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GX-N5E
Item
Measurin
No.
9
| Test point and Adjustment part
Description
instrument
3. ADJUSTING THE SIGNAL SYSTEM
-
14./SHADING
| Oscillocope
TP-{Y-B)
R36(1/4)
V SAW
| Adjustment procedure with oscilloscope
COMP.
R36(2/4) V PB
Adjustment | /H-rate
R36(3/4)
H SAW
(B-CH)
[vat
R36(4/4) H PB
©
Set the IRIS CONTROL SWITCH to AUTO.
10:1
1. Measure TP-(Y-B)
at H-rate and adjust R36
R36 2/4
(3/4) H SAW and R36 (4/4) H PB so that
re Fea a
the waveform
becomes flat.
R36 1/4
ae R36 4/4
ai
flat
ts
Fig. 3-14 (a)
2. Measure TP-(Y-B) at V-rate and adjust R36
{1/4} V SAW and R36 (2/4) V PB so that the
waveform becomes flat.
ae to flat
|
Fig. 3-14 (b)
Vectorscope
{VIDEO OUT
| Adjustment procedure with vectorscope
©
Set the IRIS CONTROL SWITCH to AUTO.
1. Alternately adjust R36 (1/4) V SAW, R36
(2/4) V PB, R36
(3/4)
H SAW,
and R36
(4/4) so that the carrier displayed on the
vectorscope
is positioned
at
center
and
minimized.
Fig. 3-14 (c)
(Note) The
adjustment
can
be facilitated
by
raising the gain of the vecotorscope.
6E (No. 5391B)
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