Repair on Powershot S2 IS camera

Repair on Powershot S2 IS camera

Powershot S2 IS 5.0 Mega Pixels - When turning on camera the view finder display screen is black. Looking through the view finder is also black. Tried new fresh batteries. Tried taking pictures anyway but the pictures are also black. When you turn it on the lens extends like normal just can’t see anything to take pictures. Help.