Werbung
|
GX-N5E
-4
Measuring
:
.
ee!)
ro
Item
Test point and Adjustment part
Description
instrument
_
(R-CH)
Oscilloscope
| TP-(R-Y)
R30 (1/4) H PB
Adjustment procedure with oscilloscope
R30 (2/4)
H SAW
H-rate
R30 (3/4) V PB
V-rate
R30 (4/4)
V SAW|°
Set the iris to obtain
300
~
400mvV
at
10:1
TP-1.
White
1. Measure TP-(R-Y) at H-rate and adjust R30
pattern
(1/4) H PB and R30 (2/4) H SAW so that the
waveform
becomes flat.
to flat
Fig. 3-14 (d)
2. Measure TP-(R-Y) at V-rate and adjust R30
(3/4) V PB and R30 (4/4) V SAW so that the
waveform becomes flat.
to flat
LI
Fig. 3-14 (e)
°
Set the iris to obtain
300
~
400mV
at
TP-1.
1. Alternately
adjust R30
(1/4)
H PB, R30
(2/4)
H SAW,
R30
(3/4) V PB, and R30
(4/4) V SAW so that the carrier displayed on
the vectorscope is positioned at center and
minimized.
TP-(Y-B)
TP-R-Y)
Fig. 3-14
(f)
(Note) The adjustment
can
be facilitated by
raising the gain of the; vectorscope.
(No. 5391B) 27£
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