BX61 Focus repair

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sushidelic
Posts: 233
Joined: Fri Jun 10, 2016 5:46 am

BX61 Focus repair

Post by sushidelic »

A pretty specific question, but has anyone experience with the motorized focus on a BX61? Probably schematics / service manual?
Specifically, I want to know about the purpose of the fork photoelectric barrier that reads out a disc every 90° (the disc is located directly on the stepper motor shaft in the back of the scope)...

Best regards and thanks,
Michael

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