Service manual

XG-XV1 E/A
No.
Adjusting point
Adjusting conditions
Adjusting procedure
8 RGB counter- 1. Feed the black-and-red
0’ Using the membrane switch or the remote control
voltage
(25%) stripe signal (XGA).
button, adjust the data in order to minimize the flicker.
adjustment If such a pattern signal is
0’ Make the same adjustment for BC (B) and GC (G).
not available, select the
:
horizontal stripe signal from
the desktop pattern menu.
2. Make the following choice:
Group : OUTPUT 3
Subject : RC (R)
9 RGB gradation
1. Feed the XGA green-only
l Adjust the Gl-GAIN data until the first and second
regeneration gradation pattern (more
gradations can be slightly recognized. (First gradu-
adjustment than 16 steps) signal.
ally raise the Gl-GAIN level until the gradation gets
Group
: OUTPUT 1
recognized, and then adjust the level by lowering it
Subject : Gl-GAIN
again.)
10 RGB white
balance
1. Feed the XGA gray scale
l Choose the subjects Rl -BLK and Bl -BLK and adjust
signal.
the black balance of the gradation. Choose the sub-
Group
: OUTPUT 1
.jects Rl-GAIN and Bl-GAIN and adjust the gray-to-
Subject : Rl-BLK
while balance (so that the entire screen looks colour-
Rl -GAIN (R)
i less).
Bl -BLK
Bl-GAIN (B) ’
11 NTSC 4fsc
1. Choose the group VIDEO 1
l Turn C450 to have the frequency counter read
to keep the unit without sig-
14.31818 MHz _t50 Hz.
nal.
2. Select the colour system
into N358.
3. Connect the frequency
counter between TP401
and GND.
12 PAL 4fsc
1. Choose the group VIDEO 1
l Turn C446 to have the frequency counter read
to keep the unit without sig-
17.734475 MHz *50 Hz.
nal.
2. Select the colour system
into PAL.
3. Connect the frequency
counter between TP401
and GND.
13 Horizontal
center
1. Feed the NTSC mono-
* Using the membrane switch or the remote control
scope pattern signal.
button, adjust the data to have the same overscan.
Group : VIDEO 1
Subject : NTSC-H
23