0B3302CP Ic Datasheet ?

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  • ReeceyBurger123
    Never Give Up !
    • May 2014
    • 7325
    • Britain

    #1

    0B3302CP Ic Datasheet ?

    Hello badcappers, if anyone has the data sheet for the 0B3302CP I need it so that I can turn off the feedback protection to stop it turning the backlight off, the protection goes high due to a failed lamp and I dont want to have to replace it. Cheers.
    Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

    https://www.facebook.com/Telford-Tel...7894576335359/
  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK

    #2
    Re: 0B3302CP Ic Datasheet ?

    It's extremely rare for chip numbers to start with a digit. Generally the format is letters, usually two or three, then numbers, followed by a suffix (sometimes hyphenated)
    So check the part number is correct...
    Last edited by tom66; 10-29-2015, 11:07 AM.
    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

    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA

      #3
      Re: 0B3302CP Ic Datasheet ?

      Is it OB3302CP, not 0(zero)B3302CP?
      http://www.datasheet-pdf.info/entry/OB3302CP
      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

      • ReeceyBurger123
        Never Give Up !
        • May 2014
        • 7325
        • Britain

        #4
        Re: 0B3302CP Ic Datasheet ?

        Double post ignore.
        Last edited by ReeceyBurger123; 10-29-2015, 12:24 PM.
        Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

        https://www.facebook.com/Telford-Tel...7894576335359/

        Comment

        • ReeceyBurger123
          Never Give Up !
          • May 2014
          • 7325
          • Britain

          #5
          Re: 0B3302CP Ic Datasheet ?

          Whoops, should have used a MS ! Thanks anyway chaps I found the protection pin and removed a small ceramic cap to turn it off, I made a small diagram which is what helped me. Going to do a youtube video as the tv this is for is very problematic.
          Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

          https://www.facebook.com/Telford-Tel...7894576335359/

          Comment

          • fzabkar
            Badcaps Veteran
            • Mar 2009
            • 772
            • Australia

            #6
            Re: 0B3302CP Ic Datasheet ?

            Here is a circuit that uses the OB3302:

            Comment

            • ReeceyBurger123
              Never Give Up !
              • May 2014
              • 7325
              • Britain

              #7
              Re: 0B3302CP Ic Datasheet ?

              Thanks everyone for the input
              Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

              https://www.facebook.com/Telford-Tel...7894576335359/

              Comment

              • playgoods
                Member
                • Jan 2014
                • 16
                • South Africa

                #8
                Re: 0B3302CP Ic Datasheet ?

                Originally posted by ReeceyBurger123
                Whoops, should have used a MS ! Thanks anyway chaps I found the protection pin and removed a small ceramic cap to turn it off, I made a small diagram which is what helped me. Going to do a youtube video as the tv this is for is very problematic.
                Hi which pin is the protection? Feedback pin?

                Comment

                • budm
                  Badcaps Legend
                  • Feb 2010
                  • 40746
                  • USA

                  #9
                  Re: 0B3302CP Ic Datasheet ?

                  Pin 2 CMP/SST.
                  You will do that for testing PURPOSE ONLY!
                  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

                  • tom66
                    EVs Rule
                    • Apr 2011
                    • 32560
                    • UK

                    #10
                    Re: 0B3302CP Ic Datasheet ?

                    Yes be very careful as fire is possible if left alone like this. Depends on the set... Some can be okay. But not worth the risk.
                    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

                    • ReeceyBurger123
                      Never Give Up !
                      • May 2014
                      • 7325
                      • Britain

                      #11
                      Re: 0B3302CP Ic Datasheet ?

                      Ive done a few like this no houses burnt down yet
                      Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

                      https://www.facebook.com/Telford-Tel...7894576335359/

                      Comment

                      • playgoods
                        Member
                        • Jan 2014
                        • 16
                        • South Africa

                        #12
                        Re: 0B3302CP Ic Datasheet ?

                        So you disconnect pin 2?
                        I disconnected pin 7 and the backlights still went out

                        Comment

                        • playgoods
                          Member
                          • Jan 2014
                          • 16
                          • South Africa

                          #13
                          Re: 0B3302CP Ic Datasheet ?

                          I removed the smd cap going to pin 2. I still only get pic for a couple of seconds.
                          Could the OM3302 be faulty?

                          Comment

                          • tom66
                            EVs Rule
                            • Apr 2011
                            • 32560
                            • UK

                            #14
                            Re: 0B3302CP Ic Datasheet ?

                            Originally posted by ReeceyBurger123
                            Ive done a few like this no houses burnt down yet
                            I hope you don't sell them... the only ones like this I've done I've given to friends and told them to let me know if anything goes bad. One blew a transformer after a few months, the other is still good.
                            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

                            • tom66
                              EVs Rule
                              • Apr 2011
                              • 32560
                              • UK

                              #15
                              Re: 0B3302CP Ic Datasheet ?

                              Originally posted by playgoods
                              I removed the smd cap going to pin 2. I still only get pic for a couple of seconds.
                              Could the OM3302 be faulty?
                              You would want to short the cap as the test, this is the timeout capacitor, so shorting it makes it seem as if it has infinite capacitance.
                              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

                              • playgoods
                                Member
                                • Jan 2014
                                • 16
                                • South Africa

                                #16
                                Re: 0B3302CP Ic Datasheet ?

                                Originally posted by tom66
                                You would want to short the cap as the test, this is the timeout capacitor, so shorting it makes it seem as if it has infinite capacitance.
                                With it shorted the backlights will not come on at all.

                                Comment

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