KDL-60W600B won't open just Red Blinks 6 times

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  • Ali101
    Senior Member
    • Jul 2017
    • 152
    • Taiwan

    #81
    Re: KDL-60W600B won't open just Red Blinks 6 times

    Hi budm, IC6801 # printed on top is (Sony CXA3854M) & i search on web but can't find match # data sheet, below i found, so which one i should choose & how i check IC via Multimeter,
    Link#1: http://www.datasheet4u.com/share_sea...sWord=CXA3854M
    Link#2:

    Thanks.

    Comment

    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA

      #82
      Re: KDL-60W600B won't open just Red Blinks 6 times

      OK, I search the web and found SONY TV (KDL-xxW800 series RB1G chassis) uses power supply board that has CXA3854 IC on it, so we can at least check to see if it is getting the VCC of 12V at pin 24 or not when the TV is turned on.
      We can also find out if the BL-ON gets all the way to the EN pin 11 to turn on the IC or not.
      Attached Files
      Last edited by budm; 08-09-2017, 10:28 PM.
      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

      • Ali101
        Senior Member
        • Jul 2017
        • 152
        • Taiwan

        #83
        Re: KDL-60W600B won't open just Red Blinks 6 times

        Dear budm, many thanks for help, Appreciated, below is results for tests,
        Multi Meter set on 20 Dc range and On pin 24 plugin tv it show some time 1.5v and some time 2.4 and some.time 3.2 v after turn on tv it goes 4.7v than drop to 0.00 v, on pin 11 plugin tv it show 0.00v, turn on tv it goes 3.6v than drop to
        Thanks.
        Last edited by Ali101; 08-10-2017, 07:08 AM.

        Comment

        • Ali101
          Senior Member
          • Jul 2017
          • 152
          • Taiwan

          #84
          Re: KDL-60W600B won't open just Red Blinks 6 times

          @budm, so if IC6801 (Sony CXA3854M) not getting the VCC of 12V than does that means IC6801 have problem in PSU right?

          Comment

          • budm
            Badcaps Legend
            • Feb 2010
            • 40746
            • USA

            #85
            Re: KDL-60W600B won't open just Red Blinks 6 times

            Originally posted by Ali101
            @budm, so if IC6801 (Sony CXA3854M) not getting the VCC of 12V than does that means IC6801 have problem in PSU right?
            It means that the IC is not getting the Voltage for it to run.
            You must check the resistance between the VCC pin and Ground pin to see if it shows low resistance of less than 500 Ohms or so or not, it can also be that the resistor for feeding the 12V to VCC may be bad too.
            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

            • Ali101
              Senior Member
              • Jul 2017
              • 152
              • Taiwan

              #86
              Re: KDL-60W600B won't open just Red Blinks 6 times

              budm bro sorry but can you advise how to check resistance between the VCC pin and Ground pin? set multi meter on Ohms & put black prob on VCC pin 24 & red prob where? it need to check while power off tv right? your guide will help me to check faster,
              Thanks.

              Comment

              • budm
                Badcaps Legend
                • Feb 2010
                • 40746
                • USA

                #87
                Re: KDL-60W600B won't open just Red Blinks 6 times

                When checking the resistance in any circuit you do not want to have the device powered.
                Meter set to 200 Ohms range, Red probe on VCC PIN 24, Black probe on GND PIN 23 and record the reading, then reverse the probe and record the reading. Report the readings.
                BTW, did you look around to see how this power supply board will cost you? If we do find bad surface mounted part then do you know how to remove and install the part?
                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

                • Ali101
                  Senior Member
                  • Jul 2017
                  • 152
                  • Taiwan

                  #88
                  Re: KDL-60W600B won't open just Red Blinks 6 times

                  Thanks for advise budm, will check & get back,
                  this power supply cost is around USD $100 to $150 here in Taiwan & yes i know how to soldering & replace parts from boards,
                  Thank you so much.

                  Comment

                  • budm
                    Badcaps Legend
                    • Feb 2010
                    • 40746
                    • USA

                    #89
                    Re: KDL-60W600B won't open just Red Blinks 6 times

                    Please check the marked resistor in the picture, it should show <10 Ohms on your meter (meter set to 20 or 200 Ohms scale and put probes on each end of the resistor).
                    Attached Files
                    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

                    • Ali101
                      Senior Member
                      • Jul 2017
                      • 152
                      • Taiwan

                      #90
                      Re: KDL-60W600B won't open just Red Blinks 6 times

                      will check resistor & post results here, thanks alot budm, & please accept my apology since i can't check & post results now coz i am on work, will back home & do check,
                      Thanks.

                      Comment

                      • Ali101
                        Senior Member
                        • Jul 2017
                        • 152
                        • Taiwan

                        #91
                        Re: KDL-60W600B won't open just Red Blinks 6 times

                        Ok i checked & below are results,
                        Meter set to 200 Ohms range, Red probe on VCC PIN 24, Black probe on GND PIN 23
                        Results = 1
                        Meter set to 200 Ohms range, Black probe on VCC PIN 24, Red probe on GND PIN 23
                        Results = 160.5

                        Marked resistor in the picture results below
                        Meter set to 200 Ohms range = 24.6

                        Other two points marked in the picture results below
                        Meter set to 200 Ohms range = reading start from 5.2 & slowly slowly it goes down & it stop on 0.07

                        please check in picture yellow color reading,
                        Thanks.
                        Attached Files

                        Comment

                        • budm
                          Badcaps Legend
                          • Feb 2010
                          • 40746
                          • USA

                          #92
                          Re: KDL-60W600B won't open just Red Blinks 6 times

                          Originally posted by Ali101
                          Ok i checked & below are results,
                          Meter set to 200 Ohms range, Red probe on VCC PIN 24, Black probe on GND PIN 23
                          Results = 1
                          Meter set to 200 Ohms range, Black probe on VCC PIN 24, Red probe on GND PIN 23
                          Results = 160.5

