Comments on: How To Repair Samsung Plasma TV Won’t Turn On

By: hidroportosjalcobia@hotmail.com

hidroportosjalcobia@hotmail.com — Tue, 21 May 2024 19:28:56 +0000

A forma como as explicações foram transmitidas não como se apreender muita coisa sobre reparação de plasmas. Muito obrigado meu amigo e mestre.
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The way the explanations were conveyed didn't make it possible to learn much about plasma repair. Thank you very much my friend and master.

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By: Douglas

Douglas — Thu, 19 Jan 2023 17:39:21 +0000

I have a 20-year-old PN50A400 50-inch TV with no picture, buck power is on and the screen is vaguely grey. Any suggestions?

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By: affie

affie — Fri, 26 Feb 2021 07:04:07 +0000

In reply to skwong.

mr sk.i also have ps51e470 have no vs n va output,pwr standby 5v also have...without connect any board only main board...starting sound activate...already check all component but still not gind it..any suggestion for troubleshoot it mr sk?

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By: SOMANTAK GHOSH

SOMANTAK GHOSH — Tue, 18 Aug 2020 07:11:39 +0000

Hi, Mr. S K Wong,

I have Samsung 43" Plasma TV 43H4900 model which is 6 yrs old. Yesterday the TV just stopped working with a "kaput" noise and observed that my MCB tripped. I checked with other appliance and found that the power socket at wall is fine.
What may be the issue? Let me tell you that I have no idea about any of these electronic repairs. I just want to know what is the actual fault and also to check if the service engineer is cheating me or not.
Thanks in advance.

Regards,
Somantak Ghosh

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By: leonard james keyaa

leonard james keyaa — Sat, 23 May 2020 05:25:14 +0000

In reply to Ahmed.

I have aproblem with vs voltage.is not staying on comes then gos off.itryed to check invater its like ok,ineed your helep pls.

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By: Ahmed

Ahmed — Thu, 19 Mar 2020 10:01:29 +0000

Mr Wong
Good in detail i appreciate yours efforts

I have checked all this components shorted but now issue i cant found these parts in local Pakistan market. some peoples have old circuit boards of faulted or dead tv and surprising thing all of boards have these shorted parts
any equivalents specially smc 630

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By: Manohar Arekar

Manohar Arekar — Fri, 27 Sep 2019 08:07:37 +0000

Hello i got a same Samsung plasma tv problen. vs and va output voltages comes out just 210 and 55 volt when power on and then fast down to zero volt.test on load and without load same condition. So could you tell me how can i activate the power supply
Plasma TV SAMSUNG model PS43F4900

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By: Roberto

Roberto — Sat, 06 Apr 2019 15:13:01 +0000

In reply to skwong.

I have a plasma ps51e490 tv where the tensions are missing (va vs)
I replaced the failed components on the ysus module but without results. even if I disconnect the ysus connector I do not have the voltages (va vs) immediately go down to 0volt.this power supply works even without load?

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By: Matt

Matt — Thu, 15 Feb 2018 09:48:51 +0000

Hello,
I recently got a Samsung Plasma TV PS-42c96HDX for free.
I fixed the smtp board which had bad capacitors at the bottom right part .
I checked voltages outputs and everything seems to be ok. when I switch on the the TV I have Vs / Va / Vamp 18v / Vg / 12v / DC 5.3V / STD 5V as expected.

The logic board led is blinking and I can see the red light from the optic source on the main board.
The main board processors are hot.

But there is no start up sound and a very fade image backlight seems to flicker a little.

At this point, I could think I got a problem with X Board or Y Board but would it prevent the tv from starting correctly ?

I followed the service manual instructions and I disconnected X board, Y board and Logic board from STPM but TV did not started.

Reconnecting each board one by one didn't make it too.

Any Idea, please ?
Thank you !

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By: david Jones

david Jones — Tue, 19 Dec 2017 22:03:47 +0000

David Jones here - I should have mentioned the flashed fault codes which are a bit odd !
dash longdash longdash longdash dash pause dash pause pair of quick dots repeated 5 times. This last bit (5 pairs of dots ) then repeats ad infinitum. please forgive the morse code analogy but how else could I describe it ! ! !

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