Question about Samsung SPN4235 42 in. Plasma HDTV

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Samsung SPN4235 plasma

Tried to turn on tv no picture or sound please help me

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Power supply foult.

Posted on Apr 14, 2008

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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

2 Answers

I have samsung plasma tv 42" ps42c7s,have sound but dark ,no picture


Hi friend,,,
welcome to fixya

Commonly for Plasma tv's if the screen went out,,the problem will be the CATHODE RAY TUBE,it is costly to buy.if you want you can buy it,,or it may be the D-board problem will be also,,,
but it is unusual,so check the tube.

if your satisfied with my solution PLEASE RATE IT

thank u...

Apr 09, 2010 | 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

When i turn on my samsung spn 4235 plasma tv the sound is great but i get no picture what could this be?


It could be the mainboard is damaged, but in order to be more specific I need a little bit more details on symptoms.

Jul 07, 2009 | Samsung SPN4235 42 in. Plasma HDTV

1 Answer

Samsung Plasma (HPN4239) when viewing TV something like a black film covers the screen - there is still sound but cannot see picture. Turning off the tv for 10-20 minutes restores the picture. Sometime...


Sounds like the X-Main bd has a problem. It provides the illumination drive signal to the Panel. It can also be the Main bd. Have a trained Samsung tech troubleshoot the set.

Jul 05, 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

2 Answers

Samsung spn4235 need power supply


You can order the original Samsung replacement Power Supply Board for this model (SPN4235) from a major Samsung parts distributor at the link below:

Samsung SPN4235 Replacement Part SMPS Switch Mode Power Supply Board

Apr 08, 2009 | Samsung SPN4235 42 in. Plasma HDTV

1 Answer

My tv wont turn on now


sounds like you fried your digital board or power supply not sure need more info on what tv is doing

Dec 30, 2008 | Samsung SPN4235 42 in. Plasma HDTV

1 Answer

Samsung SPN4235 42 in. HDTV


IF THERE IS SOUND, PROBABLY THE Y-MAIN BOARD, IF IN WARRANTY CALL SAMSUNG

May 02, 2008 | Samsung SPN4235 42 in. Plasma HDTV

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