Question about Samsung LN-S4051D 40 in. LCD Television

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Samsung LNT4065 Turns Off/On

My Samsung LNT4065FX/XAA turns off after a few minutes then starts to cycle power (clicking noises). I read the capacitor solution (where you replace damaged caps on the power supply board), but my caps are not bulged or blown, so I am not sure what the problem is. I ordered a replacement power supply board (same version), but I still have the same problem.Thanks.

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 286 Answers

SOURCE: viewsonic n3251w - no power

A lot of TVs are having their power boards go bad due to a poor brand of capacitor (CapXon usually).

If small problems are noticed with the tv, the solution is to replace the capacitors. However, once the TV gets to the point where there is no power at all any more (not even a stand-by light) then the power supply has to be replaced.

Visit Viewsonic's website or call your local Viewsonic repair shop to get a price on this board. They are usually under $100.

Posted on Nov 26, 2008

  • 2315 Answers

SOURCE: LN-T4061f samsung lcd no backlight, no sound, no picture

Replacing the capacitors would be a good start. Replace all the ones with the same capacitance and voltage rating even if they do not look bulge.
Let me know if you require further assistance.

Posted on Mar 14, 2009

  • 22 Answers

SOURCE: samsung lnt4065fx/xaa with 100's of colored lines

Sound like one of two things: A test screen, or a broken TV. More likely than not, your television is broken. Try hitting TV/Video on your remote, and if that doesn't work, power the TV off, unplug it, and plug it back in. If none of the works, it's time to call a repair man.

Posted on Oct 29, 2009

  • 927 Answers

SOURCE: Samsung model LNT5271f excessive relay cycling before full power

Howdy,
Yes, it is very easy to repair. Solder iron wattage should be at least 300 w.

The PSB is the center Board (towards left) after you remove the back off the TV. Remove the shield that covers the Boards and remove Board from TV with the 6-7 screws. Replace capacitors CM852 & CM853; 2200ufd 25volts.

Good Luck, big IRISH.

Posted on Dec 28, 2009

Testimonial: "Great fix"

  • 927 Answers

SOURCE: Which Replacement Power Board for LNT4665F Samsung LCD TV?

Howdy,
It would be a lot cheaper if you just replace the two caps that have gone bad. Just get a cheap solder pencil from the store and about an inch of solder and you are in business.
The Power Supply Board is the center Board (towards left) after you remove the back off the TV. Remove Board from TV with the 6-7 screws. Replace capacitors CM852 & CM853; 2200ufd 25volts.

Thaks for using FIXYA, BIG IRISH.

Posted on Jan 02, 2010

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