36 Replies Latest reply: Apr 15, 2012 5:04 PM by Tim Flippance RSS

    dirt in screen

    Tim Flippance Community Member

      I know this isn't a Pro question, but I don't know where else to post it, and maybe someone can help. I have a large 50" plasma screen. I recently moved it and a fragment of dirt dropped down between the plasma display and the transparent front cover, obscuring about 9 pixels of display. I flicked the cover with my fingernail and the bit of dirt dropped down about 7" where it has stuck. Has anyone any ideas how to move it or remove it?  I'm reluctant to dissemble the whole unit, even supposing that is possible. Would it be possible?

        • 1. Re: dirt in screen
          John T Smith CommunityMVP

          >plasma display and the transparent front cover

           

          Are you able to determine how the front cover is attached?

           

          Does the product manual say anything about removing the cover?

          • 2. Re: dirt in screen
            Tim Flippance Community Member

            The manual says nothing.

             

            There is no sign that the plastic body of the screen (which includes the transparent viewing window) is removable from the main bulk of the thing. I mean the steel back has screws round the edges which possibly attach it to the plastic front, but I have no idea whether the plasma display and all the electronics is attached to the back or the front. The screen as a whole is incredibly heavy (it takes two strong men to lift it), so I dare not remove the screws in case the whole front including the innards crashes to the floor (it is mounted on a wall). If I could get the thing on a table I could investigate, but this cost a fortune to buy so I'm very reluctant.

             

            The screen is SAMSUNG PS50A558

            • 3. Re: dirt in screen
              joe bloe premiere Community Member

              Is there any opening to slip in the tube from a compressed air can and possibly blow it away?

              • 4. Re: dirt in screen
                Tim Flippance Community Member

                Not really. I suppose I could blow air through the ventilation grill, but I doubt it would have any effect in the maybe 1mm gap between the plasma display and the transparent window

                • 5. Re: dirt in screen
                  joe bloe premiere Community Member

                  Is it under warranty?

                  If the intruding fragment(s) are too large to have been introduced through the

                  ventilation grill, then they may have already been present inside the cabinet.

                  • 6. Re: dirt in screen
                    Community Member

                    since dirt fell 'down' from top, try turning it upside down and tap it gently but firmly on a hard floor....see if the dirt will be back " UP " ...see if it stays there when you turn right side up again...

                     

                    ??

                    • 7. Re: dirt in screen
                      Tim Flippance Community Member

                      No the warranty has expired. I agree the dirt was already present, it only appeared when
                      I moved the screen.

                      • 8. Re: dirt in screen
                        Tim Flippance Community Member

                        Yes, but since the screen weighs about 3 tons that would be a bit difficult. I suppose I (and a friend) could bang the screen about a bit to try and dislodge it, but I'm afraid I might wreck it.

                        • 9. Re: dirt in screen
                          Community Member

                          yeah, banging on it if dirt fell DOWN ...might just lodge the dirt more DOWN into space where it gets lodged in more tightly. Since it fell DOWN to begin with, I was thinking that turning it upside down and tapping it.. might make it fall UP ( if you get my drift ?? )

                           

                          since its so heavy you might try putting some truss up and a few chain motors ( 3 chain motors that can carry the weight of 2 tons each, will give you the ability to lift 6 tons , to give you idea about how to order what you need )

                           

                          http://www.seefactor.com/equipment.html

                           

                          excerpt from link found in " equipment "

                           

                          JAMES THOMAS ENGINEERING

                          GP 12x12

                          GP 20x20

                          PRE-RIG

                          Super Truss

                          Moving Light Truss

                          Circle Truss

                          1 Ton Tower Systems

                          2 Ton Tower Systems

                          Roof Systems

                           

                          good luck !

                          • 10. Re: dirt in screen
                            joe bloe premiere Community Member

                            a mote of dust.gif

                            click me

                             

                            Too flippant?

                            • 11. Re: dirt in screen
                              Community Member

                              no Joe, that wasnt flippant, and was nice to hear from you.

                               

                              I try to sometimes ( but not always, especially when snakes or some other humorous thing comes into my head from nowhere ) to pass along some film making reference to problems people have. links to vendors, editing houses, whatever... but thats just me.

                               

                              my own suggestion to use chain motors and truss to lift up such a heavy plasma tv was in itself a joke ...but in reality might give the poster some idea about how to deal with screens ( even in big venues like rock and roll shows, media events etc ).. when they are indeed very heavy etc.

