Help with HDMI chip identification !

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • 964758
    Member
    • Jul 2017
    • 36
    • Georgia

    #1

    Help with HDMI chip identification !

    Hi ! I've Samsung LE40B530P7WXRU. Doesn't works all HDMI. I want to change HDMI chip. Please help me with HDMI chip identification. Photo I attached. Many thanks in advance !


  • diif
    Badcaps Legend
    • Feb 2014
    • 6978
    • England

    #2
    Re: Help with HDMI chip identification !

    Possibly IC303. Put the markings on it into a search engine to confirm.

    Comment

    • 964758
      Member
      • Jul 2017
      • 36
      • Georgia

      #3
      Re: Help with HDMI chip identification !

      Thanks for reply ! Did you mean IC3003 ?
      Please see the picture, that I attached

      Comment

      • 964758
        Member
        • Jul 2017
        • 36
        • Georgia

        #4
        Re: Help with HDMI chip identification !

        The WT61P8 is a microcontroller for flat panel display control and power management with 1) Turbo 8052 CPU, 2) 64K bytes flash memory, 3) 1K+256 bytes SRAM, 4) 8 8-bit PWMs, 5) DPMS detector(2 H/V inputs, Support H+V input) , 6) 4 timers and 2 UART Ports, 7) 2 DDC/CI interface, 8) Slave I2C interface, 9) 8 channel 8-bit A/D converter, 10) Real Time Clock, 11) Watch-dog timer, 12) Embedded ISP function, 13) Power down mode, 14) Embedded ICE mode. 15) H/W CEC


        http://www.weltrend.com.tw/en-global...tail/66/77/220

        Comment

        • diif
          Badcaps Legend
          • Feb 2014
          • 6978
          • England

          #5
          Re: Help with HDMI chip identification !

          I did mean that IC but then I can't see the markings of the whole board.

          Comment

          • tom66
            EVs Rule
            • Apr 2011
            • 32560
            • UK

            #6
            Re: Help with HDMI chip identification !

            The D600x parts near the HDMI connectors are just protection diodes and unlikely to be the fault
            If the traces route themselves into the main processor, you have no chance of repairing it because that's probably BGA with custom firmware.
            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

            • 964758
              Member
              • Jul 2017
              • 36
              • Georgia

              #7
              Re: Help with HDMI chip identification !

              It is SEMS12 with 324 balls.

              Comment

              • dskall
                Badcaps Legend
                • Oct 2016
                • 2905
                • usa

                #8
                Re: Help with HDMI chip identification !

                Your hdmi ports look different. Have you examined ports for damage?
                I assume no responsibility for any stupid suggestions I might post.

                Comment

                • 964758
                  Member
                  • Jul 2017
                  • 36
                  • Georgia

                  #9
                  Re: Help with HDMI chip identification !

                  Yes I examined

                  Comment

                  • ngth82
                    Badcaps Veteran
                    • Jul 2015
                    • 541
                    • USA

                    #10
                    Re: Help with HDMI chip identification !

                    Can you post a clear picture of the entire main board?
                    See the top diff pair traces that go from each HDMI connector? They head north, but we need to see the entire board. follow those traces and that's where the HDMI controller is located.

                    EDIT: Did you pick this TV up, or is this TV yours? What happened to it?

                    Please post a picture of the entire board. How many HDMI ports do you have? only 2? 3? 4? Do any of the other ports work?

                    I'm curious because on some TV sets, HDMI 1/2 are passed through a HDMI multiplexer, while HDMI 3, for example, is a direct input to the video processor. If your TV has just an issue with an HDMI mux, then it's easy to just replace the SMT part and get going again.

                    If the inputs go directly to the video processor and neither ports work, then you'll have a tougher time trying to figure that out.

                    What have you tried doing so far? If you haven't already:

                    1. Ohm out the traces between the HDMI connector - check for shorts
                    2. Ohm out the trace between the HDMi connector, and the protection diodes.
                    3. Ohm out the protection diodes from one side to the other.
                    4. Ohm out the trace from the protection diode to the HDMI chip (which isn't shown in your pic).
                    5. Check the power supplies on the board - find the datasheet for the HDMI chip, and see if hte associated pins have power (measure across the capactors around the device).
                    6. post a picture of the entire main board so we can get a good idea of the topology.


                    Do that and report back

                    Thanks!
                    -Thomas
                    Last edited by ngth82; 07-30-2017, 01:48 PM.
                    -Thomas
                    I'm a hardware engineer focused on networking equipment for my day job. I void warranties and fix consumer electronics for fun.

                    Comment

                    • 964758
                      Member
                      • Jul 2017
                      • 36
                      • Georgia

                      #11
                      Re: Help with HDMI chip identification !

                      Many thanks for the reply ! But I don't have the board at this time. I take the photo from other board, where doesn't work TV tuner.

