Canon EOS-1V Service Manual page 86

Part 4: Electrical Adjustments
1.18 AF S
CAUTION
The AF sensors cannot be cleaned because the AF light shield is in the way. To
clean the AF sensors, blow air through the aperture.
PURPOSE
To clean the AF sensors.
INSPECTION PROCEDURE
1) On the AF Adjustment Menu, select
[F6] AF Sensor Cleaning.
2) The reflex mirror will go up and down
and the shutter will be set to bulb.
3) Clean the AF sensors and mirrors.
4) After cleaning is completed, press
Return.
C
ENSOR LEANING
• Blow just enough air so that it reaches the AF sensors. Wiping the sen-
sors with alcohol, etc., will cause uneven cleanliness and worsen the con-
dition.
• At the same time, clean the secondary mirror and the rear of the main
mirror.
SHU_OPEN
AF/TTL Sensor Cleaning
To clean, blow air just enough to reach the parts.
Using alcohol, etc.,
to wipe the sensors may degrade the AF performance.
After cleaning, press Return.
(Do not press the shutter button.
It will result in error.)
4-32
Start cleaning.