20 Most Recent Samsung SPN4235 42 in. Plasma HDTV - Page 4 Questions & Answers

Try unplugging the TV and leaving it off for a bit. Then try to turn it back on. Has the picture done this before? Have you had any other issues? How old is the TV?

Well this is typical if the channels are not HD channels, they will look quite poor compared to the HD channels. However for the Movie and Expanded channels that is actually a problem with comcast not releasing the content properly. You will need to call them and have them remotely reset the signal to your box.

To call them, their number is 1-800-266-2278

Hello,

The ysus board is the most common reason.you have to replace the board, you can check on shopjimmy.com, ebay.com for replacement.Thanks and Take care

Does it show a Menu at least? If it does then just switch through the INPUT until you see a picture. Cables most likely to be Video 1, 2 or 3. Video games "LINE", or HDMI..of course "HDMI".

Your remote should have an "INPUT" button.

Hi


Thanks for using FixYa. A plasma TV is a very hard working device. It is working harder than any TV that has been built before, and as a result it produces a lot of heat. 75% of technical problems in plasma TV's are caused by overheating problems. You’ll need to check the power supply board first for any swollen/bulged capacitors. As power supply board is the hardest working board in a plasma TV, it develops voltage to supply all components, high current + high voltage. All this is only recommended if you have electrical expertise & know how to solder/re-solder components as these units contain high voltages even when switched off. These kinds of issues in plasmas usually occur after 3-4years. Please do accept the solution if the issue is resolved or post a comment for further assistance.


Thanks
Rylee

Capacitors going bad in the power supply can cause strange symptoms. They are usually easy to spot as the tops will be swollen or ruptured. Another cause would be the "main" board, also known as the SSB (small signal board) by some manufacturers. There are usually numbers on the board, sometimes more than one set, that can be googled and you can find a source for the board. Check the return policy though,.... if the board doesn't fix it you don't want to be stuck with what could be an expensive part.

Hello,

Hi
A common problem for these is bad capacitors in the power supply, Remove the back from your Tv and look at the power supply on the left hand side.

You will see roughly around 9 x capacitors that are bulged / domed shaped on top usually these are valued at 3300uf 10V any that have bulged or leaked a brown like substance should be changed.
This will cure the problem as they overheat being sat next to a heatsink that gets very hot!
Try and change them for the same 3300uf but a higher voltage.

Good luck and hope this helpout

Hi
A common problem for these is bad capacitors in the power supply, Remove the back from your Tv and look at the power supply on the left hand side.

You will see roughly around 9 x capacitors that are bulged / domed shaped on top usually these are valued at 3300uf 10V any that have bulged or leaked a brown like substance should be changed.
This will cure the problem as they overheat being sat next to a heatsink that gets very hot!
Try and change them for the same 3300uf but a higher voltage.
Hope this helps

Hello,

IF YOU HAVE A SOLID BLACK LINE RUNNING VERTICALLY THEN YOU HAVE A FAULTY MATRIX INVERTER. IF CENTRAL THE MAIN VERTICAL INVERTER NEEDS CHANGED. LEFT = LEFT VERTICAL INVERTER RIGHT=RIGHT.........

ANOTHER WAY TO GET THIS FAULT IS WORN OR DAMAGED RIBBON/PLASTIC GOING FROM THE SCREEN MATRIX TO THE INVERTER

Hope this help......

U can't fix this problems,the screen panel,just slowly dying.

No,all tvs have it own speakers.

Go to menu, then channel scan.

http://www.retrevo.com/s/Samsung-SPN4235-TVs-review-manual/id/275bh940/t/1-2/
www.scribd.com/doc/.../LG-TV-Plasma-Training-Manual
http://forum.electromaniacs.com/topic/6146-samsung-samsung-plasma-training-manual-ppt-zip/
Please find service manual and a user manual above. You most likely have a switchmode power supply problem, the PSU, is shutting down, for safety reasons, due to a fault, that may cause a fire and explosion or both. use these manuals to isolate your problem

Hi


Thanks for using FixYa. A plasma TV is a very hard working device. It is working harder than any TV that has been built before, and as a result it produces a lot of heat. 75% of technical problems in plasma TV's are caused by overheating problems. You’ll need to check the X and Y sustain buffer boards. When either of these boards goes bad common problems include negative image, no image, vertical or horizontal stripes on picture, turns on and than turns off, and many more. You’ll need to open the back off the TV and check for any swollen/bulged capacitors on these boards and replace whichever has gone bad. If still the issue is not resolved, then please check the power supply board. All this is only recommended if you have electrical expertise & know how to solder/re-solder components as these units contain high voltages even when in off position. Please do accept the solution if the issue is resolved or post a comment for further assistance.


Thanks
Rylee

No more than about $190. I hope this helps.