Hitachi FP-Z31 Operation Manual page 19

(1) There must be a white object with an area which is more than 10% of the whole screen.
(2) The said white object must be brighter than another object.
(3) The signal level of the said object must be less than 100% but more than 70%.
Note 1: The auto white balance and auto black balance can be set with the lens IRIS AUTO/MAN
switch at A (auto) or M (manual). If it is set at M with the black balance setting, the iris will
close automatically and the auto black balance will be set. However, the iris will remain closed
and must therefore be opened manually. At the A position, the iris will open to the appropri­
ate value upon completion of the setting.
Note 2: The AUTO WHT/AUTO BLK switch
it is flipped with the finger(s), a mistake will occur in operation. This switch has a light operat­
ing force and so when it is not to be operated, try not to touch it.
(4) Tracking adjustment
Return the filter disc to the state in (3) (b) and set the lens zoom to T (telephoto) and adjust the lens
T
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focus optimally. Now set the lens zoom to W (wide) and ch;ck th�t the focus is still optimally adjusted. If not,
readjust using the tracking control on the
point differs between the R, G and B pictures, remove the right cover, open the PRA unit, loosen the
R/G/B assembly lock screw and focus optimally using the tracking controls.
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@
must be operated properly. If operated so that
len_ s . If there is no tracking control on the lens or if the focal
Lens tracking control
Lens
Lens tracking lock screw
@ :
Tracking controls
© :
Rotation controls
Fig. 6.6
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