Question about Samsung LE40R74BDX 40 in. LCD Television

3 Answers

Clicking noise will not power on, changed 2 blown capacitors. May need eeprom re-set sounds complicated?. many thanks

Posted by on

3 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 122 Answers

Change all the caps. if the problem remain you have to load the firmware{factory software} again.

Posted on Aug 09, 2010

IF THETWO BLOWN CAPS WERE IN YOUR POWER SUPPLY REPLSCE THE POWER SUPPLY SOMETIMES EVEN WHEN WE CHANGE THE CAP
THE POWER SUPPLY IS BAD

Posted on Jun 03, 2010

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 3 Answers

Capacitors supplied with tv are 10v should be 25v known fault contact samsung they will repair for free 0330 7267864 is the number

Posted on Jul 29, 2010

4 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

SOURCE: power light comes on and clicking is heard but no

your problem is more a defective y board with y buffer boards one of them is short

Posted on Oct 26, 2010

ginko
  • 19396 Answers

SOURCE: Samsung LN52A550P3FXZA LCD had clicking

Hi.

If there are very faint picture in background, then the back light system is not working. That means that problem is either inverter powering the lamps with AC, main controller board managing the inverter, or PSU providing primary DC voltage to the inverter.
In your case the PSU was defective. The damage may have concerned more components apart the capacitors (resistors, more capacitors, solder joints etc.). Testing is done tracking voltage to inverter. The first thing to test is voltage to inverter from PSU. A general procedure is described here.
This test is done reading the DC voltage from the PSU to main controller. A malfunctioning controller board may not turn on inverter. Voltage in input and high voltage on inverter must also be checked. Voltages to check are 120VDC at CN801 on IP board (inverter power board) and DC B13V,B12V,B5V Voltages at BD105L,C1261,BD101 on PSU. For safety reasons testing with power on must be done by a trained person.

To make things easier, the whole service documentation has been uploaded here.

Here parts for this TV.

Regards.

Ginko

Posted on May 28, 2011

bugoy31
  • 1238 Answers

SOURCE: Samsung PN50B450 plasma tv model # pn50b4450b1d

That problem is usually cause of faulty y sustain board..It is looks like OK but the system was faulty..Try to replace it to fix the issue..

Posted on Jun 14, 2012

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Tv just makes a click noise when pluged in


remove the back and look for any swollen or blown capacitors. it sounds like your power board went out

Dec 02, 2013 | Pioneer PDP-6010FD 60 in. Plasma HDTV

2 Answers

I HAVE A AKAI MODEL NUMBER PT5492 TELEVISION I HEARD A LOUD NOISE THEN THERE WAS NO PICTURE ONLY SOUND.


Sounds like your ballast need to be replaced, did you get sparks at the back of your tv?

Aug 24, 2008 | Akai Televison & Video

2 Answers

Lg-42px5d-eb tv made pop noise now no picture just sound think its ysus board but dont no were to buy one


Plasma and LCD TV sets are prone to having capacitors in the power supply section fail. This is the most likely cause for the probem you describe. When capacitors fail your will commonly see one or more of the following symptoms.
  • No video, Power light is on or blinking.
  • TV is making a clicking noise.
  • TV takes a while to come on
  • Screen is very dim or flickers.

Again, You can get a power supply repair kit with the parts, detailed instructions, and support from sites such as www.TvRepairKits.com . Or just click here to see more details on their kit.

Here are pictures of capacitors...Notice that the ones below look bloated. They have failed and will need to be repalced.



ecollier2012.jpg
Capacitor being replaced! Fairly easy DIY fix.

ecollier2012_0.jpg
Again, You can get a power supply repair kit with the parts, detailed instructions, and support from sites such as www.TvRepairKits.com . Or just click here to see more details on their kit.

May 03, 2011 | LG 42PX5D 42 in. Plasma HDTV

1 Answer

Printer will not power on even though computer recognizes and making muted clicking noise


Complicated: First remove the rear roller cover and check for jambs or debris. Then Try to clear internal fault memory by unplugging it and pressing power for 20 seconds. A more thorough clearing is by shorting the 2 capacitors on the small circuit board. (UNPLUGGED of course.)

Nov 13, 2010 | HP DeskJet 932c InkJet Printer

3 Answers

Samsung LCD tv wont turn on


what the full model number of your tv?
the clicking sound is the result of a faulty power supply, some capacitors(blown heads) on the power supply for the output voltage rail of the mains board need to be replaced.

pls rate me!

Mar 20, 2009 | Televison & Video

1 Answer

RCA MODEL F31672ET


You have a Tuner on Board that needs reworked. You must remove the bottom shield and resolder about 20 points. As for the sound problem you may by now have a bad eeprom [location U3201]. We may be out of Horizontal Frequency as well. First fix the tuner then replace the eeprom.[Iwould install an eight pin IC socket upon removal of eeprom, then you can insert or remove the new eeprom anytime after this]. And also check capacitors C4404 200V at 2.2MF, C4105 200V 10MF Will be bad in this case, C4127 and C4709 these may be weak. This shuld repair your TV. PS the eeprom part# is 223957. Before you change the eeprom see if you can get a good picture after resoldering the Tuner. This is delicate work so be careful or you will destroy the TV. If you do have a good video and no sound, clip R1915, this will defeat the mute,but sound will return. Just so you know repairing this TV is quite complicated good luck.

Dec 23, 2008 | RCA F31672ET TV

1 Answer

Insignia tv will not turn on, {power up}


That is usually a faulty power adapter.

Sometimes a faulty inverter board can do the same, but in that case you often get sound with no picture for a while before the the inverter comes up.

In your case it is probably a blown capacitor on power supply board.

Dec 19, 2008 | Insignia 42" LCD Flat-Panel HDTV

4 Answers

ADCOM GFA 5802 POWER AMP NO SOUND, BUT POWERS UP.


Remove the output transistors and measure each of the sets of 3 pads and report the voltage readings here. I suspect that you have either a blown driver circuit or output transistors. The voltage readings will give me an idea on where to start looking for specifics.

Thanks,
Dan

Nov 11, 2008 | Adcom GFA-5802 2-Channel Amplifier

1 Answer

Popping noise while computer is powering down. Any suggestions?


Hi,
Lower your main sound volume. Double click the speaker icon in the bottom right hand corner of your windows.(was it maxed out?)

go into control panel /sounds and select a lower bass setting in your sound settings. You usually have a choice of rock & roll ( lots of bass) opera setting, classical etc.. choose one with less bass.

Make sure your LINE IN is DISABLED. It may be causing this static feedback.

You may have blown your speakers by playing sound way too loud. You may need to buy new speakers.

Thank you and Good luck. *s*

Oct 24, 2008 | EliteGroup P4M800PRO-M478 Motherboard

Not finding what you are looking for?
Samsung LE40R74BDX 40 in. LCD Television Logo

302 people viewed this question

Ask a Question

Usually answered in minutes!

Top Samsung Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74136 Answers

Henry  Thomas
Henry Thomas

Level 3 Expert

1074 Answers

Jerry Greenberg
Jerry Greenberg

Level 3 Expert

1667 Answers

Are you a Samsung Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...