 2010
              • 9271
              #4
              Re: Interesting home-built TAB bonding machine

              Originally posted by Th3_uN1Qu3
              Well it's kinda self-explanatory.
              Really??

              It may be obvious to you since you are studying it and yes I know what he is obviously trying to fix, but he doesn't tell you anything about the procedures, the materials used, the process, the time it takes, success rate, cost, tools, why this is better than another method, longevity, etc.
              --- begin sig file ---

              If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

              We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

              Please do not post inline and offsite as they slow down the loading of pages.

              --- end sig file ---

                Comment

                • CapLeaker
                  Leaking Member
                  • Dec 2014
                  • 7969
                  • Canada
                  #5
                  Re: Interesting home-built TAB bonding machine

                  apparently he cleaned the surface with alcohol, the pressure heat combination, O.k. Question is how much pressure and heat? What kind of glue did he use?

                    Comment

                    • AFajitas
                      Senior Member
                      • Dec 2014
                      • 183
                      • USA
                      #6
                      Re: Interesting home-built TAB bonding machine

                      This could be big for us if we can replicate it. I just started taking in TV's this year and already have two with a tab bonding issue.

                      I have a Sony 52 inch that I'm willing to use as a guinea pig.

                        Comment

                        • tom66
                          EVs Rule
                          • Apr 2011
                          • 32560
                          • UK
                          #7
                          Re: Interesting home-built TAB bonding machine

                          How is the alignment managed?
                          Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
                          For service manual, schematic, boardview (board view), datasheet, cad - use our search.

                            Comment

                            • multimeter
                              Badcaps Veteran
                              • Jan 2011
                              • 739
                              • united kingdom
                              #8
                              Re: Interesting home-built TAB bonding machine

                              Originally posted by tom66
                              How is the alignment managed?
                              didnt he use a usb type microscope which the image was shown on the tv he was watching?,i liked that idea
                              fixed so far...376 lg lcd tv's,24 onn tv;s,24 panasonic lcd,16 jvc lcd,12 marshall jcm800 amps,refurb of various disco equipment lighting,old style disco decks ,and a flymo!

                              ----------------------------------------------
                              please let us know if everything works ok if your tv gets fixed, as it will be and aid for anyone else having the same problem and wishing to fix it.it would save people clogging up this site with topics that are duplicated,and can be found easily using the search function.,and taking up valuable space.enjoy your fixed tv!,hopefully!

                                Comment

                                • SteveNielsen
                                  Retired Tech
                                  • Jun 2012
                                  • 2327
                                  • USA
                                  #9
                                  Re: Interesting home-built TAB bonding machine

                                  can't see thru his hand

                                    Comment

                                    • zomi
                                      Badcaps Veteran
                                      • Nov 2011
                                      • 505
                                      #10
                                      Re: Interesting home-built TAB bonding machine

                                      Yes he is using usb type microscope for alignment.
                                      HAs a decent working distance too on the microscope too...
                                      He has his email in the video anyone contacted him. ?

                                        Comment

                                        • AFajitas
                                          Senior Member
                                          • Dec 2014
                                          • 183
                                          • USA
                                          #11
                                          Re: Interesting home-built TAB bonding machine

                                          I emailed him today and will keep you gents updated.

                                            Comment

                                            • tibimakai
                                              Badcaps Legend
                                              • Jan 2012
                                              • 3680
                                              • USA
                                              #12
                                              Re: Interesting home-built TAB bonding machine

                                              Here you can see the temperatures and times:
                                              https://www.youtube.com/watch?v=_D9UCaXBhN4
                                              220-227 C and 15 sec.
                                              They use ASF tape.

                                                Comment

                                                • tibimakai
                                                  Badcaps Legend
                                                  • Jan 2012
                                                  • 3680
                                                  • USA
                                                  #13
                                                  Re: Interesting home-built TAB bonding machine

                                                  https://www.youtube.com/watch?v=OCiTKtRBtlk

                                                    Comment

                                                    • tibimakai
                                                      Badcaps Legend
                                                      • Jan 2012
                                                      • 3680
                                                      • USA
                                                      #14
                                                      Re: Interesting home-built TAB bonding machine

                                                      http://www.avsforum.com/forum/166-lc...ab-repair.html

                                                      From where can we purchase new tabs?
                                                      I have one that has a hole in it. I need to replace it.

                                                        Comment

                                                        • budm
                                                          Badcaps Legend
                                                          • Feb 2010
                                                          • 40746
                                                          • USA
                                                          #15
                                                          Re: Interesting home-built TAB bonding machine

                                                          Too bad his hand is in the way to see what is going on.
                                                          Last edited by budm; 01-09-2015, 03:47 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

                                                            • lookimback
                                                              Badcaps Legend
                                                              • Aug 2013
                                                              • 1489
                                                              • USA
                                                              #16
                                                              Re: Interesting home-built TAB bonding machine

                                                              I've tried just reheating them, it doesn't work. The anisotropic tape is one time use. Only thing that's stopped me from attempting any replacement with new tape is the cost of the tape, and the fact that it has a short shelf life. I believe it also must be kept refrigerated.
                                                              ------------signature starts here------------


