Minolta 9000 Service Manual page 107

36
e AF checking/adjusting
When having repiaced flexible PC board-B set, mirror or mirror box, or when having received trouble
with AF, re-adjust AF following [1)~[) (p. 38-41).
When having trouble other than AF, re-check AF following "AF operation checkit
shown below.
MiMeasuring instruments : Camera 1/0 tester (MODEL 10-5101)
Master lens (2072-0001-75)
AF adjusting tool (2072.0002-76)
Tripod attachment (2072-0003-75)
Tripod attachment collar (2071-0003-75)
2 AF chart- I (2072.0004-75)
2 AF chart-(1 (2072-0005-76)
: Power supply adapter (2071-1092-75)
! Sub mirror adjusting toll (2071-1092-75)
+ 1000mm collimator (MODEL RC-M, 0. 1)
2 Hexagon wrench (1.5)
2 Flood lamp (color temperature : about 280K)
AF operation checking
Before AF checking, initial loading, body back and finder back should be completed.
1, AF area checking
1) Set the instruments as below.
® Focus mee: M
Master lens (Aigm the marks of 2m)
>| 'ign focus frame with
Fe plane
'white box of chart.
2) Turn touch switch (or metering switch) ON : low-contrast signal should be indicated (D4 blinking).
If other focus signal than low-contrast lights, re-adjust AF following procedures (I) to [7] since it
shown AF area deviation.
2. In-focus checking
Set focus mode to AF and check AF operation below. If out of requirement, re-adjust AF follow
ing procedures Z]~[.
* Center focus frame on chart of collimator and operate AF :
lens should stop at co wit finder signal lighting.
+ Autofocus on subject 2-3m away that can be autofocused >
in-focus signal should light, and subject in viewfinder should be clear.
@ Preparation for AF adjusting
Before adjusting AF, make sure the followings :
@ + Body-back and finder-back adjusting have already been completed.
+ External parts except bottom cover are on the body.
+ Focusing screen is standard type (2071-5805).