Dynex 32" tv picture goes black

Find the vertical IC and check for very small cracks on the solder joints of its pins and resolder (approx. 10 Pins). Also check in the same area for a 1 micro farad at 50 vdc capacitor that goes bad and replace it.

I would check to see if any capacitors have gone bad or are going bad.

Ur tuner board is defective.Replace the tuner board will solved this problems.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish tuner board for the replacement.

I have a DX LVD33 power light is red and no picture or sound screen is black. Please advise.

There are two places to look for the problems, the backlight inverter board and the power supply. Look at the power supply first since it is easier to get to, look for burnt parts, bad capacitors, etc. Look for 5vdc, 12vdc, and 24dvc.
http://en.wikipedia.org/wiki/Capacitor_plague
Please post back what you find.

The problem can be the backlight inverter board is bad or it is not getting power from the main power supply. those are the two places to look for.
http://en.wikipedia.org/wiki/Capacitor_plague

this is the problem related to display of ur TV screen...please contact the service centre...plz dont try to repair it urself..

Unplug it from the wall, wait 2 minutes and plug it back in. if problem still exists, its probably the main pcb.

This is a simple and common problem. The solder joints on the vertical output IC have cracked loose. I actually did a housecall on the exact same set with the exact same symptoms this morning! A good tech will resolder the pins of the vertical output IC and all other major solder joints on the main board and the set will play fine.