Canon EOS D60, Service Manual

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If it does not meet the standard:
Check the CMOS brightness level adjustment and SPC sensor positioning. If it
is not the correct value, correct it. Also, if the user requests an increase or
decrease of the exposure, do the AE shift adjustment with the camera.
Checking the CMOS Sensor Output
1) Connect the camera and start up the adjustment software.
2) Select "
Check the Image "
3) Set the camera settings as follows. Take pictures while changing the ISO speed
and shutter speed.
Camera settings
•
Camera mode: Manual
•
Aperture: f/8.0
•
Shutter speed: 1/125 sec. (ISO: 100), 1/250 sec. (ISO: 200), 1/500 sec. (ISO:
400), 1/1000 sec. (ISO: 800)
•
ISO: See above "Shutter speed"
•
White balance: Tungsten
•
Image size: JPEG, L size
4) Press the shutter button.
5) The image will be captured. Drag (select) the mouse at the center of the image.
6) The image's RGB and YCrCb will be displayed. Check that the RGB's G value is
120 count +/-10 count. This 120 count is the same at all ISO speeds. If you
use an image-editing program like Photoshop, do the same as above by
selecting the image center to display the RGB outputs. If the G value is the
same, it is okay.
If it is not 120 count +/-10 count:
•
The light source's brightness is in error. --> See "1.6 Light Source
Maintenance."
•
The camera's ISO speed adjustment is wrong. --> Adjust the ISO speed. (When
the ISO speed is adjusted, you will also have to do all the CMOS-related digital
adjustments.)
Checking the Camera and AE Sensor Output
Check the amount of light that the camera's AE sensor receives.
1) Attach an EF 50mm f/1.8 lens to the camera and start up the adjustment
software.
2) Select "AE adjustment" and then "SPC positioning"
Part 4: Electrical Adjustments
4-8
With exposure, each count is equivalent to 0.020EV, so the
exposure becomes 0.20EV at 10 counts. For this reason, you can
judge overexposure and underexposure taking about 120 counts
(dependent on white balance) as the reference when a surface of
uniform brightness is photographed.
Reference
Be sure to use a normal EF 50mm f/1.8 lens.
CAUTION