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Samsung plasma 55" tv won't power on. Model: 850FH-YB01. Bight flash on wall behind the tv. TV off. I think my power source is bad. But what is that, How or where do I purchase one from?

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  • Samsung Master
  • 1,998 Answers

The power board is the one that the power lead connects to on the back of the panel there is two fuses on the board check them for continuity and replace if blown with ones of the same values
look at the tops of the capacitors for popping they should be flat topped not bulging up replace any that are bulging
finding a supplier for you without a geographic location for yourself is not possible
also you can get the power board repaired or replaced but the power surge during the failure could have damaged other components making it cheaper to replace the whole TV with a new one

Posted on Dec 28, 2016

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

pizzaguy3274
  • 4 Answers

SOURCE: 42fd9954

Not a fix, but it got my tv on.
I removed the back and tried the power switch.
I located the relay that was clicking.
I have two blue relays in the middle of my power board.
I placed a hair dryer over the relay for a few minutes.
After four tries of the power switch and it stays on!!!!!
Heat keeps the relay from just clicking off.
I don't know why.
This will at least get the tv on though.

Posted on Apr 12, 2008

  • 109 Answers

SOURCE: Samsung Model: HP-R4262 42" Plasma Problem, pink pixelation/ghosting

Wow, I've been an installer and salesman in the consumer electronics industry since before the first plasma TV came out (Phillips 42" and Fujitsu 42" in 1996) and this is the first time I've ever seen that kind of an answer. "Take this to a repairman and he can add more plasma" what is the repairman a doctor. If it were that easy no one would ever have to upgrade or replace their screens. You can't add more plasma to a screen, if you don't believe me call Samsung and ask them for yourself like I did. I was actually so dumbfounded by your answer that I called a tech friend of mine at Samsung and asked him, his answer; "does this guy work for you?" I told him no and he said, "I was going to tell you to fire him because that's the dumbest thing I've ever heard anyone tell a customer".
What you need to do is take you plasma TV to an AUTHORIZED Samsung dealer/repair shop and inquire about the hazing/ghosting problem with them. Follow this link to find an authorized repair center near you: http://www.samsung.com/us/support/repairlocation/serviceLocator.do?group=&type=&subtype=&model_nm=HP-R4262&dType=D&mType=UM&vType=R&prd_ia_cd=&acc_ia_fl=&disp_nm=HP-R4262

Posted on Jun 19, 2008

robwan
  • 20 Answers

SOURCE: Samsung Plasma 42" TV - 2006

Hi, this is quite a common problem for plasma screens and LCD screens. The fluroscent backlight is more than likely faulty and would need replacing. The best thing to do is to take it to a service centre because there are no user servicable parts inside the plasma.

Posted on Nov 01, 2008

electrotech1
  • 1126 Answers

SOURCE: Samsung model HP-T5054 Plasma TV

When you remove the back of the set. You will fined a couple of caps on the power supply board that are bulged and they need to be replaced, or you can buy a new power supply at www.partstore.com. If you want to just purchase the caps, you can get them at www.mcmelectronics.com

Posted on Oct 16, 2010

SD Tech
  • 14553 Answers

SOURCE: Samsung Plasma tv pn43d450 tv wont turn on

If caps there not puffed or leaking voltages in and out of the power board must be checked next (right at turn on of the set) to see which come up and or instantly go off....this is the place to begin.

Posted on Mar 27, 2012

Testimonial: "Quick response thanks What could it be if its not the power board? The logic boards wouldnt do that would they "

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Try disconnecting all of your HDMI cables and plugging the power cord of the TV into another wall outlet. If this resolves the issue, you may have had a small power surge from either your wall outlet or one of your source devices. It is recommended to connect your TV to a surge protector if you haven't done so already.

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Samsung plasma won't turn on


Here's is what you need to look for when describing a problem for troubleshooting purposes:

0) What model is the TV (you've covered that)

1) Does the TV respond to command to turn on?
(yes - continue; no - 70% bad power, 30% bad main board)

2) Once it responds (clicks), does a front LED or other indication show that it turns on? It's OK if there's no display.

(that can be model specific and is not certain indication for anything until known what is specific for the model)

3) If such an indication comes up does it remain on until you act or does it go off by itself?
(Stays on - power supply likely good; turns off - power supply *may* be good, but not certain)

4) If the power indication stays on by itself can you make it go off by pressing the power button or do you have to disconnect from AC power?
(responds to power off - 90% power supply likely OK and 90% OK main board; does not respond to power off - 90% bad main board)

Here is a link for test/repair of the power supply of your TV, hope it would help:

http://www.coppelltvrepair.com/p/895/samsung-pn58a550s1fxza-power-supply-repair-service-for-dead-or-clicking-on-and-off-problem

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Even you find it the shipping won't be cheap. They do make universal stands for LCD/PLASMA TVs. You may want to see at Walmart or a similar store if they carry the universal stand.
About a year ago a customer brought a 55" Panasonic plasma TV to our shop, and we asked him to bring the TV with the stand he found out his wife, trashed it and he made a nice stand out of pieces of wood. If you keep looking on ebay you may be able to it.

Best of luck
AAA TV SERVICE

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Next brand:New Pioneer KURO plasma tv,case closed!Reliable,and top of the line.
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