Samsung LN-T4661F 46 in. LCD HDTV Logo
ira landsman Posted on Aug 30, 2017

The clicking is the power on relay. The problem may be with the power supply or the load (one of the circuit boards). If its out of warranty. Open up the back and look at the power supply board. Look for swollen caps and other overheated parts. Do it with the power cord unplugged. You will probably have to have a service visit.... how much would a visit or new board cost?

5 Related Answers

Jaime Hernandez

  • 2351 Answers
  • Posted on Jan 05, 2009

SOURCE: Samsung LN-S4051d power supply board

The replacement of the power supply is quite easy. You will have to remove the base if applicable and the back cover, once you remove it; you should see the power supply.
Click here to see how the power supply looks like and availability or Click here to find a cheaper one.

I can also repair your power supply. If you need further assistance you can write to [email protected]

Ad

Anonymous

  • 304 Answers
  • Posted on Jul 17, 2009

SOURCE: Samsung TV Power Supply Board

I doubt that moisture damaged the SMPS bd.
There are many circuit boards in your set and it will take a trained samsung tech to find the problem.

Jaime Hernandez

  • 2351 Answers
  • Posted on Jul 17, 2009

SOURCE: Samsung Power Supply Board

The power supply part number is BN44-00159A. You can also download the info from this link. It's the service manual.

Anonymous

  • 206 Answers
  • Posted on Aug 23, 2009

SOURCE: power supply board

Hai,
Please check on here....you will find it out!

Anonymous

  • 1 Answer
  • Posted on Sep 17, 2009

SOURCE: Same "clicking" problem with 46" Samsung LCD...does not turn on.

With any luck you will have the same problem asa the rest of us : blown power board capaciters , remove the rear cover {20 screws} look in the middle of the back of the set with the cover {5 screws} removed from the power supply . Now look to the upper right cornerof the board in the middle of the tv there may be 1 or several capaciters leaking from the X shape on the top , this be be your problem match up replacements but source units that have a higher max voltage than 10volts 7 get them soldered into the board . I repaired mine that failed at 16 months for $4 in parts & it took longer to remove the screws than it did to affect the repair. If you are not conifident about soldering on your $2000 tv then take the board to someone for the job to be done , I would not advise this as a first soldering job , good luck I can't belive how common this is Samsung needs to step up ......

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

0helpful
1answer

How to test the 4 output powersupply on the un55b8500 led tv

First, inspect the electrolytic capacitors on the power supply board. The top of a burned-out capacitor is often domed instead of flat. You may measure proper voltage with no load, but the bad capacitor will not support a load. (Note: the voltages are usually printed on the board next to the output connector.) The page linked below includes a nice illustration of both good and bad capacitors. Also, check the LED driver board for the same problem. If you don't see anything like that, add a comment to the post to that effect, and we'll look at other possibilities.

CapacitorLCDPARTS net
0helpful
3answers

When i turn on the tv it makes a clicking noise while it tries to turn on . it takes awhile for the tv to turn on. i'm assuming the clicking noise is the tv trying to turn on but cant. it eventually turns...

The clicking is the power on relay. The problem may be with the power supply or the load (one of the circuit boards). If its out of warranty. Open up the back and look at the power supply board. Look for swollen caps and other overheated parts. Do it with the power cord unplugged. You will probably have to have a service visit....
1helpful
3answers

My akai tv model lct3785ta will not turn on

Ok.. What is the status of the power LED at the front. Does it blink, change color a few seconds after its turned on? Do you notice any clicking noise from the set?

Please provide this info so that we can continue with the diagnosis.
Sai.
0helpful
1answer

Plasma clicking

You have to really make sure it is the power supply board that is causing the unit not to turn on. Follow these steps to test the power supply.
  1. Unplug the unit from the AC source.
  2. Remove all connectors from the power supply except the AC input.
  3. Plug back the TV.
  4. The power supply should turn on automatically. You can determine it by measuring the voltages on the output terminals and the relay/s clicking on.
  5. If the power supply does not turn on automatically, it is defective.
  6. If it turns on, unplug the unit and allow it to discharge.
  7. Connect 2 100-watt light bulbs in series to make a 200-watt load between the M5V output and the chassis ground. M5V is the 5-volt output of the power supply supplied to the Y and Z SUS Boards.
  8. Plug back the unit.
  9. If the power supply operates in this condition, it is assured it is working fine and it can maintain its output power under load. The problem is somewhere else.
5helpful
2answers

TV clicked and went blank...no picture, no sound. Power light blinks ten times in one second intervals and then pauses for about five seconds.

