20 Most Recent Samsung 50 in. Plasma TV - Page 9 Questions & Answers

Hi,

The issue you describe is consistent with a power supply board issue. This is the board where the AC goes to. This problem may have occurred as a result of irregular power supply, or excess power supply or power surge.

The TV is receiving current but is finding it difficult to circulate or transfer the current to other necessary part of the TV because of the defective power supply board. You might be lucky it's just a failing fuse. Also a defective transformer can cause your TV to take time to power on.

All these can be checked on the power supply board.

But more often bad capacitors causes problem on the power supply board. I do not think the power board needs replacement, rather those defective capacitors is causing this issue. Open unit up and take a look at the power supply board.You will probably see one or more electrolytic filter capacitors that are bulged up in the top-not perfectly flat like the others.

The value of these capacitors will be different, most likely they will be somewhere around-820 to 2200uF/25 V( or /10V sometimes)

You can replace them with same values but I would recommend the voltage rating to be higher(like 35V for an original 25V) for reliability purposes.

What happens is,these bulged top capacitors will cause a low and unfiltered DC voltage=main board will malfunction(the relay will keep clicking until the caps are holding enough charge to bring the voltage up over a threshold point).

You can buy these capacitors at any Fry's or Radioshack store or you can order them online at vendors like "mcmelectronics.com"(look for electrolytic capacitors). After replacing these capacitor(capacitors) most likely the normal operation will be restored. Or you can by a refurbished complete power board to save you some stress.

Note: There may be also some other causes for this symptom ,like a defective T con board ,or main board,but the bulged top capacitors are the most common cause for this issue.

If you don't know about TV repairers, take the TV to the nearest repairman to fix the fault for you. Also, note that TV stores a lot of current, so wait a while before opening the TV back cover.

I hope this helps.

Regards.

okay it sounds like your tv is having a problem in the IF or video section.this will require you to have a tech repair your tv.if you dont have a training in tv repair then dont open your tv.good luck.

Sir the problem of your unit is the power supply, if you remove the back cover of your unit try to observe the power supply if there is a bulge up or leaky capacitor. This bad capacitor is producing unfiltered and low dc supply to your unit that cause your unit to malfunction, if you see this bad capacitor replace it but observe the polarity. Note be sure to unplug the unit when removing the back cover. Good day sir and best regards.

Change your settings on sleeping mode.Thank you.

Hello nacoleray,
Does it look like a burned in image? If so and if you have a brand new samsung tv, it should a scroll bar that cleans out the screen. Go through the settings and this should fix it. If it is last years model or older you may not have this feature. Go to a channel that is snowy, scrambled picture and leave it on for couple of hours. This should some what make it better. If it is not a burned in image it could mean that you have dead pixels. Unfortunately this is not something you can just fix. I suggest contacting your manufacture. I hope this helps, if not give me a feedback. Good luck.
- Joe

Hi:
Replace the main board.

The tv T-CON board it is dying to causes this problems.This T-CON board sit in the middle at the bottom of the tv plasma screen panel.Try website like Ebay.com to buy a whloe new refurbish T-CON board for the replacement.

Hi Its means that your television have no power.Maybe the power supply is dead.Its better to repair the power supply.If you have knowledge in TV,will you remove the back cover and check the power supply.Check the fuse if blown and check if the capacitors is leaked.

check fan at side of lamp. clean it up or replace it.

The power supply has bad electrolytic caps andif you replace the caps omn the board it will fix the problem, or just replace the the power supply.

Hi Brenda,
This kind of symptoms is an indication of faulty sustain boards inside. The unit must take apart and need to troubleshoot the boards to determine where the fault came from.
Yes this is fixable but needs to check by a qualified TV technician. Since it is only a few months old, this is under warranty period, avail it because the manufacturer will fix it for free. Don't attempt to open the back cover because it will void the warranty.
Hope I helped you.
Have a nice day!
Thanks for using Fixya.
Jdvillanueva

hello linda...
Plasma screen can be replaced with the new one, but its expensive like you buy new one.
Call samsung service center for informations.

Most the time they come with a plastic insert. If you put this in you must remove it and you will see the table top insert holes. Set the stand on something flat and have someone help you guide it in [properly then put the screws back in that you had remove to get it off. General rule of thumb is the table top stand will go straight into the bottom of you TV and may be offset to the back side of the television. Good luck finding the screws as this is the most common lost part.

video board bad

Connect the optical output from tv to input of surround reciever.Select corresponding input on reciever.

Try a new lamp.

You can go into your picture settings and change your aspect ratio. This should fit the picture to your screen. Sometimes depending on the model this can be done with the remote as a separate button there. Other than that it will be in your menu settings. You'll be looking for 16:9 16:10 4:3 etc etc for the sizes.