I have a JVC TV Model AV-25TS1EK Serial No. 12162040. Since about six months the contrast, brightness and colour has been adjusted to maximum from the remot controller and the picture is still dark. The picture quality is OK when i use DVD disc through the DVD player its only the TV channel which are showing darker. With remot controller i can not achieve any further adjustment.
What adjustment is available inside the TV to make the setting normal?