12-7.Lens Movement; Lens Movement - Minolta EP3010 Manual

1173SBM1207A

12-7. Lens Movement

The Lens is moved by the Lens Drive Cable which is driven by the Lens Motor (stepping
motor). The motor drive pulses sent from the Motor Drive Board drive the Lens Motor to
move the Lens a given distance, corresponding to the zoom ratio, from the reference posi-
tion determined by Lens Reference Position Sensor.
There is a fixed-type Lens Aperture Cover provided at the rear of the Lens (on the 4th Mir-
ror end). It limits the amount of light striking the surface of the PC Drum.
Shaft
Lens
M5 PWB-F
PC90 PWB-A PJ40A-5
Spring
Lens Drive Cable
Lens Motor M5
Lens Aperture Cover
Control Signal Energized
Control Signal
M-32
Lens Reference Position Sensor PC90
Lens Base Bracket
Lens
Deenergized WIRING DIAGRAM
L H
Blocked Unblocked
L H
Lens Aperture
Cover
Cam
1151M023AA
1149M010AA
8-B
WIRING DIAGRAM
7-A