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Two month old samsung la40b650 only switches on after power on/off 3 or 4 times. After reading of similar problems with samsung maybe I should check the 4 capacitors bulging on the power board. hope to do that tomorrow.

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6ya6ya
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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

  • 257 Answers

SOURCE: Samsung LN-T2632H won't turn on.

Follow these steps to figure out what problem is.
When you turn on TV, look at the back and see if the back light on. If it is on, the power supply and inverter work fine. The suspection now is main board and T-con board (the small board on the middle-top of the panel)
To find the problem from the main board or not. Look at the power supply and measure Vs on - turn on the TV, this approx 5 vlt DC needs constant once you turn on the TV. If it is drop or unstable - main board problem - replace it.
If Vs on is good - disconnect the T-con cable from the power sup. If power sup stop clicking - T-con need replacing. Hope it help.

Posted on Aug 13, 2009

  • 3 Answers

SOURCE: Magnavox 19MF337B/27 LCD TV problems

The bad capacitors in this set are usually NOT on the power supply--they are on the other (logic) board. You will find several bulging capacitors there. Replace em all....

Posted on Nov 17, 2009

  • 2318 Answers

SOURCE: Samsung 32'' LN32A330J1 not turning on

Check this website to find the part(s) you need.

Posted on Dec 29, 2009

Testimonial: "The link provided by the expert was excellent. I was able to find the product easily. Replaced the capacitor and thanks !!! the TV is working again"

  • 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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