Question about Samsung HPN5039 50 in. Plasma HDTV

1 Answer

How do we know if its capacitors or power supply?

If the capacitors are bad, will the sound also fail?  Or does no picture+no sound indicate that it is a power supply issue?

Posted by on

  • dmesserly Jul 25, 2008

    Thanks for the quick response, Jaime867.  


    - screen is black, no picture
    - power light remains red when pressing the power button (does not turn green as it normally would when the TV is on)


    The TV is at the shop right now, and I was just trying to get some confidence in their diagnosis of a bad power supply board.  We are fairly new to this particular repair company so my trust level in their diagnosis is not quite there yet.  


    They claim that no sound indicates the power supply board.  I can't verify there is no sound, because when it was at our house, our sound ran directly from the cable box to a surround sound system and the TV sound was disabled.

  • dmesserly Jul 25, 2008

    BTW, we had no video distortion or other problems prior to the screen going completely black.

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 2,307 Answers

What is the problem with your TV?
It depends where or how the capacitors are connected and the function(s) they perform in the circuitry.
If the main capacitor(s) fail then there could be some intermittent ON/OFF or a buzzing noise getting to the speakers, bad or distorted video.
If you've have seen the power board on your plasma, you will see a few of them in there.

Posted on Jul 25, 2008

×

1 Suggested Answer

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Sanyo 42 inch hdtv no picture no sound


if just an stand by light indicator, the cause is either the power supply board failed or somewhere in the main board which doesn't send signal on to the power supply board. this case need proper trouble shooting. if you know some basic in electronics repair tried to check bad components first at the power supply like bulged capacitor,but if you don't have any idea just leave it to the trained technician to fix the problem.

Aug 30, 2012 | Sanyo Televison & Video

1 Answer

When power is engaged only thing happens is a clicking noise and a flashing indicator source light


The power supply has failed on your LCD due to defective capacitors leaking or bulging. There are 17 capacitors that should be replace to restore the power supply functionality.
I could also repair the power supply.
Let me know if you need further assistance.
See the picture below

c430f15.jpg

Aug 27, 2010 | Akai LCT2715 27 in. LCD Television

1 Answer

The power indicator light is on but no picture and no sound!


bad power supply due burned or bulgy capacitors do this undo the back and check for any bad capacitor.
replace with the proper one.
rate me please

Aug 12, 2010 | Olevia LT32HVM 32 in. LCD Television

2 Answers

Tv popped and went dead


Sounds like the power supply failed. If out of warranty and you want to open it up, look for damaged parts on the power supply board. Unplug the set. Use your nose to sniff out the burnt parts.

May 06, 2010 | Vizio GV42L 42 in. LCD Television

1 Answer

No power


Couble check powr cords. Try a different power outlet. Otherwise it's a bad power supply. Symptoms: No display at all, no power indicator light, no sound from speakers, momentary popping or clicking noise, "burnt electronics" smell. Typically caused by failed capacitors. Can be usually be repalced and continue to have working display for a long time. Repair: Replace power supply. Super cheap when it's just a couple of bad capacitor to medium expense when repalcing whole power supply unit.
-=/ Daft Tech /=-

Oct 22, 2009 | Element Electronics FLX-3211B 32 in. LCD...

1 Answer

TV DOES NOT COME ON AT ALL


Bad power supply. Symptoms: No display at all, no power indicator light, no sound from speakers, momentary popping or clicking noise, "burnt electronics" smell. Typically caused by failed capacitors. Can be usually be repalced and continue to have working display for a long time. Repair: Replace power supply. Super cheap when it's just a couple of bad capacitor to medium expense when repalcing whole power supply unit.
-=/ Daft Tech /=-

Oct 22, 2009 | Toshiba 23HLV85 Television

1 Answer

IBM ThinkCentre 8183 (M51) does not boot


The situation you describe is usually 1 of 2 things, Power supply (PSU) or Motherboard (mobo).
Situation #1: If you get a blank screen and no sounds or movement it either indicates that the power supply unit (PSU) has failed or something on the motherboard has failed, preventing normal startup. Fans are usually the first thing to get power, then the mobo for the Power on Self Test (POST).
Situation #2: You might get some power lights coming on and some fans spinning but the video output does not happen and normal startup sounds do not take place, usually indicates that motherboard is going out or has gone out. OR it may be due to a weak (damaged) PSU.
Always try a different power outlet that you know is working. (Eliminate the easy stuff first!)
If it is out of warranty, try opening up the case, with the power off, of course. Also take this time to inspect the capacitors on the motherboard (they look like tiny soda cans) and check for tops that are bulging, swelling or leaking anything. Capacitors should be perfectly flat on top. If you find these then your motherboard is bad (well technically the capacitors on your motherboard are bad). The bad caps will need replacing to fix (not a job for an amateur). If it passes the visual inspection then it may just be your power supply is bad. Notice that a bad PSU does not mean you are getting no power, just not enough to start and run the computer.
A few years ago a company stole the recipe for making capacitors and started making their own capacitors at really cheap prices. The stolen "recipe" was not complete and not correct so these caps started failing after about 2-3 years of use. Emachines, DELL and Gateway were the computer companies most affected by the bad capacitor issues, although any of the big companies could have the same problem. These bad caps also affected power supply makers.
Since you have tried removing components then it looks like you have narrowed it down to either the power supply or motherboard. If your motherboard looks ok and if you can get another power supply that has an output watts that is greater or equal to the one that you have, try replacing that first.

