20 Most Recent Samsung LN-S4051D 40 in. LCD Television - Page 8 Questions & Answers

Check the power board for any swollen capacitors and replace them.

this is a lamp issue so pull out the lamp and see what is the number of the lamp is our either go to this web site http://www.discount-merchant.com and see 4 you self
Regard

Drop kick that **** in the face

You may want to repair or replace board -

Faulty parts on PS board , bad press for Samsung.

When checking the capacitors, If they are slightly rounded on the top where the X is, the cap is defective.

Because the Samsung LNS4051D would not turn on and the power
LED would blink 4 times and the relay would click and this
would repeat again and again. I replaced power supply board
parts CM806, 811, 812 & 817, all 1000 uf 10v capacitors,
three had their tops bulged up slightly that I missed on
initial visual inspection. After seeing the reports of
problems with these caps on
http://www.fixya.com/support/t1336881-will_not_turn_or_off ,
I replaced them with Radio Shack part 272-1032, 1000 uf, 35v.
They are slightly bigger, but fit OK. TV is working fine now.
Cost was 4 x $1.59 = $6.36 plus the time. I saved between
$100 to 300 in the process of either replacing the board or
getting the unit serviced. If you are not comfortable
replacing components which means using a soldering iron, you
can replace the power circuit board, available from
www.Samsung.PartStore.com.

Some UTube showing the problem and fix -

http://www.youtube.com/watch?v=tK7zFBBU6p4&feature=related
http://www.youtube.com/watch?v=Mm51C_RDIZE&feature=related
http://www.youtube.com/watch?v=BNHHrgX_6cs&NR=1

is power suplly, problem needs to be replaced.

You cannot get AUDIO from Component Video, as it is only VIDEO, you must get another set of Cables RED & WHITE, and connect them from the AV, AUDIO Jacks, OUT on the "Sender" to the AV AUDIO IN on the TV. So you will have 5 Cables connecting BOTH Video & Audio. The Component Video, uses Blue, Green, & Red, these go color to color on the RCA Jacks at BOTH ends PLUS the Red & White Audio, color to color at BOTH ends. .Hope that clears things up.

unplug tv from socket and hold down the power button on the front of the TV for 1 min plug back in. this has fixed my tv

I got the answer

Hmmm. You have picked a hard one. If you mean the flex cable that is ultrasonically welded to the glass LCD screen, you will be out of luck.
Best to call Samsung service centers to see if you can round up a broken screen.

This is usually a sign your battery may be going bad. I really hope it's just that simple for you.

The power board or your high voltage transformer, which is the little box that provides the power to the supply board. Unless the plug-in cable is directly attached to board, then change entire board.

Power LED indicator light on the front frame bazel flashes?Ur Power supply board is dead.Tries websites Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

your power supply has blown a capacitor. you will need to replace the faulty capacitor/s

Check youtube. I've watched someone fix this proble

Cold solder joint in the power-supply board, once it heats up it expands and shuts off. Open it up and start scanning the board for defects and hit them with a hot soldering iron and a dab of solder.

Cheers

Press PIP button, or press swap.

Hi.

The pixelate pattern is usually symptom of either a signal problem or a digital video problem.

After the fault occurred the TV went in protect mode. When this happens the TV goes in standby and does not respond to controls.

First ensure that it is not a temporary problem or a problem caused by a bad cable or by the connected devices (Receiver, DVD etc).
Disconnect power and follow the troubleshooting in this article: Protect mode.

If that does not worke, then PSU, input board and main controller board must be tested.

I gave a general explanation on how to test an LCD PSU here: How to test an LCD TV or monitor PSU.

When on protection the higher voltages are shut down from the main board. Only +5V is left on to keep the TV in standby.The PSU is tested jumping its control lines to higher voltages and reading volts.
This test must be done by a trained tech.

If the PSU is working on all voltage, in your case next part that can be tested is the input board. The patterm may have been caused by an input problem. The input board has few components, and it is tested at component level. Looking for shorts, or blown components that show no continuity on the multimeter.

If the input board is fine, then the main controller board must be tested. The main controller board includes the digital video and all the control circuits. The best way to test the main controller board is by reading volts on the diagnostic pins indicated on the service manual.

The other parts comprised in the TV are Tboard, inverter and IR board. This can be tested after the rest, as this are unlikely faulty.

Here all parts for your TV.

Here service manual: Television sets SAMSUNG.

I suggest following the basic steps suggested in Protect mode. If that does not work, call the Samsung number listed on the owners manual to arrange repair.

Regards.

Ginko.

Ok, this is a classic LCD fault, unfortunately, your Screen "Element" has gone faulty. There is NO repair, replacement of said "Element" IE: The LCD Screen. This is an expensive repair. In my professional opinion, you need to take it to a Samsung, authorised, service venter, then ask for a "Quote" for repair, that way you can be appraised of costings and you can determine as to repair or replace.

Hi, sorry to hear you didn't prevail, i have been doing this for over 30 years and some still stump me... But you see, just changing the capacitors well seldom permanently "Fix" anything for very long. You see, those "Blown Capacitors" were a "SYMPTOM" and are a "RESULT" of some other problem, seldom these days for capacitors fault, Unless, they are overheated. To spontaneously fail. The thing that "Kills" Capacitors, is AC Ripple/Voltage, and Over-voltage. So you see you MUST first find why those conditions exist before you can even begin to replace anything Capacitors included. So as ALWAYS the first place we start is at the Power Supply, now you make sure those voltages are correct. and if they aren't find out what not, and what is causing the problem. Then, in that way you can isolate the fault and fix the cause at the same time. That way it is "Fixed" and not symptomatically treated. Also it is nearly impossible to do anything without a service manual, you MUST try to get one of those, they will also help you identify exactly what is wrong and where to look and what to do.

Ur colors wheel is warn out,just not broken yet, it spinning off it axis.That where the noise is comming from.Replaced the colors will solved this problems.Spend some money hire a tv repair man to replaced this,because this reqiure take out alot machanical parts and boards to get to the colors wheel.