Flange Back Measurement (With The Flange Back Tester) - Canon EOS 40D Service Manual

2.2 Flange Back Measurement (with the Flange Back Tester)
When using the Flange Back Tester, follow the instruction manual
CAUTION
supplied with the product and the explanation on preparation below.
<Preparation>
1) Checking of the power cable
Make sure to check for any damage or brakeage of the power cable before connecting
it to the tester. The power cable is not provided with this tool, so one that meets local
standards should be purchased.
Voltage: Depends on the country
Electric power: 60VA
2) A ging and Calibration of the Reference Surface
(1) C heck for dust and dirt on the mount reference surface (including jigs) and the sensor
part of the flange back tools.
(2) I ncreases in internal temperature will affect the measurement results, so perform aging
for 1 hour or more before measuring the flange back and perform reference surface
calibration with the special calibration tool.
(3) W hen flange back is measured more than 1 hour after the previous reference surface
calibration, perform the reference surface calibration with the special calibration tool
before measuring.
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Fig. 008
Calibration Jig
Fig. 010
9
Adjustments
Fig. 009