Hello Frank! Welcome to FixYa!
If LCD screen has gone blank but eye piece still works best and as you told that you are unable to read the settings then just follow the given steps to reset the Camera
First of all, Turn on the camera. When the camera is turned ON, Press MENU button, Then Press right Key. Now you are here on Settings, Now move front dial to switch pages of settings to 3/4. Here you have to keep intention that you have to move front dial to three times because you have yo move to setting page of 3/4
Now you are here on settings mode where first option as RESET, Now Press right key and the MENU key, It will rest the camera to default settings.
For more details, i am providing you the manual of Panasonic Lumix DMC-FZ30 Digital Camera,To download manual CLICK HERE
It will help you alot, You need Adobe Reader Software to open this manual, If you don't have download it then you can open this manual. It will provide you in all the operations of Panasonic Lumix DMC-FZ30 Digital Camera.I hope you have clear picture in your mind. Don't hesitate to let me know if you have some confusion.Sir, If you find my service helpful for you the your Rating as FIVE STARS and your Words of appreciation will be esteemed.Thank you for taking my service and for using FixyaConcerned: Muhammad Uzair