Need help identifying...

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • newtothis
    Badcaps Legend
    • Mar 2013
    • 1556
    • england
    #1

    Need help identifying...

    I have decided to try and repair a liquid damaged phone, I have done the usual procedures of flushing with IPA and cleaning... This has allowed power to get to the on off switch and other components but still the phone is dead.

    I obtained a service manual for the phone which is a Samsung Galaxy S3 and followed the problem solving guide to which i found out that i needed to replace a component. This is where it gets problematic... there are no markings on the component and the service manual doesn't say exactly what it is other than referring to it as U501. I have asked about online and people pointed me towards a 3 pin package but the one in question is a 6 pin... I have uploaded a diagram of the package.. This I recognize as a Transistor but can't find one the same one anywhere.

    Can anyone help?

    Thanks
    Tags: None
    • newtothis
      Badcaps Legend
      • Mar 2013
      • 1556
      • england
      #2
      Re: Need help identifying...

      Hmmph, Diagram didn't upload
      Attached Files

        Comment

        • budm
          Badcaps Legend
          • Feb 2010
          • 40746
          • USA
          #3
          Re: Need help identifying...

          Digital transistor, for example:
          https://cdn.badcaps-static.com/pdfs/...4a80404fbc.pdf
          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

            • newtothis
              Badcaps Legend
              • Mar 2013
              • 1556
              • england
              #4
              Re: Need help identifying...

              Going be fun figuring the specs of this! Hmm I'm going to try a high powered magnifying glass and double check for any markings!

                Comment

                • budm
                  Badcaps Legend
                  • Feb 2010
                  • 40746
                  • USA
                  #5
                  Re: Need help identifying...

                  Complementary digital transistor: This case style?
                  https://cdn.badcaps-static.com/pdfs/...d1e12e0401.pdf
                  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

                    • newtothis
                      Badcaps Legend
                      • Mar 2013
                      • 1556
                      • england
                      #6
                      Re: Need help identifying...

                      That is indeed the component!

                      Need to figure the resistance ratings now.

                      Cheers

                        Comment

                        • cmcraeslo
                          New Member
                          • Jan 2014
                          • 4
                          • Slovenia
                          #7
                          Re: Need help identifying...

                          Hey guys..

                          I'm too looking for U501 and have only found 3 pin packages. Did you guys find correct component as a replacement?

                          Thanks!

                            Comment

                            • dj_ricoh
                              Badcaps Legend
                              • Jan 2013
                              • 2073
                              • uk
                              #8
                              Re: Need help identifying...

                              let me guess first think you did was that you replace the usb charging connector?
                              Just cook it! It's already broken.

                                Comment

                                • cmcraeslo
                                  New Member
                                  • Jan 2014
                                  • 4
                                  • Slovenia
                                  #9
                                  Re: Need help identifying...

                                  Hey.

                                  Not exactly sure what your question was - I have a S3 that doesn't turn on. I was following the service manual procedures and found that there's no voltage on the capacitors & resistors mentioned there. Diagram says -> replace the U501. This is the 6 pin dual transistor which I can't find. I only have 1 3 pin package available. So I'm asking you guys if you found out a replacement for that.

                                  It could be that something else is also damaged but I will not know until I replace the U501 so I can continue the repair.

                                  Thanks!

                                    Comment

                                    • cmcraeslo
                                      New Member
                                      • Jan 2014
                                      • 4
                                      • Slovenia
                                      #10
                                      Re: Need help identifying...

                                      Anyone?

                                        Comment

                                        • budm
                                          Badcaps Legend
                                          • Feb 2010
                                          • 40746
                                          • USA
                                          #11
                                          Re: Need help identifying...

                                          So it is not the one in post 5?
                                          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

                                            • cmcraeslo
                                              New Member
                                              • Jan 2014
                                              • 4
                                              • Slovenia
                                              #12
                                              Re: Need help identifying...

                                              Well, I'm not sure, that's why I asked. Did someone confirm this?

                                                Comment

                                                Previous template Next

                                                Related Topics

                                                Collapse
                                                • SluggerB
                                                  Help with trying to fix phone that is not charging (Pics inside)
                                                  by SluggerB
                                                  I have two TCL A30 phones.

                                                  Old Phone: This phone worked fine for years, then stopped charging If you plugged a charger into it, the phone would make the charging sound, the phone would tell you it is charging, but the battery icon would not have the charging symbol in it and the battery would not charge.I tried new battery, same behavior.

                                                  New Phone: Works fine, bought as a donor board to try and repair Old Phone

                                                  My interest here is to repair Old Phone, using components parts off New Phone if needed. I am not interested in replacing Old Phone with New Phone....
                                                  08-12-2024, 08:11 AM
                                                • keeney123
                                                  new OS on a Sonim XP5s phone
                                                  by keeney123
                                                  To you programmers out there I want to know if it is possible to put a new OS on the Sonim XP5s phone? I only need this phone to make calls, receive calls, have a list of contacts and be able to call voice mail.
                                                  I bought this phone new Sep.2021 as an unlock phone from a third-party seller. The phone worked fine until Jan 2022. I then had intermittent problems with the sound setting resetting itself. One of the settings, outdoor, would go to silent all by itself. When in silent mode it does not indicate a call has come in. I missed very important phone calls. All the other setting in sound...
                                                  05-13-2022, 07:19 PM
                                                • rddube
                                                  Need help identifying 2 components - Acer cell phone Liquid Zest T06
                                                  by rddube
                                                  Hello everyone,

                                                  I am trying to identify what are these components?

                                                  #1 seems to be an inductor, but I get not reading when measuring it. #2 also seems to be an inductor and again no reading when I measure it. You can see a smaller inductor above #2 that has cracked and open.

                                                  Any help in identifying these 2 components would be welcome. I am pretty sure #2 is an inductor, but #1 shape is odd, and I am not sure. I also show a microscope view of each component.

                                                  Many thanks!...
                                                  05-30-2023, 05:16 AM
                                                • mikey5791
                                                  Help with Samsung Galaxy J7 Prime phone
                                                  by mikey5791
                                                  Hi all,
                                                  Got this smart phone free from a guy who dropped it hard until the lcd display cracked with no seen display.
                                                  Opened it and found the display ribbon cable partly damaged. I charged the phone full in 2 hours time, the led red light turns to green indicate full charge.
                                                  Then i use a usb cable connect the phone to laptop but it only showed as media player with firmware version. Too bad there is no option to check folder.

                                                  Does anyone know any method to check if the phone is working good? Looking forward for any advice and help possible.
                                                  If tested the...
                                                  09-15-2021, 07:54 PM
                                                • Dannyx
                                                  Cisco IP phone F-up
                                                  by Dannyx
                                                  Good day folks. I had a little f-up over at my new shop today and it made me pretty angry, but at the same time it determined me to try and figure out what could've happened there. This is only going to be a speculative discussion since I don't know the exact layout of our network, hence I don't know what's going on past our room. So:

                                                  The repair shop where I sit is situated in a remote building down the street from the main building. There's a Cisco IP phone in this room, a 7911, like the rest of the company uses. There's obviously some sort of networking going on between the two...
                                                  11-27-2018, 12:39 PM
                                                • Loading...
                                                • No more items.
                                                Working...