when i turn on, Philliips TV is not on

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  • Nish
    Senior Member
    • Sep 2013
    • 124
    • Canada

    #81
    Re: when i turn on, Philliips TV is not on

    I test with continuity test The IC901

    Pin 8 is gnd So black probe on it and touch pin3 , it has beep. Also once I plug the board outlet and unplug check pin5 has beep for few min then stop.

    Comment

    • R_J
      Badcaps Legend
      • Jun 2012
      • 9515
      • Canada

      #82
      Re: when i turn on, Philliips TV is not on

      You can't check the ic with a meter.

      Comment

      • Nish
        Senior Member
        • Sep 2013
        • 124
        • Canada

        #83
        Re: when i turn on, Philliips TV is not on

        Quick question R_J: I see too many arduino scope online. Do you think I can use it here? If yes I can build one.

        Comment

        • Nish
          Senior Member
          • Sep 2013
          • 124
          • Canada

          #84
          Re: when i turn on, Philliips TV is not on

          Never mind, arduino is 5v one. I can't use it here
          Last edited by Nish; 01-18-2020, 12:16 PM.

          Comment

          • Nish
            Senior Member
            • Sep 2013
            • 124
            • Canada

            #85
            Re: when i turn on, Philliips TV is not on

            Is it useable to buy?
            https://www.newegg.ca/p/2A7-00BD-00018

            Comment

            • Nish
              Senior Member
              • Sep 2013
              • 124
              • Canada

              #86
              Re: when i turn on, Philliips TV is not on

              I found new IC and replaced it. I got 0.210v at C951A and going down. Now 0.183.

              Comment

              • nomoresonys
                Badcaps Legend
                • Jan 2013
                • 12083
                • U.S.

                #87
                Re: when i turn on, Philliips TV is not on

                If you had a 5 dollar esr tester you could have taken those caps out and tested them, as it stands you don't even know if they are good or not.

                Comment

                • vinceroger69
                  Badcaps Legend
                  • Mar 2012
                  • 6714
                  • uk

                  #88
                  Re: when i turn on, Philliips TV is not on

                  what is the power supply board number?

                  Comment

                  • Nish
                    Senior Member
                    • Sep 2013
                    • 124
                    • Canada

                    #89
                    Re: when i turn on, Philliips TV is not on

                    Originally posted by vinceroger69
                    what is the power supply board number?
                    dsp-484ap upbpspdel003

                    Comment

                    • Nish
                      Senior Member
                      • Sep 2013
                      • 124
                      • Canada

                      #90
                      Re: when i turn on, Philliips TV is not on

                      Originally posted by nomoresonys
                      If you had a 5 dollar esr tester you could have taken those caps out and tested them, as it stands you don't even know if they are good or not.
                      I have one I will test and update soon

                      Comment

                      • Nish
                        Senior Member
                        • Sep 2013
                        • 124
                        • Canada

                        #91
                        Re: when i turn on, Philliips TV is not on

                        Can I buy this power supply?


                        https://www.ebay.ca/itm/TV-Power-Sup...sAAOSwwqVcD9IR

                        Comment

                        • Nish
                          Senior Member
                          • Sep 2013
                          • 124
                          • Canada

                          #92
                          Re: when i turn on, Philliips TV is not on

                          Originally posted by nomoresonys
                          If you had a 5 dollar esr tester you could have taken those caps out and tested them, as it stands you don't even know if they are good or not.
                          C951A = 0.036 (10v 1000uF)
                          C951B = 0.027 (10v 1000uF)
                          C952 = 0.062 (10v 1000uF)

                          C912 = 0.573 (100v 22uF)
                          C906 = 0.042 (35v 220uF)


                          Is it possible to get replacement IC for DNP005 (IC901).

                          Comment

                          • R_J
                            Badcaps Legend
                            • Jun 2012
                            • 9515
                            • Canada

                            #93
                            Re: when i turn on, Philliips TV is not on

                            Originally posted by Nish
                            Is it possible to get replacement IC for DNP005 (IC901).
                            Where did you get the ic that is in there now after the original blew up?
                            Maybe that has been the problem all along. There is no datasheet on this ic, so it's hard to know the specs (operating frequency etc.)

                            Comment

                            • Nish
                              Senior Member
                              • Sep 2013
                              • 124
                              • Canada

                              #94
                              Re: when i turn on, Philliips TV is not on

                              I bought using ebay and from China.

                              R_J: is there any scope that I can get for 200. I know most of it above 350.
                              Last edited by Nish; 01-19-2020, 08:44 PM.

                              Comment

                              • budm
                                Badcaps Legend
                                • Feb 2010
                                • 40746
                                • USA

                                #95
                                Re: when i turn on, Philliips TV is not on

                                Post #92
                                "Is it possible to get replacement IC for DNP005 (IC901)."
                                But you said you already replace it, so what did you replace it with?
                                Post #86:
                                "I found new IC and replaced it. I got 0.210v at C951A and going down. Now 0.183."
                                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

                                • Nish
                                  Senior Member
                                  • Sep 2013
                                  • 124
                                  • Canada

                                  #96
                                  Re: when i turn on, Philliips TV is not on

                                  Originally posted by budm
                                  Post #92
                                  "Is it possible to get replacement IC for DNP005 (IC901)."
                                  But you said you already replace it, so what did you replace it with?
                                  Post #86:
                                  "I found new IC and replaced it. I got 0.210v at C951A and going down. Now 0.183."
                                  I bought 3 of DNP005. I blow out and I had extra to replace again

                                  Comment

                                  • Nish
                                    Senior Member
                                    • Sep 2013
                                    • 124
                                    • Canada

                                    #97
                                    Re: when i turn on, Philliips TV is not on

                                    Quick question : ZD907 (UDZSTE-17), it's zener diode. Is it 5.6v or 15v? It's in the standby circuit.
                                    Last edited by Nish; 01-24-2020, 02:34 PM.

                                    Comment

                                    • R_J
                                      Badcaps Legend
                                      • Jun 2012
                                      • 9515
                                      • Canada

                                      #98
                                      Re: when i turn on, Philliips TV is not on

                                      ZD907 is a PDZ13b, 13volt zener

                                      Comment

                                      • Nish
                                        Senior Member
                                        • Sep 2013
                                        • 124
                                        • Canada

                                        #99
                                        Re: when i turn on, Philliips TV is not on

                                        Sorry I want to know ZD904 (UDZSTE-17). Is it 5.6v or 15v? Near C912

                                        Comment

                                        • R_J
                                          Badcaps Legend
                                          • Jun 2012
                                          • 9515
                                          • Canada

                                          #100
                                          Re: when i turn on, Philliips TV is not on

                                          What is the number or letter on the diode? You may need to clean the top with alcohol to read it,
                                          There is no datasheet for the ic, but C912 is rated for 100v so this ic's VCC might be higher than other similar pwm ic's.
                                          Last edited by R_J; 01-24-2020, 05:50 PM.

                                          Comment

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