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    27" samsung s27a350 dead

    i blew up my tv and 2 samsung monitors by having my vga cable touch the metal case of my stereo . 2 arcs killed my samsung and tv while the other still works when switched to vga
    so, anybody have any ideas where to start? i have another thread in the tv forum for my tv so i thought id post here for my monitor. i included a picture. any guidance would be greatly appreciated.

    #2
    Re: 27" samsung s27a350 dead

    Forgot to add pics
    Attached Files

    Comment


      #3
      Re: 27" samsung s27a350 dead

      Have you checked the fuse ? measured for any voltages ?

      Comment


        #4
        Re: 27" samsung s27a350 dead

        yes. the fuse was fine. It got zapped through the ground plane of the hdmi port so im thinking the ic is dead. Im going to test the board through the test points when i get a chance but i ended up finding this monitor with a cracked screen on kijiji.ca for $40 so i jumped on it and now a quick switch of parts and i got my monitor back. is it worth researching and troubleshooting? boredom will tell
        thanks for the interest

        Comment


          #5
          Re: 27" samsung s27a350 dead

          Hello ogtommy,
          Can you please check something for me?
          I need you to go to the back of your stereo and touch the metal case to see if you get a tingle from it.
          Though you may have to touch another appliance with your other hand to actually get a slight or hefty buzz.
          Please let us know how you get on.
          Thanx in advance.
          Regards,
          Relayer

          Comment


            #6
            Re: 27" samsung s27a350 dead

            Using OP as the guinea pig? Are you kidding? Op already have three damaged TV/Monitors.
            How about doing the safety test?
            Attached Files
            Last edited by budm; 12-01-2017, 10:52 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


              #7
              Re: 27" samsung s27a350 dead

              Stupid!
              Do not do this!

              Originally posted by relayer View Post
              hello ogtommy,
              can you please check something for me?
              I need you to go to the back of your stereo and touch the metal case to see if you get a tingle from it.
              Though you may have to touch another appliance with your other hand to actually get a slight or hefty buzz.
              Please let us know how you get on.
              Thanx in advance.
              Regards,
              relayer

              Comment


                #8
                Re: 27" samsung s27a350 dead

                No grounded wiring in that house? Or maybe disconnected on purpose at the stereo.

                Comment


                  #9
                  Re: 27" samsung s27a350 dead

                  i didn't get a chance to test with a multimeter due to obligations last night but i did unplug EVERYTHING and the powerbar that had the receiver plugged into it along with one or two other things had the ground plug clipped. that plugged into another powerbar that had a ground plug so all along i actually thought everything was grounded and couldn't figure out what happened. i put that right in the garbage. I found 3 more in the closet and 1 that the mini bar fridge is plugged into.
                  On another note my nvidia grafx card crapped out. fans still spin but computer doesnt see it. Is there any hope of repairing it or should i scrap it? it was 4gb so it sucks to through it away but like tv/lcd i have no idea if it's even possible.

                  Comment


                    #10
                    Re: 27" samsung s27a350 dead

                    Originally posted by kc8adu View Post
                    stupid!
                    Do not do this!
                    +1000
                    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


                      #11
                      Re: 27" samsung s27a350 dead

                      Quote:
                      Originally Posted by kc8adu View Post
                      stupid!
                      Do not do this!
                      Using OP as the guinea pig? Are you kidding? Op already have three damaged TV/Monitors.
                      How about doing the safety test?
                      Attached Files
                      File Type: Safety test.pdf (135.1 KB, 6 views)
                      +1000
                      Your safety test pdf has to do with returning a receiver to the customer, not when you initially get it in for repair.
                      I'm sure you both do a safety check every time before returning it, eh?
                      If you really felt there was a safety issue with ogtommy don't you think that he would have been electrocuted by now?
                      You've never felt tingles when attaching cables to equipment?
                      Due to double insulated equipment i.e. ogtommy's TV and two Samsung monitors, they could be floating at around 40 volts or higher, though with very little current, but enough to cause a tingle none the less. But with earthed equipment such as ogtommy's stereo, it ends up being a return path for the double-insulated gear. That's why his TV and monitors copped it.
                      Otherwise, if it was direct mains going from his stereo out, he would be electrocuted, plus there would have been a fairly hefty spark when his VGA cable touched his stereo.
                      If he was still getting a tingle from his stereo, then it could be modified to stop this. He could also modify his TV and monitors.