                               

                              For example, if the plasma screen is in a house and not in madison square garden, you might lift the tv with some mechanical " help ".... using whatever you can fit into the space for a mechanical "advantage".  You might use a couple of small hydraulic jacks.. a sling or two, and a goalpost between the jacks... whatever... and raise it off the " wall " where its attached , and then turn it around and tap it and so on... or else maybe get a couple friends to help you get it off the wall.. and do it manually... but being a " ton " .. that gets into mechanical advantage for a man my age...as I am not that strong... hence my suggestion which was just as stupid as yours, but at least linked to a real place to deal with real problems making movies etc.

                               

                              We just have a different mind set about how to " help" people... mine is to share real problem solving with jokes and fun, while yours it to help people sharing real problems with jokes and fun.

                               

                              When you look at the difference between me and you , there is none. Its just our experience that might be different. good luck !

                              • 12. Re: dirt in screen
                                joe bloe premiere Community Member

                                .. hence my suggestion which was just as stupid as yours, but at least linked to a real place to deal with real problems making movies etc.

                                I'm not sure what that means.  I thought compressed air and a warranty check were valid suggestions.

                                We just have a different mind set about how to " help" people... mine is to share real problem solving with jokes and fun, while yours it to help people sharing real problems with jokes and fun.

                                I thought the Lounge was the proper place for a couple of bad puns

                                based on the OP's problem and username.

                                That's all it was. Nothing more.

                                 

                                • 13. Re: dirt in screen
                                  Tim Flippance Community Member

                                  Well nice to hear from you guys, and I appreciate the humor,  or humour as we say in this country due to some Frenchman typesetting the Bible I think it was many centuries ago and misspelling all the words so labor became labour, valor became valour, etc.  I reckon I'll eventualy attempt to dissemble the screen and remove the dirt,  Wish me luck.

                                  • 14. Re: dirt in screen
                                    davidbeisner2010 Community Member

                                    My experience with TVs is that by removing the screws you'll have the ability to remove the black plastic casing, but that shouldn't affect the TV's stability on the wall... in fact, I would be shocked if the wall mount relied on those screws you mentioned to hold the weight of the TV. Now, whether or not the front protective screen will come off too, that's a different question, but I'd think you should be quite safe to remove the screws holding on the plastic cover with it still mounted on the wall.

                                    • 15. Re: dirt in screen
                                      the_wine_snob CommunityMVP

                                      Tim,

                                       

                                      How about using a suction cup (sort of like glazers use to handle glass), and sucking out that plastic sheet, just enough to let the detritus fall to the bottom?

                                       

                                      Good luck, and at least it's not a bunch of "dead pixels." Had that on an LCD TV, and spent several days, trying to "clean" the spot, only to notice, when viewed from the side, that it was dead pixels, and not a spot.

                                       

                                      Good luck,

                                       

                                      Hunt

                                      • 16. Re: dirt in screen
                                        Tim Flippance Community Member

                                        That's a very good suggestion Bill. I'll try that.

                                        • 17. Re: dirt in screen
                                          Tim Flippance Community Member

                                          Thats good to know David. If Bill's idea doesn't work I'll try removing the screws. Thanks

                                          • 18. Re: dirt in screen
                                            the_wine_snob CommunityMVP

                                            Tim,

                                             

                                            Please let us know what does work for you.

                                             

                                            Good luck,

                                             

                                            Hunt

                                            • 19. Re: dirt in screen
                                              Tim Flippance Community Member

                                              Bill I tried your idea with one of those plungers used for unblocking drains. Unfortunately it didn't work, the bit of dirt is adhering to the plasm display.  However following David's suggestion I removed 10 screws from around the top and sides of the screen, and now the black plastic cover is kind of loose at the sides, but still seems to be fixed at the middle top where there's a little locating pin. I can't find any more screws to remove, but I'll keep working at it.

                                              • 20. Re: dirt in screen
                                                Community Member

                                                just had a cool idea...

                                                 

                                                blow up a baloon. put on a wool sweater...rub baloon on your sweater for one minute vigorously....put baloon over dirt on screen....move baloon "up" and let the static electricity magically move the dirt out of your picture area !!!!

                                                 

                                                ps. do NOT let baloon touch a dogs wet nose while fully charged !

                                                • 21. Re: dirt in screen
                                                  Tim Flippance Community Member

                                                  Believe it or not I actualy tried that. I rubbed a piece of cloth until it was highly charged (at least 30,000 volts) then applied it to the screen. No luck. Probably the plastic cover insulates it.  But my dog, ever the inquisitive canine, couldn't resist sniffing it, and now tragicaly it is a deceased dog. 30,000v from nose to tail was sadly more than it could take. And now, as I reverently carry its smouldering body to it's rightful place in the earth, ashes to ashes, dust to dust, I cannot deny that my eyes are a little damp, as I reflect on the arbitrary and unjust nature of existence, the banality of evil, and various other mind boggling concepts.

