Question about Samsung PLH403W 40" Rear Projection Television

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Samsung PLH403W Projection TV Lamp Problem

My husband has a Samsung PLH403W TV that we thought had a blown lamp. We took it to a repair shop and they said the motherboard was bad and replaced it. We got it home and it continued to say it had a bad bulb. I just received my new bulb and it continues to say the bulb is bad. I installed it and attempted to turn the TV on and it made a clicking sound like 3 times and then all the LED lights started blinking indicating a bad bulb. Anyone have any ideas?

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  • limeygem Feb 19, 2009

    I cleaned the filter put it back in and still all the lights are blinking. i get the same clicking sound as well.

  • Anonymous Mar 13, 2014

    Just got a free one with a bad bulb, I can replace, but I would like the ballast and sensing diagrams as I would like to install a high power LED instead, - I realize this involves "fooling" the TV that all is 'normal' I am "mid expert" with electronics, worked in a TV shop years ago.

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1 Answer

Maybe try removing the dust filter on the back and cleaning it. If I recall correctly the TV won't turn on unless the filter is clean and fully snapped back into position.

Posted on Oct 07, 2007

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Rulds2008 is probably right. I had the same problem, but have no TV repair shop near me. So since I have experience fixing computers, I decided to repair the TV myself. I initially repaired the Lamp, but the TV still flashed all three lights. Called Samsung and they told me that I might need to replace the ballast, but it would be best to bring it to a repair shop. The repair shop offered to come out and look at it for $150 or bring it in for $120, even though they were about 30 mins away. Ordered both parts on www.Samsungparts.com and got them in three days. Still had the three flashing lights. Took apart the entire TV (googled it on youtube) and vacuumed and dusted the TV and took apart the color wheel (about 20-30 mins). It was completed busted. Found out that if the color wheel is broken, it will not send a signal to the ballast to tell it to start up and power the lamp. So if you have replaced the lamp and/ or the ballast and it does not light up, it is more than likely that it is your color wheel (buy it on ebay or amazon, got it in three days versus a 3-4 week back order on company sites). Also, make sure the power switch on back is being pushed upwards and not downwards or the TV also will not start. Total parts cost me ($400) versus having someone else fix it and charge me double with labor and parts. TV is better than ever. Hope this helps.

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1 Answer

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5. Use the 'Volume up or dwn' to enter the category.
note:Some models may not have Category Selection.
6. Use the 'Channel up or dwn' buttons to select item to be adjusted.
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1 Answer

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