                      Comment


                        #12
                        Re: 27" samsung s27a350 dead

                        Did you read that he found out one of his outlet strip has ground prong for safety GND cut off so the leakage current through the Y cap and MOV are present on the chassis. It is the current that can kill you.
                        "https://www.badcaps.net/forum/showthread.php?t=34692&highlight=bad+glues" with 40 years of my experience, I know what should and should not do.
                        "
                        Default Re: 27" samsung s27a350 dead
                        Quote:
                        Quote:
                        Originally Posted by kc8adu View Post
                        stupid!
                        Do not do this!
                        Quote:
                        Using OP as the guinea pig? Are you kidding? Op already have three damaged TV/Monitors.
                        How about doing the safety test?
                        Attached Files
                        File Type: Safety test.pdf (135.1 KB, 6 views)
                        Quote:
                        +1000
                        Your safety test pdf has to do with returning a receiver to the customer, not when you initially get it in for repair.
                        I'm sure you both do a safety check every time before returning it, eh?"
                        You bet unless you want to get sued if something goes wrong even it has nothing to do with the repair work you have done, nothing complicate about that test.
                        Have you ever heard of isolation transformer and GFCI? That is what I use during the repair process.
                        Are you really trying to justify on how the OP should test to find out how bad the situation is? Really?
                        BTW, OP found out that one of his outlet strip has ground prong cutoff!
                        "i didn't get a chance to test with a multimeter due to obligations last night but i did unplug EVERYTHING and the powerbar that had the receiver plugged into it along with one or two other things had the ground plug clipped."
                        You probably use the match to find leaky gas too, eh?
                        You may not care about somebody safety that is your choice, my 40+ years of experience tells me otherwise, and since the damages has already occur to THREE TV/Monitor so the proper test is needed, and you want OP to do the shock test?
                        "If you really felt there was a safety issue with ogtommy don't you think that he would have been electrocuted by now?" May be that he never make contact between the pieces of the equipment, but his cable did.
                        Last edited by budm; 12-02-2017, 08:22 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


                          #13
                          Re: 27" samsung s27a350 dead

                          Hi ogtommy, did you do the test as suggested?
                          "Can you please check something for me?
                          I need you to go to the back of your stereo and touch the metal case to see if you get a tingle from it.
                          Though you may have to touch another appliance with your other hand to actually get a slight or hefty buzz."
                          Last edited by budm; 12-02-2017, 07:57 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


                            #14
                            Re: 27" samsung s27a350 dead

                            lol!! im not touching nothing. i went around this 3 story house and unplugged everything. this is an old fortress from the 20's that must have past some really shady inspection because the breaker panel is NOT a breaker panel. It's a fuse box!!! in the 21st century. anyways Ive installed a few gfci or gcfi or whatever they're called (sorry been a long long day) that were in a box of 24 so someone had the right idea before me but must of just shrugged it off till they sold this place. My wife was freaked out by the experience and is petrified about letting the kids even come here so im really really thankful i lost a monitor instead of a child.
                            I have enough common sense not to touch the case of my live stereo but i do understand that relayer is speaking from kindness and not ill will so no harm done towards me.
                            this has been a real real learning experience and i dont think i will EVER see a powerstrip/plug without making sure there is a ground plug that works.

                            now, if only i could get my graphics card to work. I did find a burn mark with 3 caps blown but i doubt that would disable the computer from recognizing it considering they were right beside the hdmi/dvi port so they were used in an rc circuit to limit signal interference/noise. any other points i can look for? looks like $600 down the drain

                            Comment


                              #15
                              Re: 27" samsung s27a350 dead

                              there's burn marks on the dvi connector too when i took this all apart. One really really expensive lesson.
                              Attached Files

                              Comment


                                #16
                                Re: 27" samsung s27a350 dead

                                Luckily no one got hurt, especially your kid.
                                Safety is not something to take it lightly, I take it very seriously and proper test should be done.
                                Shock test is a big NO NO.
                                BTW, so now you know how to do the safety test, you might as well test your equipment you have, you may find some surprises, I.E. the cheap USB charger and wallwart power supplies.
                                Last edited by budm; 12-02-2017, 10:19 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


                                  #17
                                  Re: 27" samsung s27a350 dead

                                  i almost deleted Relayers post and set reason to "weapons grade stupid"
                                  better to see this discussed for the next reader with this issue but common sense should tell you that since sparks flew something is live that should not be!

                                  Comment


                                    #18
                                    Re: 27" samsung s27a350 dead

                                    ^
                                    This dumbshit also left nasty visitor messages on accounts....I removed them. I guess stupid people are in Australia too!
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