Service manual

28
XG-NV7XU
No. Adjusting point Adjusting conditions Adjusting procedure
21 Color system
performance
check
1. Receive the color bar sig-
nal.
» In the process mode and select L1. Check the color
and tint.
23 Audio system
performance
check
» In the process mode nad select L3. Check the bass,
treble and balance.
22 Video system
performance
check
1. Receive the monoscope
pattern signal.
» In the process mode and select L2. Check the pic-
ture, brightness and sharpness.
20 DVD Color 1. Feed the color bar signal of
the 480I component signal to
the D-SUB input terminal.
2. Select the following subject.
Group : DVD
Subject : COLOR
3. Connect the oscilloscope to
TP804.
» Adjust the level difference between the 100% white
and red portions to 0.1 ±0.02 Vp-p.
100% White Red
24 RGB1
performance
check
1. Receive the RGB1 signal. » In the process mode and select L4. Check the pic-
ture, brightness, red, blue, clock, phase, horizontal
position, and vertical position.
26 Off-timer
performance
check
» In the process mode and select OFF. Make sure that
the off-timer starts with “5” (minutes), counts down
each minute in 1 second, and turns off the set at “0”.
25 RGB2
panel link video
check
1. Make the following settings:
RGB2 mode and XGA spe-
cific for panel link. Enter the
32-step gradation pattern.
» Make sure that the gradation pattern is not corrupted
and that the black portion is not too sinking.