1. Model 636 Flash Timing Aperture Adjustment
a. Remove the Front Plate/Lens Panel from the apron (Fig. 3).
b. Using tweezers, grasp the end of the opening blade spring.
c. Move the opening blade spring up in the rack to increase the reading or down in the
rack to decrease the reading (Fig. 4).
d. Reassemble and retest the camera. Readjust the opening blade spring if necessary.
e. If the adjustment cannot bring the reading into specification, replace the opening blade
spring and repeat step c.
f. If the reading is still out-of-specification,disassemble the camera to the shutter level.
Examine the shutter area for loose or misplaced parts, binding blades, etc. Correct any
problems found and reassemble and retest thecamera. Readjust the opening blade
spring if necessary.
Fig. 3 Removing Front Plate/Lens Panel
Fig. 4 Adjusting Opening Blade Spring
Opening blade
spring
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