MAMIYA - Mamiya M645 Super AE Prism TechBulletin
by MAMIYAComprehensive technical service documentation for the Mamiya M645 Super AE, assembling factory-issued improvement bulletins from 1987 that address specific field problems with the camera's electronic control system. The manual begins with a detailed wiring diagram of the complete electronic assembly, followed by two numbered service bulletins addressing distinct operational issues. Bulletin 052 (October 1987) documents the AE mirror remaining locked in the upper position when the prism finder is attached or removed — a condition resolved by replacing transistors Q1 and Q2 and substituting resistors R8 and R11 with jumper pins. Bulletin 049 (July 1987) covers intermittent false illumination of the LED "OVER" indicator caused by static electricity damage to integrated circuit IC3, corrected through the installation of protective diodes (D2–D5), a resistor (R37), and a capacitor (C13). Each modification includes annotated circuit board schematics that precisely identify component locations and corresponding part numbers, providing repair technicians with the exact specifications needed to execute the upgrades correctly.
Documentation must be downloaded on a computer (PC, Mac, or Linux).
Do not use a smartphone or tablet to download documentation; they generally lack sufficient memory capacity to handle large files, and few users know how to locate the download folder on these devices.
Once downloaded, you can use it right away and even print the pages you need, or use your smartphone in photo mode to translate into the language of your choice: Google Translate
Document Details
- Format
- Pages
- 6
- Size
- 3.3 MB
- Category
- Photography