Sharp LC-26D7U Service Manual page 39

(7) DVI-I (digital) signal adjustment
Adjustment item
1 Adjustment
2 Auto adjustment Page 9/14
performance
8. Adjustment of white ballance
(1) White ballance adjustment
Adjustment item
1 Adjustment
2 Auto adjustment
performance
Adjustment conditions
Feed the 100% white 1/2 window pattern signal to DVI-I (digital) input.
DVI-I (digital)
XGA (1024 x 768)
60Hz
H,V SYNC
Bring the cursor on [ËDVI DIGITAL] and press [ENTER].
[ËDVI DIGITAL FINISH] appears when finished.
Adjustment conditions
1. Apply the following settings to the set.
AV MODE: [STANDARD]
Aging Time: 60 Min.
2. Connect a white balance adjustment jig and the set.
Optical measuring machine: [Minolta CA-210]
PC
RS-232C communication cable
3. Use an RS-232C command to display the screen for two-point adjustment.
Two-point adjustment mode (MSET0000)
Adjustment value initialization (MSET0004)
Low-side adjustment point setting (SDML0057)
High-side adjustment point setting (SDMH0204)
[Adjustment]
1. Set the low-side adjustment point to 57 (SDML0057). For RB, adjust the
chromaticity of the low-side adjustment pattern to standard values using
commands.
(G fixed)
2. Set the high-side adjustment point to 204 (SDMH0204). For RGB, adjust
the chromaticity of the high-side adjustment pattern to standard values
using commands. (Negative adjustment)
3. Write the adjustment values with MSET0003 command and turn off AC
power.
[Adjustment values]
Optical measuring machine: [Minolta CA-210] (Focus on the center of the
screen.)
High
Low
Note
Adjustment procedure
1/4
1/2
1/4
1/2
1/4 1/4
Adjustment procedure
Standard value Adjustment value
x = 0.295 ± 0.0004
y = 0.305 ± 0.0004
x = 0.276 ± 0.001
y = 0.283 ± 0.001
Set the following before adjustment.
AV MODE: [STANDARD]
Monochro: ON
Aging Time: Min. 60min.
39
LC-26D7U
LC-32D7U
LC-37D7U
100% White
0% Black
Tolerance
± 0.0015
± 0.0015
± 0.0035
± 0.0035