My dear radio has decided to act in a most unbecoming way, rendering it useless. It powers up, beeps, and the display lights up but the text on the screen is very faint and it refuses to scan. It appears I can change modes somewhat but cannot get any response from any channels. It worked fine until it spent a winter in my garage in a box and when turned on in the spring behaved this way. Can anyone offer a starting point for troubleshooting or better yet a decent source for a service manual, or even better still someon willing to take a crack at its repair? Many thanks in advance!