MY SAMSUNG PLASMA MODEL NO: PS51D550C1RXXA DOES NOT WANT TO STARTUP FROM STANDBY MODE. IS IT POSSIBLE THAT THE SCREEN NEEDS TO BE REPLACED?

There are many reasons for the line fault to plasma TVs. Can't predict exactly; which part have the fault, and what to be replaced.
If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.
Search the site by type in the "brand name" to your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

With most of the modern model LED TVs from Samsung, the T'Con board is a built in part of the display panel, and is not replaceable. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.

If you wish to get some details; check the site linked here. Pull up older posts.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.

what is the replacement of ic 050rdc2

I see so many here with no sound/no picture issues:

ISSUES:

1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signs of damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down the problem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the generic ones like Radio Shack). Many fuses are special even aside from amperage--Don't put a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses a standby power supply that runs 7/24 and a main supply (some are combined and some not.

Here aside from checking fuses you want to examine all the filter caps on the power/standby to see if any are puffed up or buldged up in some fashion--I attach a photo of a good one---top should be silver metal and PERFECTLY flat and have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating (saves money) which causes them to fail in a year or two---the standby runs 7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have to buy and try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over. If set is opened at least look for puffed up and bad caps like in this photo.

either backlight (flourescent bulb inside) or power supply for backlight went bad - if you have voltage meter you can check if there is voltage where bulb goes and if there is replace bulb or if no power you will need to trouble shoot power supply which is common thing to go bad on these sets.

it is usually not worth paying to get this fixed if it is power supply and you might be better off just getting new set - sorry i know that is not what you were hoping to hear but....

good luck!!

If you cant afford to fix this problem I would be interested in buying this tv from you because i need a screen for it you can email me at [email protected]

This happens when the TV goes into standby mode. The slow startup is caused by the pre-set delay that allows the light tubes and inverter to warm up. As your set gets older this startup may take longer. Plasma sets, unlike standard HD TV's use more power to produce a better video experience, and as such place more demand on the power board. Your power board may be wearing down due to age, or if it is a newer set, may have a faulty HV capacitor.

You have a two part problem here 1 is a bad capacitor in the unit witch is preventing startup another another would be your decoder board witch is causing those flashes on the screen just before it remits back to standby. My professional advice is simple take it in get a estimate on it if it cost you more then $200 to fix it then you might want to get a repair manual and do it yourself or find a low cost tech that knows this stuff. Otherwise you will need to search for its replacment, let me tell you plasmas are not going to be servicable after july 2011 so get it fixed while you can or find a good home for it.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620

its likely that eith er the y sus or x sus pcb have gone faulty or it could be the main or power supply pcb. if all else fails, check voltages and if they are ok from each point , you need to replace the plasma panel.