Question about Samsung LNT5265F 52 in. LCD HDTV

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Hi, I have a samsung LNT4066F (LCD 40 inch). Lately is taking a little longer than normal to turn on and sometimes its starts up with purple dots and lines spreaded all over the screen, but I know they are not dead pixels because when I turn it off, they disappear and the TV starts faster (as normally). I have my same setup since long ago, so I don't think that's a problem, and also I have it plugged into a TDE Max 1000

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Write down your serial # (found on the back or on the side) and your model # and call 800-Samsung. The issue has to do with the capacitors and if your TV was manufactured between Dec 2007 and May 2008 they will send a repairman out to repair for free (one time only). I just called and they are sending someone out to repair mine. Apparently there are tons of people experience the same problem.

Posted on Aug 11, 2010


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Turn on TV, blue light powers up but screen does not power on. turn off and back on a few times and screen eventually powers on. also get occasional light purple dots scattered about screen. disappears...

I t may have dying power supply module due to bad caps with bulging/leaking top/seal. That will be the first place to look.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:

Failed TV and Monitors:

Capacitors kit: he can make you a set of caps.

Sep 30, 2010 | Samsung LNT4066F 40 in. LCD Television

1 Answer

Takes a while to start up and turn on. Sometimes purple pixels

you have a power supply problem, look for bad capacitors normally they are flat on the top, but when they go bad they get like a bubble on top. just replaced them. good luck

Jul 10, 2010 | Samsung LN-T4061F 40 in. LCD HDTV

1 Answer

I have a Samsung LNT4066F. Multicolor lines then normal.

Had this problem occcured after opening of the set or by itself. If so please checck on the shielded connections of the power board. Please make sure your power outlet is working fine and there is full voltage on the input to the power the set carefully by unscrewing the rear panels. Look out for any loose/dry solder joints inthe power board.Use a good low wattage soldring iron to solder suspected joints.Keep the power off and be careful to see that you do not attempt to touch the main capacitors which could have high voltage stored. Next you need to check the drive to the panels, check from the transformers for loose / dry connections, if so resolder. once you have finished, close up the panel and test. If htis wont solve, test the voltages in the power and the drives, the fault appears to be some dry points so look carefully with patience. I hope this advice helps you out. Good day

Jul 07, 2010 | Samsung LNT4066F 40 in. LCD Television

1 Answer

Purple Pixles When Samsung LNT4661F TV Start Up

I also have this same problem, which seems to be occurring more and more lately. Any solutions?

Mar 24, 2010 | Samsung LN-T4661F 46 in. LCD HDTV

2 Answers

Purple dots on HD LCD samsung model LNT4661FX/XAA when on.

your lcd micron tube in the panel had already worn out.
got to replace the panel

Jan 27, 2010 | Samsung LNT4642H 46 in. LCD Television

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power supply board has failed.the most common problem with samsungs. can call 1-800-samsung for nearest service center.

Dec 31, 2009 | Samsung LNT4066F 40 in. LCD Television

1 Answer

Colorful vertical lines on screen

more likely to be bad LCD panel (very expensive), but you can try replacing the LCD controller first (around $80~100).

Dec 01, 2009 | Samsung LNT4066F 40 in. LCD Television

1 Answer

Samsung LCD TV slow to start

Dont have a solution, my samsung 46 inch is doing same thing. Have you found a solution?

Oct 05, 2009 | Samsung LNT5265F 52 in. LCD HDTV

1 Answer

TV turns off and on

you have bad electrolytic caps in the power supply---remove power supply replace swollen caps--if you do not think you can replace caps try enter model number scroll down to find power supply-if they do not have in stock write down part number then google it to find one

Sep 15, 2009 | Samsung LN-T4061F 40 in. LCD HDTV

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