[Motorola] Motorola R2001D test set display problem.

[Stuart Perry]

Hi
    I recently turned on my Motorola R2001D test set and all I could see on the screen was a snowy display with some text in the back ground?  After 20-30 minutes the snowy effect disappeared and a frame collapsed display appeared with some small text visible. Does anyone have any ideas what could cause these faults?

Prior to these faults the focus control didn't work and the brightness control wouldn't turn down the brightness fully.

                                                        Many thanks
                                                        Stuart Perry
                                                           G0LRX