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GX-N5E
Measuring
2
;
i
b g
no.] Item
| iecaunant
| Test point and Adjustment part
Description
conicide, as shown in Fig. 3-1.
Basic line
Basic
l i
Optical
asic line
black level
Fig. 3-1
a@eaa
@
a
a
133"
te.
e
(Note) After
completing
the
adjustment
of
AGC BAL-1 and AGC BAL-2, repeat the
above
adjustment
so that the carrier
center
of the vector
scope
does
not
move when the AGC is set to ON and
OFF with the lens cap attached.
2. | AGC
Oscilloscope
|TP-2
R207 (AGC BAL-1)
BAL.-1
Adjustment
( V-rate )
10:1
©
Close the iris manually (AGC OFF).
1. Connect TP-6 and TP-7 with the CR jumper
shown in Fig. 3-2 (a).
2. Set R225 to the mechanical center.
3. Adjust R207 (AGC BAL-1) until the projec-
ting section of the waveform
and the base
line coincide, as shown in Fig. 3-2 (b).
Black Gate Pulse
Basic line
Basic line
Basic line
To
10uF / 25V
TPS
Fig. 3-2 (a) CR jumper
18E (No. §391B)
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