Need help with Samsung LN40E550f7f

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  • nomoresonys
    Badcaps Legend
    • Jan 2013
    • 12206
    • U.S.
    #221
    Re: Need help with Samsung LN40E550f7f

    Highjack?? kindreds last post was 3-1-2018, said he wold post back but never did, he/she just left it hanging.
    Last edited by nomoresonys; 07-27-2019, 04:50 AM.
    Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.

      Comment

      • pocketwatch62
        Senior Member
        • Jan 2013
        • 74
        • US
        #222
        Re: Need help with Samsung LN40E550f7f

        Thanks Guys very much.
        I'll order the kit and post the results.

          Comment

          • budm
            Badcaps Legend
            • Feb 2010
            • 40746
            • USA
            #223
            Re: Need help with Samsung LN40E550f7f

            Verify the kit to make sure the parts numbers of the parts matched what you have. I would replace just the PFC IC first instead of installing everything in the kit.
            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

              • nomoresonys
                Badcaps Legend
                • Jan 2013
                • 12206
                • U.S.
                #224
                Re: Need help with Samsung LN40E550f7f

                It's correct, I triple check most everything I post.
                Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.

                  Comment

                  • R_J
                    Badcaps Legend
                    • Jun 2012
                    • 9553
                    • Canada
                    #225
                    Re: Need help with Samsung LN40E550f7f

                    Originally posted by nomoresonys
                    Highjack?? kindreds last post was 3-1-2018, said he wold post back but never did, he/she just left it hanging.
                    It just makes things easier when trying to help someone if they start there own post.
                    Last edited by R_J; 07-27-2019, 08:38 PM.

                      Comment

                      • nomoresonys
                        Badcaps Legend
                        • Jan 2013
                        • 12206
                        • U.S.
                        #226
                        Re: Need help with Samsung LN40E550f7f

                        I might be a little less confusing but do we really need hundreds of threads about the same tv with the same problem?
                        Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.

                          Comment

                          • nomoresonys
                            Badcaps Legend
                            • Jan 2013
                            • 12206
                            • U.S.
                            #227
                            Re: Need help with Samsung LN40E550f7f

                            should have typed It might be.
                            Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.

                              Comment

                              • pocketwatch62
                                Senior Member
                                • Jan 2013
                                • 74
                                • US
                                #228
                                Re: Need help with Samsung LN40E550f7f

                                Hey Guys,
                                Thanks so much for your expert help.
                                Got the parts today and changed ICP801 (FAN7930B)
                                Solved the problem.
                                Plays beautifully now.

                                Thanks again.

                                  Comment

                                  • R_J
                                    Badcaps Legend
                                    • Jun 2012
                                    • 9553
                                    • Canada
                                    #229
                                    Re: Need help with Samsung LN40E550f7f

                                    Thats good to here it's fixed,
                                    So it seems to be if the PFC boosted voltage measures too high (~430vdc), it is a good chance the FAN7930B is defective even though it is boosting the voltage. Likely one of the input opamps is bad.
                                    Last edited by R_J; 07-31-2019, 12:18 PM.

                                      Comment

                                      • nomoresonys
                                        Badcaps Legend
                                        • Jan 2013
                                        • 12206
                                        • U.S.
                                        #230
                                        Re: Need help with Samsung LN40E550f7f

                                        Nice.
                                        Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.

                                          Comment

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