3. Model 636 Camera Test Procedures (in the order in which they should
be performed).
Model 636 Flash Timing This test determines if the proper infrared sensing is
accomplished during a strobe exposure. The time between shutter blades being
95% fully open and strobe fire is measured and displayed in milliseconds.
NOTE: This procedure assumes the Tester is ON and the Camera is on the horn,
against the Tester.
DETAILED TEST PROCEDURE SUMMARY
1. Turn the Selector Knob in the 1. Selector to 640 Flash Timing.
middle of the panel to 640
FLASH TIMING.
2. Press the S10 button only to 2. Press S10 to charge flash.
charge the electronic flash.
Do not fire the flash.
3. Press the tester RESET button. 3. Press Reset.
4. Cover the photocell and press 4. Cover cell, press S1 for ambient exposure.
S1 to make an ambient exposure. Ignore readings.
Ignore the readings.
5. Cover the photocell and press 5. Cover cell, press S1/S10 for
Sl/S10 to take a flash exposure. flash exposure. Record reading on
Record the reading shown on the Timing Meter. Compare to spec.
Timing meter and compare it to
the specification.
6. Repeat steps 2, 3, 4 and 5 two 6. Repeat 2, 3, 4 & 5 two more times
more times to insure accurate
readings.
7. If the readings are not within 7. If readings are out-of-spec,
the specifications, refer to the see Adjustments
Adjustments section.
96
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