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GX-N5E
Measuring
7
-
rae
No
Item
a et uineHt
Test point and Adjustment part
|
Description
9.
|SHADING
{Oscilloscope
|TP-8
Alignment magnet
©
Shoot the white pattern and set the iris to ob-
Adjustment
R646 (FOCUS)
tain 500mV at TP-1.
( V-rate )
R621
(H. PB)
10:1
R627 (H. TILT)
1. Measure
TP-8
and
adjust
the
alignment
R632 (V. PB)
magnet
and R646 (FOCUS) alternately until
R626
(V. TILT)
the carrier is at maximum
and the phase line
White
V.TILT
V.PB
is displayed clearly near the center. (Refer to
pattern
[Rese
Fig. 2-9 (a}.)
ill
!
ini
Phase line
ae
fi TD
H-rate 10:1
Fig. 2-9 (a)
2. Adjust
R621 (H. PB) and R627
(H. TILT)
< Example >
until the carrier becomes flat, as shown in
Alignment magnet adjustment
Fig. 2-9 {a).
Put the concave
3. Adjust R632
(V. PB) and R626
(V. TILT) un-
faces together.
Z
'
$
til the carrier becomes
clear, as shown
in
Fig. 2-9 (a).
4. Repeat steps 1 ~ 3 until optimum shading
is obtained.
5. Fix the
alignment
magnet
position
with
eceubiube
adhesive tape.
Alignment magnets
(Note)
1. Confirm
that
the
carrier
changes
uniformly when the iris is opened.
Turn the two haives until
there are 150° out of align-
\
ment.
Be sure to turn both
halves.
(Compensation
with
alignment
magnet)
2. Confirm
that
the
carrier
changes
uniformly when the Focus VR is turn-
ed.
|
(Compensation with Dynamic Focus.)
Turn one by one back
toward 0°.
|
(No. 5391B) 5E
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