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GX-N5E
No.
Item
Measuring
instrument
Test point and Adjustment part
Description
20. AUTO
WHITE
Adjustment
i aoe
21.
Oscillocope
( H-rate )
10:1
Gray scale
pattern
Vectorscope
Gray scale
pattern
|
VIDEO OUT
R413 (R. AWB)
R412 (B. AWB)
i Adjustment procedure with oscilloscope
|
Set the iris for
a value
of O.7Vpp-wp
at
VIDEO OUT.
. While keeping the AUTO WHITE
BALANCE
button pressed to ''SET'', alternately adjust
R413
(R. AWB)
and
R412
(B. AWB)
to
minimize the carrier of the waveform.
Fig. 3-20 (a)
L Adjustment procedure with vectorscope
]
Set the iris for a value
of 0.7Vpp-wp
at
VIDEO OUT.
. While keeping the AUTO WHILE BALANCE
button pressed to ''SET'', alternately adjust
R413 (R. AWB) and R412 (B. AWB) so that
the carrier displayed on the vectorscope is
positioned at center and minimized.
Z—|
Fig. 3-20 (b)
BACK
FOCUS
Adjustment
| Monitor TV
Siemens
chart
i
VIDEO OUT
Back Focus Adjust-
ment Screw
(Refer to ''Main
Parts Arrangement
Chart''.}
Open the iris in a dark location.
. Place the Siemens
chart at least 3 m from
the camera. (The chart should be placed as
far away as possible.)
. Adjust the focus to the chart in the TELE
position and confirm
that the focus
is not
disturbed
when
the camera
is set to the
WIDE position.
. If the focus is disturbed, loosen the Master
Lens Fixing Screw and then adjust the Back
Focus with the back focus adjustment tool
until correct focus is established.
. Repeat step 3 and 4 as necessary to obtain
optimum focus.
34E (No.
5391B)
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