Spectra Precision Focus 30 Service Manual

Chapter 3
Theory of Operation
Focus 30/35 Service Manual 3 - 54 P/N 79000035_SM, Version 1.5
Servo side cover
Location of Servo side cover
Fig. 3-50 Location Servo side cover
Technical specification
• Bluetooth wireless connectivity range up to 10m
Functional description
The servo drive board reads the movement of the servo and focus knobs by using “Hall” effect
sensors, and detects the Power on/off button.
The servo knobs are mounted together with a magnetic disc on a bearing that is snaped into the cover.
The magnetic disc is divided in three sections. The “Hall”sensors in opposite side to the magnetic disc
create a signal corresponding to the knobs rotation and movement. This signal is sent to the MCB
board to control the Hz and V servo motors units.
A Bluetooth module is implemented.
Servo side cover
Focussing knob
V servo knob
Hz servo knob

Spectra Precision Focus 30 Specifications

General

Brand	Spectra Precision
Model	Focus 30
Category	Measuring Instruments
Language	English