Apr 14, 2009 | IBM ThinkCentre M51 PC Desktop

2 Answers

No video signal to Monitor.


Lack of video signal is usually 1 of 3 things, Power supply (PSU), Video card or Motherboard (mobo).
Situation #1: If you get a blank screen and no sounds or movement it either indicates that the power supply unit (PSU) has failed or something on the motherboard has failed, preventing normal startup.
Situation #1A: You might get some power lights coming on and some fans spinning but the video output does not happen, usually indicates that motherboard is going out or has gone out. Ocasionally it will be due to a weak (damaged) PSU.
Situation #2: If you get sounds and lights but nothing on the screen then it indicates a failed or loose video card.
Always try a different power outlet that you know is working. (Eliminate the easy stuff first!)
If it is out of warranty, try opening up the case, with the power off, of course. If you have Sit #2 and have a video card that you can reseat (take out and then put back in) try that. If it is onboard video then you may have to buy a video card for it.
Also take this time to inspect the capacitors on the motherboard (they look like tiny soda cans) and check for tops that are bulging, swelling or leaking anything. Capacitors should be perfectly flat on top. If you find these then your motherboard is bad (well technically the capacitors on your motherboard are bad). The bad caps will need replacing to fix (not a job for an amateur). If it passes the visual inspection then it may just be your power supply is bad. Notice that a bad PSU does not mean you are getting no power, just not enough to start and run the computer.
A few years ago a company stole the recipe for making capacitors and started making their own capacitors at really cheap prices. The stolen "recipe" was not complete and not correct so these caps started failing after about 2-3 years of use. Emachines, DELL and Gateway were the computer companies most affected by the bad capacitor issues, although any of the big companies could have the same problem. Power supply maker were also affected by these bad caps.
Do you hear anything during startup, beeps, fans or drives spinning, lights on the front or back of computer flashing or lit up? Do you hear the Windows starting sound?
Let us know more then we can troubleshoot better.

Mar 26, 2009 | E-Machines eMachines Desktop PC

1 Answer

When I switch on the computer there is nothing on the screen


Do you hear anything during startup, beeps, fans or drives spinning, lights on the front or back of computer flashing or lit up? Do you hear the Windows starting sound?
Let us know more then we can troubleshoot better. It is starting to sound like 1 of 3 things, Power supply, Video card or motherboard.
Situation #1: If you get a blank screen and no sounds or movement it either indicates that the power supply unit (PSU) has failed or something on the motherboard has failed, preventing normal startup.
Situation #2: If you get sounds and lights but nothing on the screen then it indicates a failed or loose video card.
Always try a different power outlet that you know is working. (Eliminate the easy stuff first!)
If it is out of warranty, Try opening up the case, with the power off, of course. If you have Sit #2 and have a video card that you can reseat try that.
Also take the time to inspect the capacitors on the motherboard (they look like tiny soda cans) and check for tops that are bulging, swelling or leaking anything. Capacitors should be perfectly flat on top. If you find these then your motherboard is bad (well technically the capacitors on your motherboard are bad). The caps will need replacing to fix (not a job for an amatuer). If it passes the visual inspection then it may just be your power supply is bad. Notice that a bad PSU does not mean you are getting no power, just not enough to start and run the computer.

Mar 25, 2009 | Dell OptiPlex GX520 PC Desktop

1 Answer

Picture & sound shuts off


I had a similar problem with my Phillips 42 in. LCD HD TV.

Here's the problem. The Power Supply Board. I opened my TV up(warranty was up of course) and found several bad capacitors. Phillips and several other companies were sold capacitors that although were highly rated failed within 5 years because of a lack of preservatives. All sorts of electronic equipment is now being effected due to these defective capacitors.
Solutions?
1. Take it in and have it fixed
2. Open it up, check the board for faulty capacitors(bulged or leaking) Buy a new Power supply board and install it.
3. Remove PSB, remove faulty capacitors and replace with compatible new ones.

Hope this helps

Oct 06, 2008 | RCA L32WD14 32 in. LCD Television

Not finding what you are looking for?
Samsung HPN5039 50 in. Plasma HDTV Logo

355 people viewed this question

Ask a Question

Usually answered in minutes!

Top Samsung Televison & Video Experts

The Knight
The Knight

Level 3 Expert

73150 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...