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Samsung hdtv displays light problem new or not

While replacing the color wheel a black wire from the far rear left to the far rear right came loose. I pushed in back in (I think in the correct spot). When I power up the TV I get the lamp fail diagnostic. I know I put it back together correctly and am perplexed. Any ideas?

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  • 10 more comments 
  • Chris Gibbons Dec 28, 2008

    I have tried a brand new bulb and get the same problem. Does anyone have the wiring diagrams? Could the sensing circuit be bad? Could some of the cables that I removed not be on correctly?

  • Chris Gibbons Dec 28, 2008

    The wire is black and goes on the power board (rear right hand side) but come from the rear left side. I checked the color wheel before I installed it new. It spins beautifully and was easy to install. The black wire came loose and I need to make sure that I goes where I put it. The old lamp looks fine and the new one gives the same error.

  • Chris Gibbons Dec 28, 2008

    I remove and re-installed the light. It fits tight and does not move much in either direction. I do not believe this is the problem. On a previous reply concerning the color wheel. I cannot see if it spins from the outside how do I know?

  • Chris Gibbons Dec 28, 2008

    I checked all the plugs and I have them in the correct place. One of the cable is difficult to reinstall. I still do not know aboout the black wire.

  • Chris Gibbons Dec 28, 2008

    The model number is Samsung HL-R5067WAX/XAA

  • Chris Gibbons Dec 28, 2008

    I double checked the cable for the color wheel and it is in correctly. On this set it only goes in one way. I do not hear it spinning (especially like the old one that was bad). Could a new wheel be defective? Should I be able to see something looking in the whole?

  • Chris Gibbons Dec 28, 2008

    No. BSEE. Done this stuff before but not on HDTV

  • Chris Gibbons Dec 28, 2008

    The cable was not cut, it came out of a hole on the power circuit board. It is weird how they had it inverted and plastic glued to the board. Still not not know what the wire is for. It really appears that the color wheel is not turning so the lamp never starts.

  • Chris Gibbons Dec 29, 2008

    Previous advise on the color wheel was correct. Got the color back on the TV. Now the inputs do not work except for the Direct TV RGB jacks. I suspect the cable that connects to the rear of the color unit (white with one black wire) may be bad but I do not know. Cable signal into TV shows as weal. Had to solder ground back on power board. Any ideas?

  • Chris Gibbons Dec 29, 2008

    There is one cable that looks a little warn from the tuner section that had to be disconnected to remove the color wheel frame. I do not know if this could be an issue.

  • Chris Gibbons Dec 30, 2008

    Thanks for all the advise. The guidance fixed my main problem. My last problem probably requires a service call. Sure wish I could get wiring diagrams.

  • Chris Gibbons Dec 30, 2008

    Thanks for all the advise. The guidance fixed my main problem. My last problem probably requires a service call. Sure wish I could get wiring diagrams.

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11 Answers

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It may have been detected that you have been tampering with the TV. It may also be that something is right but needs to be pushed or tightened again more.

If none of these worked then you may need to contact the manufacturer and tell them what you ave been doing and what is happening now, and the should fix you up as they are the ones who made the model and should have the designs for it!

--P3NGYJ03


Posted on Dec 29, 2008

  • Jackson Henney Dec 29, 2008

    You could also could have bought a faulty Color Wheel, try replacing that instaed of the bulb. Modern technology these days pick up the littlest things so make sure that it is all the manufacturers brand.

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Since the direct TV input jack gives you the picture, try the service menu and restore the set to factory settings and see if the issue is resolved. Here is a site that might help you understand how to put it into service mode
http://www.fixyourowntv.com/servicemenu.php
I would also assume the cable that you had cut may be the Y/C cable and hence the input jacks are not functional.
Another reason for this failure may be failure of the corresponding IC that deals with video inputs. I would recommend that you take the assistance of a qualified tech for a physical fix to avoid causing further damage to the set.

Posted on Dec 29, 2008

  • eagle338
    eagle338 Dec 29, 2008

    Also if you can post an image of the cable you are referring to it would be of great help in resolving this issue.

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The black wire is a ground wire that connects to one of the boards from PSU.

If power was not disconnected, this had caused a short, and more collateral damage.

If power was not connected, there may be more lose connections, or the lamp or some of the circuits may have been damaged by electrostatic charge or contacts may be lost.

