Insignia NSLCD32 help.

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  • ivtec
    Badcaps Legend
    • Dec 2008
    • 1967
    • USA

    #1

    Insignia NSLCD32 help.

    Hi guys;another LCD tv saved from dumpster;i just resolver all critic joints on the power board,Tv works great,except it takes 2 or 3 pushes on the power button to turn on tv,has this to do with the start up cap? can someone point me to the start up cap,or something-else i could look over?thanks
    Attached Files
  • ivtec
    Badcaps Legend
    • Dec 2008
    • 1967
    • USA

    #2
    Re: Insignia NSLCD32 help.

    Originally posted by ivtec
    Hi guys;another LCD tv saved from dumpster;i just resolver all critic joints on the power board,Tv works great,except it takes 2 or 3 pushes on the power button to turn on tv,has this to do with the start up cap? can someone point me to the start up cap,or something-else i could look over?thanks
    https://www.badcaps.net/forum/showthread.php?t=20732

    Comment

    • ivtec
      Badcaps Legend
      • Dec 2008
      • 1967
      • USA

      #3
      Re: Insignia NSLCD32 help.

      Hi guys; can i use a Capacitor 180uf 450v in place of 150UF 450v?

      Comment

      • ivtec
        Badcaps Legend
        • Dec 2008
        • 1967
        • USA

        #4
        Re: Insignia NSLCD32 help.

        Any help on this TV issue? iy takes 2 or 3 pushes on the power button to turn on tv.

        Comment

        • attainteddragon
          Badcaps Veteran
          • Apr 2013
          • 764
          • australia

          #5
          Re: Insignia NSLCD32 help.

          check to see if stby is stable, then check if the voltage on the main cap is stable. after that, check if your ps/on voltage is changing states when you activate power, and remains stable.
          WHY CAN'T PHILIPS USE PHILLIPS HEAD SCREWS?

          Comment

          • ivtec
            Badcaps Legend
            • Dec 2008
            • 1967
            • USA

            #6
            Re: Insignia NSLCD32 help.

            Originally posted by attainteddragon
            check to see if stby is stable, then check if the voltage on the main cap is stable. after that, check if your ps/on voltage is changing states when you activate power, and remains stable.
            Thanks attainteddragon;i changed all suspected Caps including the 150uf 450v for a 180uf 450 and now tv is harder to turn on tv need alot more pushes in the power button,and only turns on when it wants ,no 5v,3.3v,24v none of the output volts are there,also there is no standby red led on as it should be when pressing power button,checked the 180Uf 450v and i get 167v,can you please mark on the board what points i should test,and can i test volts with power supply out of the tv just connected to the mains cord ? thanks
            Attached Files
            Last edited by ivtec; 08-22-2017, 09:18 AM.

            Comment

            • budm
              Badcaps Legend
              • Feb 2010
              • 40746
              • USA

              #7
              Re: Insignia NSLCD32 help.

              There are pin names of those white connectors, you need to put down pin names and follow by the DCV reading of each pin so we can see what you have right now.
              Is this the exact board?
              http://www.shopjimmy.com/insignia-66...pply-unit.htm#
              Last edited by budm; 08-22-2017, 09:38 AM.
              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

              • ivtec
                Badcaps Legend
                • Dec 2008
                • 1967
                • USA

                #8
                Re: Insignia NSLCD32 help.

                Originally posted by budm
                There are pin names of those white connectors, you need to put down pin names and follow by the DCV reading of each pin so we can see what you have right now.
                Is this the exact board?
                http://www.shopjimmy.com/insignia-66...pply-unit.htm#
                Thanks budm; exactly those white connectors have no voltages at all,only have the necessary output voltages when tv fires up,when i plug the cord i should have a red power supply led and i don't have it,maybe the standby regulator is bad or the stand by transformer or the start up resistor or cap,i don't have a scheme so is hard for a low skill person like me to check that out without some guidance from you experts at this forum, that had help me out through all these years,and i had fixed all my tvs with all of your expertise,without it i wouldn't have learned what i know.

                Comment

                • attainteddragon
                  Badcaps Veteran
                  • Apr 2013
                  • 764
                  • australia

                  #9
                  Re: Insignia NSLCD32 help.

                  we still need the voltages on the connector that goes to the main.
                  pin description, v in stby, v after power button is pressed.

                  if you have absolutely no stby voltage at all. disconnect the main board and then check to see if your stby voltage then comes up.
                  WHY CAN'T PHILIPS USE PHILLIPS HEAD SCREWS?

                  Comment

                  • ivtec
                    Badcaps Legend
                    • Dec 2008
                    • 1967
                    • USA

                    #10
                    Re: Insignia NSLCD32 help.

                    Originally posted by attainteddragon
                    we still need the voltages on the connector that goes to the main.
                    pin description, v in stby, v after power button is pressed.

                    if you have absolutely no stby voltage at all. disconnect the main board and then check to see if your stby voltage then comes up.
                    I don't have no voltages on the output to main or any other board, even when i unplug all the connectors,as i said now after i changed all suspected caps it's harder to turn tv on it takes many pushes on the power button in order to fire up tv,then it does it has all voltages on the output to the boards ,i don't have the remote control to check if it turns on with the remote,strange though is that when i plug in the power cord i should have a red led and i don't,as i said i have 167v at big Cap and at the bridge rectifier.
                    Can i connect the power to the board out of the TV and check voltages without load?i guess some voltages can't be checked without main board connection! any input would be appreciated, thanks for your patience
                    Last edited by ivtec; 08-23-2017, 08:21 AM.

