Question about Samsung SPN4235 42 in. Plasma HDTV

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Tv went out

No picture no sound. I think it the power supply board. how do i get one, and how do i fix it.

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Just happened to me, it's the power supply $280 then you get hosed for $350 flat labor.

Posted on Jan 07, 2008

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Samsung LED tv


The power supply board probably needs to be replaced. Sounds like a loose solder joint on the board

If you need further help, reach me via phone at https://www.6ya.com/expert/steven_a67ead41eb5fc62a

Jul 05, 2016 | Samsung Televison & Video

1 Answer

The picture went "dark" but


Hi,

This is an indication that the backlight of your unit is not working properly. This is caused by faulty either in the power supply board or the inverter board. You have to check the output voltage of the power supply board feeding the inverter board, if present replaced the inverter board. If not, check the power supply board for leaky electrolytic capacitor or replaced the entire power supply board.


Hope I helped you.
Have a nice day!
Thanks for using fixya.

Sep 04, 2011 | Toshiba 14VL44G 14 in EDTVReady LCD TV

3 Answers

My zenith plasma tv popped real loudlike a car backfiring and then the tv picture went black. power on green light wil turn on but it automatically cuts itself back off to the red light


There's an over current fault in the power supply or the Y-sustain convergence board. The loud pop was either a capacitor or pico-fuse breaking from excessive current overload. Sounds like 2 or 3 mosfets have shorted at the gate ends. Plasma TV's always have this problem because they generate too much heat and the components cant take the load conditions. Make your next TV an LCD...

To fix this problem have your local repair shop do it for you.....

any questions please ask.....

Jan 20, 2010 | Zenith Z50PX2D 50 in. Plasma HDTV

1 Answer

Power went out then came back on. now there is not picture but sound on tv. how do we get picture back?


It sounds like the backlight inverter board went out, or the main power supply that supplys the power to the inverter board.

Aug 09, 2009 | Sharp LC46SB54U 46 in. LCD TV

2 Answers

TV's on. No Picture...No Sound


Have a problem with Zenith 37 HDTV. Medel number: Z37LZ5D As wathcing TV, along with 'pop' sound, TV went dead. LG service center gave an advice to unplug the power cord and press ON/OFF power switch about 1 min. Then plug power back and turn on the TV. Well, the green light blink for a while and solid green, but still no screen, no audio. Search the Web and someone suggested to replace Power Supply Board which will fix the problem. Again, search the Web and came out with Power Supply Board. LG Electronics/Zenith 'Power Supply Assembl' with $124.95 from PartStore.com. Is it the right solution? Do I have to replace entire Assembly Board? not just replacing some fuse? Any cheaper way to do? If I have to replce PSA board, any suggestion to how? Comment posted on Apr 22, 2009 I have a basic knowledge of electric and electronics, such as rewiring entire house for renovation and assemble entire computer from scratch.
Actually, the TV belongs to my father and the problem that I stated was based on what he told me.
So the question is based on the symptom that I posted, how sure are you that the problem is the Power Supply Board?
Is it good to order PSB? Comment posted on Apr 23, 2009 Purchased 2 and half years ago. Expired one year warranty. Comment posted on Apr 23, 2009 Zohail,
This is LCD TV.
There is no problem with the wall socket nor current.
I put other appliances on same wall socket and worked.
It has to be internal problem.
As I mentioned on the main post, there was a 'pop' sound while watching and TV went dead.
Turn on remote control, there is blink green light and then green stays on, but no sound, no screen.
Turn off remote control, light turns red. Comment posted on May 14, 2009 I fixed the TV.
Orderd power supply board which cost me $136.51 total.
Replacing was simple.
Just removed the rear panel cover then electronic board housing cover.
Took power supply board with all the connector cables and replaced with new one.
Problem was a transformer connector which got burned and blow up the plastic cover.
But no problem with fuse and capacitors.

Thanks all for advises.

Jan 01, 2008 | Zenith Z37LZ5D 37 in. LCD TV

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