Brand new samsung 58 '' plasma tv will not stay on. Cuts off every 15 to 20 minutes. If dvd player is being used it cuts off and goes to tv mode on its own every 15 minutes.

this page will help diagnose the problem. http://www.scribd.com/doc/15964494/Plasma-Symptoms-and-Cures

YOU HDMI SWITCHER IS DEFECT OR YOUR TV IS NOT COMPATIBLE

ok there should be be a setting in the menu probably called video source depends on what model it is, make sure you put it on hdmi,this should do it, let me know if it helps

check that all leads are pushed in

Be sure you are using a high quality HDMI cable.

The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts.
https://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.//

I have the same issue with this player hooked up to a Samsung 58 inch 1080p plasma.

DI cables have little end caps, make sure they are removed

sell me your vr325 woolletj at gvsu dot edu

This is like the problem I had for some months. After a lot of exchanging cables and troubleshooting on forums like this, I decided to call in the Sony service engineers.

The problem turned out to be nothing more than a menu selection. You need to check the setup menu under video and select the colour system you are using (NTSC, PAL). The factory setting on the TVs is 'auto' apparently and sometimes a weaker signal will cause the auto colour setting to drop in and out. In our case we set it to PAL and the problem has not recurred.