                                                                Comment

                                                                • lookimback
                                                                  Badcaps Legend
                                                                  • Aug 2013
                                                                  • 1489
                                                                  • USA
                                                                  #17
                                                                  Re: Interesting home-built TAB bonding machine

                                                                  I think when his hand was in the way, he was cleaning and prepping the surface. Now if someone can create a method for repairing scratches, that would make me happy.
                                                                  ------------signature starts here------------


                                                                    Comment

                                                                    • lookimback
                                                                      Badcaps Legend
                                                                      • Aug 2013
                                                                      • 1489
                                                                      • USA
                                                                      #18
                                                                      Re: Interesting home-built TAB bonding machine

                                                                      I found this to be quite informative.
                                                                      https://www.youtube.com/watch?v=biHFJFHpqdM
                                                                      ------------signature starts here------------


                                                                        Comment

                                                                        • budm
                                                                          Badcaps Legend
                                                                          • Feb 2010
                                                                          • 40746
                                                                          • USA
                                                                          #19
                                                                          Re: Interesting home-built TAB bonding machine

                                                                          Very interesting indeed, but to re-do the tab bonding then I wonder what you have to use to remove the old epoxy adhesive first.
                                                                          Last edited by budm; 01-09-2015, 08:35 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

                                                                            • lookimback
                                                                              Badcaps Legend
                                                                              • Aug 2013
                                                                              • 1489
                                                                              • USA
                                                                              #20
                                                                              Re: Interesting home-built TAB bonding machine

                                                                              I'll see what I can find on that. As for tabs, I've heard of reusing ones from cracked LCDs.
                                                                              ------------signature starts here------------


                                                                                Comment

                                                                                Previous 1 2 3 template Next

                                                                                Related Topics

                                                                                Collapse
                                                                                • sam_sam_sam
                                                                                  I just bought a SkyRc MC3000 battery testing machine very interesting device temp
                                                                                  by sam_sam_sam
                                                                                  I just bought this device that came in the mail today I put a set of 4 brand new 21700 high current battery on the charger

                                                                                  The charger has four individual temperature sensors for each battery cell
                                                                                  The bar graph for each individual battery cell is very primitive but will give you a good idea of how each battery cell is preforming and I find something odd I put on the individual battery testing machine that gives more details of the charging/discharging curves but it will be quicker to just charge and discharge battery cells that do not have any issues

                                                                                  Or test...
                                                                                  09-14-2022, 07:12 PM
                                                                                • Document Archive
                                                                                  ALIENWARE Steam Machine R2 i7-6700T Specification for Upgrade or Repair
                                                                                  by Document Archive
                                                                                  This specification for the ALIENWARE Steam Machine R2 can be useful for upgrading or repairing a desktop PC that is not working. As a community we are working through our specifications to add valuable data like the Steam Machine R2 boardview and Steam Machine R2 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...
                                                                                  09-12-2024, 03:28 PM
                                                                                • CG2
                                                                                  Janome DC3050 Sewing Machine Pedal Resistance
                                                                                  by CG2
                                                                                  OK, this is a long shot. I got this sewing machine cheap because it's end of line, ex-display, and had no pedal. The genuine pedal costs £60, while Ebay knock-offs go for around £15. So I went for the knock-off, it doesn't work, and I'm not sure whether it's the pedal or the sewing machine that has the problem.

                                                                                  Now this is an electronic machine, unlike the old fashioned sort where the pedal was a big resistor in series with the power to the motor. Here, the pedal is just (I think) a variable resistor fed with a 5 volt supply, and limited to a current of 5 milliamps. Assuming that...
                                                                                  04-14-2023, 07:53 AM
                                                                                • Soulzink
                                                                                  Samsug washing machine. Power supply DC41-00189a board issue
                                                                                  by Soulzink
                                                                                  Hi everyone,

                                                                                  I am trying to fix a samsung washinmachine power supply main board.
                                                                                  I already replaced it with another one to fix the machine but i want to try understand the issue with the old board.
                                                                                  Therefore i hope to be able to get some help to explain what to check in order to troubleshoot.
                                                                                  The power supply board reference is the following: DC41-00189a
                                                                                  I have followed one thread (https://www.badcaps.net/forum/troubl...ingmachine-rel...
                                                                                  04-19-2025, 06:26 AM
                                                                                • unimatrix93
                                                                                  How to stabilize AC voltage to CNC machine
                                                                                  by unimatrix93
                                                                                  Hello there everybody, I'm not sure if it's the right topic to ask this but I hope so.


                                                                                  I have a CNC machine wired to 3-phase 230V AC.

                                                                                  It's a smaller CNC machine with a 3500W motor, do it does not uses much power.

                                                                                  The problem is, when the residents come home and put load on the network, the voltage can drop to around 207V which is fine for most household items but by CNC machine stops working from this.

                                                                                  I contacted the electricity company but they refuse to help me solve this problem.

                                                                                  So I started to look around for some DIY...
                                                                                  03-17-2025, 05:52 AM
                                                                                • Loading...
                                                                                • No more items.
                                                                                Working...