                          Marked resistor in the picture results below
                          Meter set to 200 Ohms range = 24.6

                          Other two points marked in the picture results below
                          Meter set to 200 Ohms range = reading start from 5.2 & slowly slowly it goes down & it stop on 0.07

                          please check in picture yellow color reading,
                          Thanks.
                          I did not expect that resistor to have 24.6 Ohms, I expect around 4.7 Ohms
                          OK, now we need to test the Voltage on each end of that resistor that shows 24.6 Ohm with ref to GND. You will leave the meter probes in place and then turn the TV on to see how much Voltage we have on each end of that resistor when the TV is first turned on.
                          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

                          • Ali101
                            Senior Member
                            • Jul 2017
                            • 152
                            • Taiwan

                            #93
                            Re: KDL-60W600B won't open just Red Blinks 6 times

                            Hi budm, thanks for furthur help,
                            below are results,
                            Meter set to 20 dc range, Red probe on up
                            Results = 0.0v & after turn on tv no changes & same 0.00v
                            Meter set to 20 dc range, Red probe on down
                            Results = 12.6 v & after turn on tv it drop to 0.00v
                            below attached picture for refrence
                            Thanks.
                            Attached Files

                            Comment

                            • budm
                              Badcaps Legend
                              • Feb 2010
                              • 40746
                              • USA

                              #94
                              Re: KDL-60W600B won't open just Red Blinks 6 times

                              Originally posted by Ali101
                              Hi budm, thanks for furthur help,
                              below are results,
                              Meter set to 20 dc range, Red probe on up
                              Results = 0.0v & after turn on tv no changes & same 0.00v
                              Meter set to 20 dc range, Red probe on down
                              Results = 12.6 v & after turn on tv it drop to 0.00v
                              below attached picture for refrence
                              Thanks.
                              OK, I expect to 12V on the top end of that resistor since we did have 12V for seconds before the power supply goes into shutdown. So we have problem in that section, it can be that IC, or the two other component that are also connected to that pin 24 of the IC.
                              Can read any number printed on top of that resistor?
                              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

                              • Ali101
                                Senior Member
                                • Jul 2017
                                • 152
                                • Taiwan

                                #95
                                Re: KDL-60W600B won't open just Red Blinks 6 times

                                yes on top of that resistor it can read 4-7 actualy 4 than arrow face on 4 than 7
                                below is picture can be take as refrence,
                                Thanks
                                Attached Files

                                Comment

                                • budm
                                  Badcaps Legend
                                  • Feb 2010
                                  • 40746
                                  • USA

                                  #96
                                  Re: KDL-60W600B won't open just Red Blinks 6 times

                                  Originally posted by Ali101
                                  yes on top of that resistor it can read 4-7 actualy 4 than arrow face on 4 than 7
                                  below is picture can be take as refrence,
                                  Thanks
                                  OK, it is 4.7 Ohms, the same value as used the schematic that I found which use the same IC for the backlights control.
                                  So do you have 4.7 Ohms 1/4W or less that you can solder in place of that resistor?
                                  We are getting close!
                                  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

                                  • Ali101
                                    Senior Member
                                    • Jul 2017
                                    • 152
                                    • Taiwan

                                    #97
                                    Re: KDL-60W600B won't open just Red Blinks 6 times

                                    yes i have 4.8 Ohms 1/2W, below is picture for refrence, so i can use it?
                                    Attached Files

                                    Comment

                                    • budm
                                      Badcaps Legend
                                      • Feb 2010
                                      • 40746
                                      • USA

                                      #98
                                      Re: KDL-60W600B won't open just Red Blinks 6 times

                                      For testing, but what you need to do is to leave one DCV meter probe to gnd and another probe on the end of the resistor that is connected to VCC pin 24, the apply power to the TV and turn the TV on and see if you will get the 12V or not. Hopefully that the IC is not bad which may have caused that resistor to go up in value.
                                      The 4.7 Ohms resistor R6811 is used as a protection in case the IC, the capacitor C6822, ZENER DIODE D6811 at the VCC pin shorts out.
                                      Per schematic, the resistor is rated at 1/10W (0.10W).
                                      Last edited by budm; 08-11-2017, 08:41 PM.
                                      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

                                      • budm
                                        Badcaps Legend
                                        • Feb 2010
                                        • 40746
                                        • USA

                                        #99
                                        Re: KDL-60W600B won't open just Red Blinks 6 times

                                        https://www.badcaps.net/forum/attach...8&d=1502497817
                                        BTW, that third black device (D6811) down from the 4.7 Ohms resistor (R6811) may be Zener as shown in the schematic I provided earlier.
                                        Last edited by budm; 08-11-2017, 08:34 PM.
                                        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

                                        • Ali101
                                          Senior Member
                                          • Jul 2017
                                          • 152
                                          • Taiwan

                                          #100
                                          Re: KDL-60W600B won't open just Red Blinks 6 times

                                          Hi budm,
                                          Getting keep fail to soldering below resistor with soldering iron,
                                          https://www.badcaps.net/forum/attach...9&d=1502503446
                                          since place of the 4.7 Ohms resistor R6811 is very small & line of above picture resistor is thick, so no success,
                                          you think it’s worth to buy another PSU? coz i need to buy PSU from web so once bought, no return so you are peety sure that issue is in tv PSU right? It’s not LCD or any other board, Since we are trying from past 3 weeks, & now I am feeling your huge work & help finally find out we have issue with PSU,
                                          your advice will be highly appreciated, waiting for your reply,
                                          Thanks

                                          Comment

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