: Sellers often list 182-page English/Japanese manual reprints featuring detailed schematics and illustrated parts lists. Butkus.org : While primarily known for free user/instruction manuals
Forty years later, these cameras are suffering from a specific set of age-related maladies: "Shutter Squeak" (a dry shutter brake), dead light meters, and sticky electromagnets. Unlike its purely mechanical predecessor (the FM) or its professional sibling (the FE), the EM is notoriously finicky to repair without the correct documentation. Nikon Em Repair Manual
The EM runs on two S-76 silver oxide batteries. The manual provides a step-by-step guide using a specific Nikon digital multimeter (Model 255). It will instruct you to: dead light meters
However, the EM suffers from the same ailments as all cameras of the late 70s and early 80s: Nikon Em Repair Manual