Question about Samsung SPN4235 42 in. Plasma HDTV

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Samsung Plasma SPN4235 No Picture/But Sound

Hi,
I have 4 year old plasma, yesterday all of a suddine picture was gone, but there was still sound. I see you say trouble shoot this power supply thing.

Where do I find the power supply board? and if I need to replace these things, where do I purchase them from?

Thanks

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POWER SUPPLY IS WORKING IF YOU HAVE SOUND..WHEN Y-SUS GOES BAD..IF PUTS HEAVY LOAD ON POWER SUPPLY...WHEN YOU TRY TO POWER UP UNIT..IT WILL GO TO IMMEADIATE SHUTDOWN...THIS IS NOT THE CASE HERE..YOU SAID YOU HAVE SOUND...SOUNDS LIKE A BAD Z-SUS BOARD PROBLEM TO ME..CALL ANDREWS ELECTRONICS IN CALIFORNIA FOR PART # AND PRICE..JUST GIVE MODEL #...JOE ACE

Posted on Jun 12, 2008

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1 Answer

Samsung 42 plasma SPN4235 NO SOUND


Check its speaker. Check its sound settings. Visit the site named 'Electro-help' for more details. Click this link. View it in "Timeslide" option, which can be selected from the drop down box menu by the [Sidebar] tag, at the top left corner of the display window. It will make search easy. There are more than 1000 posts to different brand TVs now. Pull up older posts there.

Oct 21, 2012 | Samsung SPN4235 42 in. Plasma HDTV

1 Answer

Sound no picture


Sound but no picture....
Should ask yourself, does it PRIME? Meaning, That's where the Plasma panel lights up a little for about 10 seconds after startup. -- If it doesn't prime, then you need either the SMPS, YZUS, possibly both. OR you might need to check the ZSUZ. Driver boards can be culprits too.
And can you even get to the Menu, Volume, etc. but just picture?
Then you need the signal board.
Unfortunately that's pretty common with Plasmas. Can burn out or burn "in" easily.

Here's a great forum you might like. http://www.austech.info/electronics/20607-lg-plasma-tv-has-no-picture.html

Different Brand but similar problem. This site is excellent for do it yourselfers. As for Samsung Parts, be thankful if you are a DIY-er that the parts are much cheaper if you install yourself. Separate with installation adds up very quickly. Personally, I decided to go with the Rear Projection Samsung several years ago and haven't had any major problems. Heard then that Samsung was having lots of complications of this nature.

Here's the link to Samsung Site:

http://www.samsung.com/us/support/owners/product/SPN4235

You can try the tricks on this site:

http://www.broadbandreports.com/forum/r22996341-samsung-spn4235-sound-but-no-picture

To be honest though sounds like either bad SMPS and/or bad Y-SUS pcb's.

Wish you good luck.

Mar 08, 2011 | Samsung SPN4235 42 in. Plasma HDTV

1 Answer

Samsung ps50c96hd sound ok no picture


hi my Samsung ps50c96hd has sound ok no picture

Dec 18, 2009 | Samsung SPN4235 42 in. Plasma HDTV

1 Answer

No picture but with sound


Ur LCD inverter board it dead,replaced it will get picture back.

Dec 14, 2009 | Samsung SPN4235 42 in. Plasma HDTV

1 Answer

Was watching TV and the picture just went black (still had sound)


eithor the flyback just craped out or the tube went
try turning up the flyback failing that call a service tech and ask for a quote
quote cose 30-50 bucks
atleast you will know forsurre if it's worth fixing

Aug 06, 2009 | Samsung SPN4235 42 in. Plasma HDTV

1 Answer

The sound works but no picture at all.


its eht is not working so call a repairing man then put it new. the original costs about 2600

May 20, 2009 | Samsung SPN4235 42 in. Plasma HDTV

1 Answer

Picture is not coming on samsung spn4235


Remove the Power Supply cable to Y Main board and check the Vs voltage in Power Supply board.
1. Vs voltage is OK, replace the Logic board or Y Main board.
2. Vs voltage is NG, replace the Power Supply board.

Dec 31, 2007 | Samsung SPN4235 42 in. Plasma HDTV

6 Answers

LG PLASMA TV WITH COLOURED LINES OVER SCREEN


If the Video (Picture/Pix) is gone but you can hear the Audio (sound), then it could mean the YSUS PCB Assembly is gone/kaput/finish. Can replace the PCB, not repair the PCB due to timing circuitry involve. Cost maybe roughly $500 depending where you located. The PCB is located on the left hand side of your TV when you are facing the back (Back open). Might find 3-4 brown flex membrane connecting to the plasma panel. The PCB has a silver or black aluminum heatsink (big) on it.
Good Luck.

Dec 22, 2007 | LG 42PX5D 42 in. Plasma HDTV

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