                                                  • 22. Re: dirt in screen
                                                    joe bloe premiere Community Member

                                                    Nice!!

                                                    • 23. Re: dirt in screen
                                                      Community Member

                                                      Tim,

                                                       

                                                      I will say a prayer for your dog " sparky ". I am so sorry to hear of his demise. He is probably in heaven now chasing lightening bolts ....

                                                       

                                                       

                                                      • 24. Re: dirt in screen
                                                        Community Member

                                                        sparky.jpg

                                                        • 25. Re: dirt in screen
                                                          joe bloe premiere Community Member

                                                           

                                                          • 26. Re: dirt in screen
                                                            Community Member

                                                            Joe,

                                                            hehe... sparky has a real nose for power distribution .... with a safety factor of 10 amps per 1000 watts...he can instantly tell you what you need for power distribution on any film job, what cable size ( 2ought , 4ought, etc ) and lengths, how many legs at X amount of amps per leg, to various stage boxes and bull switches, and so on....he is an amazing doggy...but now we have to get his info from prayer and divine intervention, sadly.

                                                             

                                                            Or you can hire a gaffer I guess.

                                                             

                                                            they often wear red neck scarves ( like old west cowboys ) and have an ear ring in their left ear, so they are easy to spot on the streets.

                                                             

                                                             

                                                            • 27. Re: dirt in screen
                                                              the_wine_snob CommunityMVP

                                                              and have an ear ring in their left ear...

                                                              Were I working with electricity, I think that I would abstain from any metallic body piercings. Of course, I do not work with electricity, and I still abstain, so maybe that is not a good enough reason. Still, I do not want anything, that will attract electricity, beyond my sweaty brow.

                                                               

                                                              Hunt

                                                              • 28. Re: dirt in screen
                                                                Community Member

                                                                I agree whole heartedly... you know how you can put your tongue across the top of a 9 volt battery to see if it is still " good " ?  It is highly recommended NOT to use your tongue to see if all the legs of the 600 amp generator are " hot ".  a good rule of thumb.

                                                                 

                                                                 

                                                                • 29. Re: dirt in screen
                                                                  the_wine_snob CommunityMVP

                                                                  Yes, I can imagine that a 9V battery would be like Kryptonite to Superman, where this guy is concerned.

                                                                  Piercings.png

                                                                  I'll bet that he's not a Gaffer!

                                                                   

                                                                  Hunt

                                                                  • 30. Re: dirt in screen
                                                                    Community Member

                                                                    what are those things on him ??

                                                                    • 31. Re: dirt in screen
                                                                      the_wine_snob CommunityMVP

                                                                      Metal rings - serious piercings. Now I see why the worldwide shortage of stainless steel - he bought it all.

                                                                       

                                                                      Hunt

                                                                      • 32. Re: dirt in screen
                                                                        Tim Flippance Community Member

                                                                        As to the original problem:  while struggling to remove the plastic cover, and failing, the bit of dirt dropped down out of sight, so problem solved.

                                                                        • 33. Re: dirt in screen
                                                                          Community Member

                                                                          YIPEE !  GOOD GOING !

                                                                           

                                                                          I hope this doesnt mean you need to use duct tape to put plastic cover back in place ??

                                                                          • 34. Re: dirt in screen
                                                                            the_wine_snob CommunityMVP

                                                                            Tim,

                                                                             

                                                                            As there were no set requirements that you follow every step, of any operation, success is all that counts!!!!

                                                                             

                                                                            Still sorry about Sparky though...

                                                                             

                                                                            Happy editing,

                                                                             

                                                                            Hunt

                                                                            • 35. Re: dirt in screen
                                                                              the_wine_snob CommunityMVP

                                                                              Well, if Tim DOES need gaffer's tape, he can take heart that Permacel (really good tape) comes in various colors, so he should be able to get a near match with the bezel of the monitor. If not, then he could really "trick up his rig" with one of these: http://www.globalindustrial.com/g/safety/warning-tapes/warnings/reflective-safety-warning- tape-tape-applicator

                                                                               

                                                                              Hunt

                                                                              • 36. Re: dirt in screen
                                                                                Tim Flippance Community Member

                                                                                Luckily I didn't crack the plastic, so no gaffer tape needed. Sad though to reflect that Sparky died for a bit of dust. Poor dog, I miss him. But at least now I can watch my screen with no missing pixels, and with no infuriating dog yapping round my feet.