Call the service number listed on the service manual and ask a quote for a warranty extention. If I was in your shoes I wouldn't even mention the job done.

Posted on Dec 28, 2008

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Does the color wheel spins good.are you sure that the lamp is working good.try to check it and look.also look whether there is any loose connections also .thank you

Posted on Dec 28, 2008

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The black wire is a ground/neutral or negative .. check to see if the ground on the lamp is connected or that the wire that lipped from it. also check to see if its connected on that part of the board that says gnd....

Posted on Dec 28, 2008

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Try Joining the cable which was accidentally cut , If you still face the same problem then please give me little more hints

Posted on Dec 28, 2008

  • Milind Shetti
    Milind Shetti Dec 28, 2008

    Sometimes you need to check if the cables are placed in the right spot . Try soldering the cable to the board , sometimes their might be a cut in the cable which me or you shall not know . Try replacing the cable it should work.

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You may have some of the plugs wrong.you might double check them to be sre

Posted on Dec 28, 2008

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It actually has some exact allignment when it is fixed .if it is little bit more towards right or left it will show this.this is common and many customers face this problem.
so make it proper again remove and refit.it will work out od 3-4 times.

Posted on Dec 28, 2008

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Where did the wire go? the lamp error could be lamp, ballast, colorwheel, or dmd. its likely the ballast wire.. see if colorwheel spins, if so, dmd and cw are ok. Then your down to ballast and lamp. on many models, there is a power wire that goes around the back of the power board and then plugs into it. You have to pull that wire of the engine won't slide out (ie probably your wire) its a 2 pin big wire taking the 360v to ballast from power board.

Posted on Dec 28, 2008

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  • thielectronick
    thielectronick Dec 28, 2008

    model # will help. # of wires in the wire that came loose will help too. I can get the wiring diagram with a model #

  • thielectronick
    thielectronick Dec 28, 2008

    the model # should be on the side of the tv

  • thielectronick
    thielectronick Dec 28, 2008

    you can see that it spins but firing up the set with the lamp and lamp door removed. you will also have to hold down the lamp door switch.



    the other method is to listen. this may help with your diagnosis. after the fans kick on, the colorwheel spinds up (you can hear its high-pitched noise come up to speed) then it will send the ballast a signal to fire the lamp. if the lamp is bad, the ballast spark gap will fire giving you a quick 1 or 2 second buzz noise. it will do this maybe 3 times before it clicks off and tries the reboot again. if it doesn't get it then it will spit out the lamp error. if it goes quickly to a lamp error, then something more is wrong. your colorwheel ribbon cable may be in backwards. the pins make contact on only one side and that is easy to get backwards.

  • thielectronick
    thielectronick Dec 28, 2008

    wiring

  • thielectronick
    thielectronick Dec 28, 2008

    sorry i cant get a big file on here

  • thielectronick
    thielectronick Dec 29, 2008

    Yeah when the color wheel spin you should be able to see it. (with lamp door off, switch pushed down and lamp removed) .. you may have to use a mirror and flashlight to see into there, but usually not. The lamp will not fire untill the colorwheel comes up to speed. There are 2 cables for the colorwheel, the ribbon one is the one possible to switch backwards. It could be a bad colorwheel but usually it would spin. You can hook up the old one (leaving it outside the engine) just switch the wires to troubleshoot.. it spins very fast so keep it away from anything. The non-ribbon cable usually has a very fragile connector so be very careful. I usually use a very small flat head screwdriver and pull up on the cable at the same time i pry just a tiny bit with the driver. I've broken this connector with just pulling and with just prying, hence doing both to minimize force. As far as your other cable, it sounds like its just the ground cable (1 wire) and it just goes to the signal half to keep the chassis ground solid throughout the set. With it unplugged, the tv would still work, maybe just get lines in video, noise, etc. If it has a grey squarish plug on the end and is 1 wire, that is it. I believe your problem is something other than this cable (ie bad new cw, ballast, etc. )

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Check the lamp bulb to make sure that it has not gone bad as if you have put it together correcty it may just be that the lamp fail is coming up due to the lamp bulb.

Posted on Dec 28, 2008

  • machadojr_fe Dec 28, 2008

    please post the model number of your set and I will look for a wiring diagram for you

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I don't think u put it back togeather correctly, somewhere you made a fatal error in your repair job, are u a qualified electronics technician in TV repair?

Posted on Dec 28, 2008

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