DMTech stopped working?

Hi,
I have a 17xts tv/dvd which has been ok for many years,I went to turn it on with the remote from standby last night but nothing happened, I changed the batteries, still no joy.I then tried to switch it on with the small switch at front lower middle [I assume this is on/off switch] still no joy. Only the red light is on and the green light which normally shows when it switches on wont light.Any ideas.
Regards,Andrew