                      Comment

                      • mmartell
                        Badcaps Legend
                        • Oct 2013
                        • 3189
                        • Canada

                        #12
                        Re: Help with HDMI chip identification !

                        Follow the hdmi traces from the connectors. In your pic they disappear out the top of the pic. They either go to a switching ic or to a microprocessor, in which case the functions are integrated.

                        Comment

                        • 964758
                          Member
                          • Jul 2017
                          • 36
                          • Georgia

                          #13
                          Re: Help with HDMI chip identification !

                          Many thanks for reply !

                          Comment

                          • olegeisler
                            Senior Member
                            • Dec 2016
                            • 100
                            • Denmark

                            #14
                            Re: Help with HDMI chip identification !

                            It is a SEMS 12, located under the heatsink. Unless you have proper equipment + skills for BGA rework you are out if luck. The board can be found many places for 35-50USD.

                            Comment

                            • diif
                              Badcaps Legend
                              • Feb 2014
                              • 6978
                              • England

                              #15
                              Re: Help with HDMI chip identification !

                              SEMS12 are £3.50+ on Ali, I guess it depends on the OPs tools/skills, worth replacing before buying a mainboard.

                              Comment

                              • 964758
                                Member
                                • Jul 2017
                                • 36
                                • Georgia

                                #16
                                Re: Help with HDMI chip identification !

                                Originally posted by diif
                                worth replacing before buying a mainboard.
                                Thanks for reply ! I'm agree.

                                Comment

                                Related Topics

                                Collapse

                                • SMDFlea
                                  Common SPI bios chip programming Questions and Answers
                                  by SMDFlea
                                  Common SPI bios chip programming Questions and Answers
                                  ----------------------------------------------------------

                                  Q: I have a bios request,i can`t post my backup as i can`t read from the chip.

                                  A: If you can`t read from it how do you expect to write to it ?.

                                  Q: Why is my bios chip unreadable ?.

                                  A: The programmer is faulty or has a worn or broken zif socket.

                                  The USB cable is frayed,connector pins worn or some other physical damage.

                                  Not enough amperage or voltage to power the programmer properly.

                                  Bad...
                                  09-02-2021, 04:40 PM
                                • BMCappelletti
                                  Asus Chromebox CN62 - wrong chip put on BIOS reader
                                  by BMCappelletti
                                  Long story short:
                                  - dad converted Asus Chromebox CN62 into Windows compatible, with mrchromebox BIOS, years and years ago
                                  - gave the computer to his son a couple years later
                                  - son now decided to revert it to Chrome OS, to sell it as original (re-writing BIOS with the backup one created by his dad)
                                  - too lazy to remove the board from the case, thought a voltage regulator was the BIOS chip (you know... it has 8 legs)
                                  (seems like the story was not that short)

                                  He used alligator clips to read the chip. No luck reading it. Removed chip and placed on a SOC-8...
                                  01-08-2025, 07:27 PM
                                • acedogblast
                                  Guide to transplant MEC1503 EC chip and EEPROM reprogamming for T14s gen 2 and X13 gen 2
                                  by acedogblast
                                  This is a guide that I am writing for helping others to replace their MEC1503 EC chip if it breaks (or to get around an inconvenient prompt to the BIOS). This forum has been extremely helpful to me so I would like to contribute to help others. I will tell you right now that this task is very difficult to do. You MUST have experience and tools to do precision micro-soldering, BGA reballing, trace repair, and general laptop repair skills.

                                  There are some specialty tools needed to do this task. The replacement MEC1503 chips can be acquired from Aliexpress. Do not buy the bare chips as...
                                  11-02-2024, 05:13 PM
                                • GadgetsFix
                                  Looking for chip identification
                                  by GadgetsFix
                                  Hi guys,

                                  I am looking for some help identifying a chip.

                                  I have a
                                  MateBook X Pro MACH-W29 SP1MACHW19M VER B. I need to replace the chip in the photo. The identifying marks read: 7534 GA8T1T.

                                  Thank you for any help!

                                  02-27-2025, 11:13 AM
                                • inck243
                                  Acer e15-e5-576g-5762 bricked. Bios chip won't interface in AsProgrammer.
                                  by inck243
                                  Thanks for any help. The board version is DAZAARMB6E0 REV: E. The bios chip is winbond 25Q64JVSIQ1736. W25Q64JV is not available in AsProgrammer -- only BV CV FV or FW_1.8c. The chip won't interface with asProgrammer and a CH341A. When I have this chip on the board, the laptop will not post but when I plug it in to power, the blue LED lights up, also the orange when the battery is connected. When I push the power on button, keyboard backlight turns on and the fan starts briefely then turns off. But I can't do anything to program this bios chip so I bought another one.

                                  The BIOS...
                                  07-25-2024, 09:17 AM
                                • Loading...
                                • No more items.
                                Working...