I GOT A DELL W3000 IT JUST WON'T TURN ON PERIOD

unplug, take out battery then hold power button for 30 seconds then plug back in and turn on
if the3 laptap gos on without the battery you need a new battery

This was a product malfunction with that TV. Dell ended up paying out $$ in a class action suit over this product...I think I got a check for like $30 in the end. There is no fix I was told...but try to toggle the master switch, or unplug and plug in again - that often times worked for me. In the end I bought a new tv though because the frustration level was too much.

I would remove the hinge / power button cover again and make sure the little pip that presses the button down it not broken, also check the little circuit board with the switch on to make sure it's not disconnected.
Try switching on with the cover removed.

Plug a light into the outlet used for the A/C, if the light does not come on when reset then the circuit breaker that provided the power to the outlet need to be reset or replaced.

Yes I tried it and now I have nothing, not even a green light. So much for that. I have 2 of these sets. If you never unplug them from 110 I never have a problem. Un plug them and wait 2-3 days and nothing.
Any lawyers what to take this on?

Don't buy Dell TV's. I have been fighting this problem for years.
A royal pain. Now there is no red in the picture. All blue and beige.

My solution? New TV and ABSOLUTELY NO DELL!!!

I BOUGHT A NEW TV.

Try turning the master power on and off a few times. Give it a few secs inbetween power offs and that should work. It's worked for me. Sometimes it takes longer that other times to show a picture.

Yes, I believe it is a power supply issue.... Problem is, I can't locate one

Had same problem as described by others, green light, audio, but no picture. Decided to look inside. Layed the TV face down on three textbooks (1 at top & 1 at left & Right) so that back (9 large screws & 2 small screws) could be removed along with stand. From the power supply (board that 110v AC plugs into) there is a cable connected to a circuit board on the left (again looking from the back of the TV) covered by metal shielding. Unplug this cable clean the male contacts with a miniture wire brush (bought mine at Home Depot) & plug the cable back into the socket. With rubber gloves (just to be safe) plug the AC cord into the back of the TV & wall and turn on your TV. The bulbs should activate in 7 - 8 seconds. Reassemble the back of the TV & install the stand. Enjoy your TV Doug