Sharp AN-S422U, Service Manual

Page: 35 / 166

35
XG-V10WU
AN-SD1U/S422U
No. Adjusting point Adjusting conditions Adjusting procedure
25 White balance
checking and
readjustment 1. For the adjusting condi-
tions, refer back to Item
Nos. 8, 19 and 24 for the
RGB, Video and DVD in-
puts, respectively.
DTV input
1) Feed the 720P SMPTE
(color difference) signal.
If out of spec, take the
readjustment step below.
2) Select the following
group and subjects.
Group : DTV
Subject : CR-OFFSET
CB-OFFSET
»
Make sure the white balance is the same as on
the monitor screen. To obtain the specified white
balance, readjust the RGB, Video and DVD inputs
in this order.
27 Color-related
performance
checking 1. Feed the color bar signal.
»
Select the process mode L1. Check the Color and
Tint settings.
28 Video-related
performance
checking 1. Feed the monoscope pat-
tern signal.
»
Select the process mode L2. Check the Picture,
Brightness and Sharpness settings.
29 Audio-related
performance
checking 1. Feed the stereo audio sig-
nal.
»
Select the process mode L3. Check the Bass,
Treble and Balance settings.
30 RGB-related
performance
checking 1. Feed the RGB signal.
»
Select the process mode L4. Check the Picture,
Brightness, Red, Blue, Clock, Phase, H-Pos and
V-Pos settings.
31 Off-timer per-
formance
checking
»
Select the process mode OFF. Make sure that the
off-timer starts with "5" (minutes) onscreen and
counts down minute by minute each second, and
that the set turns itself off with "0" (minutes)
onscreen.
26 Set-up 1. Select the following.
Group : VIDEO 1
Subject : SET UP B
SET UP C
»
Make sure the SET UP B and SET UP C settings
are 6 and 1, respectively.
32 Thermistor
performance
checking
»
Get the thermistor status list displayed onscreen.
33 Auto sync
performance
checking 1. Feed the phase check pat-
tern signal.
»
In the VGA, SVGA, XGA, SXGA and UXGA
modes, make sure the Clock, Phase, H-Pos and
V-Pos settings can be automatically adjusted.