20 Most Recent Insignia NS-LCD42HD-09 42 in. HD-Ready LCD TV - Page 8 Questions & Answers

It sounds to me like the power supply for the back light needs to have new capacitors installed. TV's are now manufactured to fail shortly after the warranty runs out! See if you have a friend that can do the repair for you.

You need to change the capacitors in the power supply section of the TV

region codes are as follow. Region 1 North America, Region 4 South America, Australia, Region 2 Europe, Region 5 Asia Major,Africa,Region 6 Asia Minor, Probably your DVD is from another region....hope this helps

Need more info. How is your video source connected? Are you on the correct input? Is your video source on?

Flip the TV over! Just kidding!! When you installed the main board was it identical to the old main board? If so, you might want to look at the old board and ensure there are no jumpers that needed to be set on the new board. Some companies make generic control boards for tvs but have different jumper settings for different models. The jumpers are just little black blocks that connect different pins to each other on top of the circuit board.

You have a week capacitor on the power board. It warms up and shuts off to not damage the rest of the TV.