Most problems with TV not turning ON is a power supply related problem. The relay click are a normal process that powers up the circuit boards. Right now the TV is most likely in " Protection Mode ". The TV detected a bad circuit board and it will prevent the TV from fully turning ON. This keeps the other circuit board from being damaged. The power light blinking is a code.
If by chance the TV is still under warranty, go that route.
If not under warranty and If you have some electronic experience, if you can find and purchase a Service Manual over the internet. This will help you diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, blinking light codes, test points, and part# lists. Usually, cost under $20.

I hope I shed some light on the subject for you.
1helpful
1answer

Hi, I have a sharp 46d92u that doesn't power on at all, I'm guessing the main power board but it leaves me unsure a little when I hear the relays click when I plug it in, any ideas??

Most problems with TV not turing ON is a power supply related problem. The relay click are a normal process that powers up the circuit boards. Right now the TV is most likely in " Protection Mode ". The TV detected a bad circuit board and it will prevent the TV from fully turning ON. This keeps the other circuit board from being damaged.
The most common thing to go out is the circuit board that supply power to the screen. Commonly called a Backlight Inverter Board.
But, I can't say it's 100% the problem because I can't actually look at the tv over the internet.
If by chance the TV is still under warranty, go that route.
If not under warranty and If you have some electronic experience, if you can find and purchase a Service Manual over the internet. This will help you diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, red light blinking codes, test points, and part# lists. Usually, cost under $20.

I hope I shed some light on the subject for you.
3helpful
2answers

Clicking sound - not cooling

The problem is most likely the condenser fan motor at the back-side/bottom/right of the unit. If this fan is not turning, unplug the connector to this fan (inside the protective cover on the wires near the fan)... if the clicking stops, then this fan needs to be replaced.

What is happening is that this fan has failed but continues to draw a heavy load from the circuit board... It draws enough power from the circuit board to drop the voltage on the circuit board to 5-6 volts and the relays on the board open up and disconnect the power to the fan. The the voltage jumps back up to 12-13 volts and the relays turn back on causing the voltage to drop again and the relays to open.... ON....OFF...ON...OFF..... thus the clicking!

The exact part number for this fan may vary depending on the model and serial number of your unit... My model is GBS22K-BRBBB and the fan part is WR84X10055 and should cost $60-$70 though I have seen it being sold for as much as$130.
0helpful
1answer

Unit won't power up completely

The clicks you hear are the relay that completes the circuit for 110V AC to the main power transformer. Mine had the same problem and here's how I've gotten it to work. A lightning strike near our house caused it to fail, and I traced it to the power transformer relay activation circuit. The tuner and amp were fine. I found a bad transistor in the relay circuit, but didn't have a replacement on hand, so I soldered a jumper wire across the relay switch connections on the power transformer circuit board. This connects the 110V AC directly to the power transformer. DC Power to the amp and tuner circuits will still be controlled by the power switch, but the transformer will be supplying all the AC voltages to the main board. If there is a real problem with the circuits that load the transformer or the transformer itself, then the fuse will blow. If the fuse doesn't blow then I suspect the problem is just in the power sequencing circuit itself, that is not needed for operation other than to make the unit "Energy Star Compliant". A lot of electronic items have a transformer that is not switched, and only fused, so that the supplies are available at all times.
0helpful
2answers

TOSHIBA TP4688 Rear Proj. TV

Hi, the relay is getting a command to shut down because there is a short somewhere in the set, if you have a volt meter you can check the "chemical fuses" to see which one(s) are open and that will tell me which circuit has the short in it. be advised these are not glass fuses so if your unfamiliar with what a chemical fuse looks like you will have to look on the power supply board for a small rectangular body device with a designation printed on the board "Fxxx". check these and let me know which ones you have failed and we can go from there, BMW Rider
Not finding what you are looking for?

156 views

Ask a Question

Usually answered in minutes!

Top Samsung Televison & Video Experts

Grand Canyon Tech
Grand Canyon Tech

Level 3 Expert

3867 Answers

 Grubhead
Grubhead

Level 3 Expert

5755 Answers

Cindy Wells

Level 3 Expert

6688 Answers

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

Answer questions

Manuals & User Guides

Loading...