Samsung 65MU7350 problem

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  • Diah
    Badcaps Legend
    • Feb 2013
    • 6382
    • Germany

    #21
    Re: Samsung 65MU7350 problem

    i said when it power on keep press power on the TV side panel to put it in stand by mode

    Comment

    • freeman3020
      Member
      • Jun 2019
      • 30
      • Palmo

      #22
      Re: Samsung 65MU7350 problem

      Originally posted by Diah
      i said when it power on keep press power on the TV side panel to put it in stand by mode
      i did as you said
      Last edited by freeman3020; 07-02-2019, 01:42 PM.

      Comment

      • Diah
        Badcaps Legend
        • Feb 2013
        • 6382
        • Germany

        #23
        Re: Samsung 65MU7350 problem

        try again.. you need to put the TV at stand by mode

        Comment

        • freeman3020
          Member
          • Jun 2019
          • 30
          • Palmo

          #24
          Re: Samsung 65MU7350 problem

          Originally posted by Diah
          try again.. you need to put the TV at stand by mode
          i tried more and more , TV not go to standby , only if disconnect screen two cables i can go to standby, then i tried , after connect cable TV power up and repeat restarting

          Comment

          • Diah
            Badcaps Legend
            • Feb 2013
            • 6382
            • Germany

            #25
            Re: Samsung 65MU7350 problem

            it look bad news.. but let do this..
            plug it out from wall socket.. and plug the LVDS only from MB side.
            take out the PWB out. and the MB too. discharge all Caps on the PWB start from hot area the main big caps and to the cold area.. all caps.. by shorting the pins pf caps +&-

            also please post clear high resolution photo on the MB of the down side. waiting for your photo and the discharge process
            Last edited by Diah; 07-02-2019, 02:17 PM.

            Comment

            • freeman3020
              Member
              • Jun 2019
              • 30
              • Palmo

              #26
              Re: Samsung 65MU7350 problem

              i did as you told me discharge cap and connect main board TV switched on and stay on and can here sound but no picture , when switch off then on by remote its back to repeat booting

              forum reduce resolution
              Attached Files
              Last edited by freeman3020; 07-02-2019, 03:15 PM.

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              • Diah
                Badcaps Legend
                • Feb 2013
                • 6382
                • Germany

                #27
                Re: Samsung 65MU7350 problem

                common man.. my post #21 and early i said we need your TV to be in stand by.. so you after discharge and the tv stay on with out picture and you can turn it stand by... why you don't stop and replay here the result before you do as you like... sorry,, at this point i cant help. its beginner fault replace power board and brought it back to the set with out discharge

                Originally posted by freeman3020
                i did as you told me discharge cap and connect main board TV switched on and stay on and can here sound but no picture , when switch off then on by remote its back to repeat booting

                forum reduce resolution

                Comment

                • freeman3020
                  Member
                  • Jun 2019
                  • 30
                  • Palmo

                  #28
                  Re: Samsung 65MU7350 problem

                  Originally posted by Diah
                  common man.. my post #21 and early i said we need your TV to be in stand by.. so you after discharge and the tv stay on with out picture and you can turn it stand by... why you don't stop and replay here the result before you do as you like... sorry,, at this point i cant help. its beginner fault replace power board and brought it back to the set with out discharge
                  sorry but i don't understand,, i disasmble power supply out and discharge capacitor , then plugged it on TV with all cable connected and switched TV on without picture so you mean now hold power switch for second to go to standby ????
                  whats next?????

                  Comment

                  • Diah
                    Badcaps Legend
                    • Feb 2013
                    • 6382
                    • Germany

                    #29
                    Re: Samsung 65MU7350 problem

                    Originally posted by freeman3020
                    i tried more and more , TV not go to standby , only if disconnect screen two cables i can go to standby, then i tried , after connect cable TV power up and repeat restarting
                    when you discharge PWB all caps you had the TV turn on with sound and respond to remote control with out picture. when you turn it off and on again start restarting

                    this mean

                    1- you have broken line on discharge at panel or LVDS
                    2- if you can do it gain and put it in stand by mode and direct to switch it to service menu. the screen could come back.
                    3- you had spark at MB after you brought PWB back to the set with out discharge
                    4- the TV now at setting sound only as point 2

                    Comment

                    • freeman3020
                      Member
                      • Jun 2019
                      • 30
                      • Palmo

                      #30
                      Re: Samsung 65MU7350 problem

                      Originally posted by Diah
                      when you discharge PWB all caps you had the TV turn on with sound and respond to remote control with out picture. when you turn it off and on again start restarting

                      this mean

                      1- you have broken line on discharge at panel or LVDS
                      2- if you can do it gain and put it in stand by mode and direct to switch it to service menu. the screen could come back.
                      3- you had spark at MB after you brought PWB back to the set with out discharge
                      4- the TV now at setting sound only as point 2

                      sorry as i understand if i get TV on standby mode with cables connected then use my remote control by press info->menu->mute then power the TV will got picture??

                      Comment

                      • Diah
                        Badcaps Legend
                        • Feb 2013
                        • 6382
                        • Germany

                        #31
                        Re: Samsung 65MU7350 problem

                        Originally posted by freeman3020
                        sorry as i understand if i get TV on standby mode with cables connected then use my remote control by press info->menu->mute then power the TV will got picture??
                        badcaps.net hat many good knowledge members more experiences than me.. with other mother language too... please advice yours prefer language to let them join your problem. to me its out.. sorry

                        Comment

                        • freeman3020
                          Member
                          • Jun 2019
                          • 30
                          • Palmo

                          #32
                          Re: Samsung 65MU7350 problem

                          Originally posted by Diah
                          badcaps.net hat many good knowledge members more experiences than me.. with other mother language too... please advice yours prefer language to let them join your problem. to me its out.. sorry

                          sorry man ,but step by step we can understand us, don't be angry and sorry again , i will try again to put TV on standby mode , but is the service menu solve no picture problem????

                          Comment

                          • Diah
                            Badcaps Legend
                            • Feb 2013
                            • 6382
                            • Germany

                            #33
                            Re: Samsung 65MU7350 problem

                            Originally posted by freeman3020
                            sorry man ,but step by step we can understand us, don't be angry and sorry again , i will try again to put TV on standby mode , but is the service menu solve no picture problem????
                            i got yours PM. i am not angry at all. we are here just for help. but who seeking help need to follow all tests and replay with out doing other things which it may caused more damage.

                            also take out the metal shield of the Panel TAP and post photo of both side left and right. hope your TAP on each side are made of 3-4 pieces connected via ribbon joiner and not as one piece.

                            Comment

                            • freeman3020
                              Member
                              • Jun 2019
                              • 30
                              • Palmo

                              #34
                              Re: Samsung 65MU7350 problem

                              Originally posted by Diah
                              i got yours PM. i am not angry at all. we are here just for help. but who seeking help need to follow all tests and replay with out doing other things which it may caused more damage.

                              also take out the metal shield of the Panel TAP and post photo of both side left and right. hope your TAP on each side are made of 3-4 pieces connected via ribbon joiner and not as one piece.
                              i found the problem it's in COF one of its have burned point and disconnect quarter of Panel TAP and TV work , 3/4 of picture

                              Comment

                              • budm
                                Badcaps Legend
                                • Feb 2010
                                • 40746
                                • USA

                                #35
                                Re: Samsung 65MU7350 problem

                                Too bad the panel went out.
                                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

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