                    Comment

                    • ivtec
                      Badcaps Legend
                      • Dec 2008
                      • 1967
                      • USA

                      #11
                      Re: Insignia NSLCD32 help.

                      Originally posted by ivtec
                      I don't have no voltages on the output to main or any other board, even when i unplug all the connectors,as i said now after i changed all suspected caps it's harder to turn tv on it takes many pushes on the power button in order to fire up tv,then it does it has all voltages on the output to the boards ,i don't have the remote control to check if it turns on with the remote,strange though is that when i plug in the power cord i should have a red led and i don't,as i said i have 167v at big Cap and at the bridge rectifier.
                      Can i connect the power to the board out of the TV and check voltages without load?i guess some voltages can't be checked without main board connection! any input would be appreciated, thanks for your patience
                      Hi guys here pics of my Power Board.
                      Attached Files

                      Comment

                      • maxvalutech
                        Badcaps Veteran
                        • Dec 2014
                        • 804
                        • australia

                        #12
                        Re: Insignia NSLCD32 help.

                        I would think the big cap on your power board should churn out closer to 400v when all turned on - are you measuring legs of cap (hard to do with this mounting when assembled).

                        Comment

                        • vinceroger69
                          Badcaps Legend
                          • Mar 2012
                          • 6714
                          • uk

                          #13
                          Re: Insignia NSLCD32 help.

                          theres not much in regards to pin markings on this psu there is two that say 5V and ON i wonder if you jump these two with a 1 k resistor will the other supplies come up then hopefully budm etc can advise before you try it.

                          Comment

                          • attainteddragon
                            Badcaps Veteran
                            • Apr 2013
                            • 764
                            • australia

                            #14
                            Re: Insignia NSLCD32 help.

                            this may be nothing but this cap is discoloured and have you checked this fuse.

                            also saw a few bad joints on the back.

                            pics aren't great, so i struggled to work out much of the stby circuit, and couldn't find a schematic anywhere.
                            Attached Files
                            WHY CAN'T PHILIPS USE PHILLIPS HEAD SCREWS?

                            Comment

                            • vinceroger69
                              Badcaps Legend
                              • Mar 2012
                              • 6714
                              • uk

                              #15
                              Re: Insignia NSLCD32 help.

                              Originally posted by attainteddragon
                              this may be nothing but this cap is discoloured and have you checked this fuse.

                              also saw a few bad joints on the back.

                              pics aren't great, so i struggled to work out much of the stby circuit, and couldn't find a schematic anywhere.
                              the link budm provided by shop jimmy has good zoomable pictures in maybe easier for you too trace the circuit?

                              Comment

                              • attainteddragon
                                Badcaps Veteran
                                • Apr 2013
                                • 764
                                • australia

                                #16
                                Re: Insignia NSLCD32 help.

                                that is heaps better, pity i'm not that good at tracing these things out.

                                what is the part number of n502?
                                WHY CAN'T PHILIPS USE PHILLIPS HEAD SCREWS?

                                Comment

                                • vinceroger69
                                  Badcaps Legend
                                  • Mar 2012
                                  • 6714
                                  • uk

                                  #17
                                  Re: Insignia NSLCD32 help.

                                  Originally posted by attainteddragon
                                  that is heaps better, pity i'm not that good at tracing these things out.

                                  what is the part number of n502?
                                  neither am i, it does show what each connector pin does so thats a bonus i guess

                                  Comment

                                  • budm
                                    Badcaps Legend
                                    • Feb 2010
                                    • 40746
                                    • USA

                                    #18
                                    Re: Insignia NSLCD32 help.

                                    The pins are marked on the bottom side of the board. So do you have at least the 5VDC? IOf no 5VSTBY then check those big resistors by the SMPS IC N502, and also two startup/running caps C521, and C??? next to C521.

                                    Pictures provided by shopjimmy.
                                    Attached Files
                                    Last edited by budm; 08-24-2017, 09:03 AM.
                                    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

                                    • ivtec
                                      Badcaps Legend
                                      • Dec 2008
                                      • 1967
                                      • USA

                                      #19
                                      Re: Insignia NSLCD32 help.

                                      Originally posted by budm
                                      The pins are marked on the bottom side of the board. So do you have at least the 5VDC? IOf no 5VSTBY then check those big resistors by the SMPS IC N502, and also two startup/running caps C521, and C??? next to C521.

                                      Pictures provided by shopjimmy.
                                      Thanks Budm ;Appreciate the good pics,
                                      Ok i checked R514=74 it's ok 75Homs
                                      Checked R520= 1.7 ohms it's ohms not OK should be 75 ohms,
                                      also checked R513=0.5 ohms not ok should be 15 ohms,
                                      here pic of the bad resistors ,i think!
                                      Attached Files

                                      Comment

                                      • budm
                                        Badcaps Legend
                                        • Feb 2010
                                        • 40746
                                        • USA

                                        #20
                                        Re: Insignia NSLCD32 help.

                                        R513 (in PFC section) is 0.15 Ohms resistor, it shows 0.5 Ohms on your meter because of your probes resistance.
                                        Try heating C521 and the cap next to it with hair dryer first and then apply the power to see if you will get the 5VDC back.
                                        Last edited by budm; 08-24-2017, 10:52 AM.
                                        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

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