Mamiya RZ67 - Battery Light Not Coming On - Require assistance!

Hello everyone,

Just purchased a used RZ67 llD - in good condition but the red batter light does not come on. Changed battery, orange light shows, shutter works at all speeds. **When the back is rotated the red batter light is visible. Cleaned all of the contact - same problem. Any ideas would be greatly appereciated!

David
Ontario, Canada

Dave

Is the dark slide in the back? This needs to be inserted to check the battery level.

Also, for sheer posterity, a polaroid back won't register with the electronics of the camera.