20 Most Recent Samsung SPN4235 42 in. Plasma HDTV - Page 7 Questions & Answers

The only way to find the answer to your question is to have a trained Samsung tech troubleshoot the set. You might call 1-800-Samsung. They can recommend a qualified tech in your area. Too many causes of symptom to nail down here.

There can be any one of the following failed parts. The FET'S on the Y-main bd have exploded and may have taken out the Main Power supply as well. The Y-Main Upper Y-Scan bd may have some blown up IC Flat pacs which will cause a chain reaction taking out the Y-Main bd and the Main power Supply. The X-Main bd could also have failed. It is best to have a trained Samsung tech troubleshoot the set to find the bad parts and repair the set.

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

G'Day!


I have over 10 years experience in electronic tech support.

I know this isn't what you want to hear, but the problem you've described can't be fixed with troubleshooting. Your TV will have to be repaired. There is a part that has developed a defect and needs to be replaced. If you're still in warranty, the TV will be repaired at no charge to you. The warranty would likely be at least one year from the date of purchase from the manufacturer. If you purchased an extended service plan they will repair the TV at no charge as well.

If the TV is no longer in warranty, it will likely cost a minimum of $150 parts and labor. This is assuming that you only need one circuit board or small part. If the problem is more than one of the circuit boards, the price of repair could go much higher.

I hope I've provided you useful assistance and that this information allows you to make an informed decision as to how to proceed from here. Please be sure to vote on my response. I hope I've earned a good rating from you today.

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sounds like the corner is being pressed into the back of the Tv which usually emits a "staticy" look. You may have to pull the edge up somehow before the Tv is ruined

Most likely the TV has a power supply related problem. It's possible that it maybe a bad capacitor or transformer on the power supply board. The most common thing to go out is the circuit board that supply power to the screen. Commonly called a Backlight Inverter Board.
But, I can't say it's 100% the problem because I can't actually look at the tv over the internet.

If by chance the TV is still under warranty, go that route.
If not under warranty and If you have some electronic experience, if you can find and purchase a Service Manual over the internet; It will help you diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, test points, and part# lists. Usually, cost under $20. And most cases the new part cost less than $15.

I hope I shed some light on the subject for you.

Try leaving the TV unplugged for 30 minutes so the TV can reset itself.
If that doesn't work, most likely the TV has a power supply related problem. The most common thing to go out is the circuit board that supply power to the screen. Commonly called a Backlight Inverter Board.
I can't say it's 100% the problem because I can't actually look at the tv over the internet.
If by chance the TV is still under warranty, go that route.
If not under warranty and If you have some electronic experience, you can purchase a Service Manual over the internet and diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you blinking light codes, circuit diagrams, test points, and part# lists. Usually, cost under $20.

I hope I shed some light on the subject for you.

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

look on the website of you dish company and they should have it listed but i do not recommend programming universal remots on tv as if could change setting that the consumer is not able to change back

you can get the power supply and/or the service manual (with schematics included) here.
http://www.samsungparts.com/search/search.asp

Plasma's have a glass front so you can use windex, LCD's you should use warm water on a damp rag, not soaked and wipe gently do not push on the face. do these when the set has been off and the front is cool.

Are you using a cable box,directv,dishnetwork?High Definition?
I need more data to assist you.
solutiondoct

GENTILITY lay that set face down on a table covered with a thick blanket. There should be 4 long threaded bolts near the bottom that fasten the legs of the stand inside the framework of the set.. Remove these and the stand should slide right out.

www.mcveyelectronics.com

The only simple fix fix for that may be an "ac boot", otherwise known as "unplugging for 1 minute, the plugging it back in.
Sometimes the internal microprocessor gets scrambled and this *might* help. If not, there is an internal fault which needs attention from qualified personnel.

www.mcveyelectronics.com

Sounds like there may be a connection issue, check to make sure that ALL cables are connected properly. They could have come loose.

Habib,

If you haven;t found the manual then here is a link for it. You can also choose the language if you want.

http://www.samsung.com/us/support/search/supportSearchResultView.do?group=&group_cd=&type=&type_cd=&subtype=&subtype_cd=&model_nm=SPN4235&dType=D&mType=&model_cd=&menu=download&prd_ia_cd=&disp_nm=SPN4235&isEqualsY=

That is a bad lower buffer board.

if you can open ur tv with out damaging anything your rebon cable needs to be reseated in its connecter which mean unplug it and plug it back in carfully.

your y zuz or x zuz board is bad can walk through to find out and repair