Sharp LC-32LE250M, Руководство по обслуживанию

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LC-32LE250M
6 – 4
B. WHITE BALANCE ADJUSTMENT
a) White Balance Adjustment
ITEM CONDITION PROCEDURE
1 Setting Backlight : MAX
AV Mode : DYNAMIC
Active Backlight : OFF
Set the luminance
meter on the centre of
the screen
For the details of white balance adjustment procedure, please refer to white
balance adjustment spec for Kameyama model.
1. Confirm the set condition.
2. Connect the white balance jig.
3. Through RS-232C command, adjustment mode screen is displayed.
2 Auto
Adjustment [command]
Adjustment Mode
KRSW0001
KKT10037
FACT0001
Setting
KYOF0001
OSDS0001
SBSL16_ _
Multi point adj. Mode
MSET0000
WBI20255
Point 2
WBI20
229
MG2G****
MG2B****
MG2R****
Point 1
WBI10
051
MG1G****
MG1B****
MG1R****
Set Max.Level
MGMG****
MGMR****
MGMB****
Write
MSET0003
[Adjustment Procedure]
1.
Using the R/C, set the LCD TV to adjustment mode.
2. Measure Max brightness (L
max
).
3. Calculate min. brightness (L
min
) = L
max
/ 3000.
4. Measure Point 2 brightness (L
high
).
5. Set the reference value R,G,B of Point 2 ( Ref.2 ) = 3664 x ( 229 / P2)
where P2 = 255 x [(L
high
– L
min
) / (L
max
– L
min
)]
1/2.2
6. Set the specified gradation for point 2, fix the most faint colour to get
reference value, adjust others 2 colour to minus adjustment for
reference value of point 2.
7. Measure Point 1 brightness (L
low
).
8. Set the reference value R,G,B of Point 1 ( Ref.1 ) = 816 x ( 51 / P1)
where P1 = 255 x [(L
low
– L
min
) / (L
max
– L
min
)]
1/2.2
9. Set the specified gradation for point 1. Set G of point 1 to the default
value [(Ref.1 x G value of point 2 / Ref.2 ), with fractions rounded] and
adjust RB to the reference value of point 1.
10. Set the G of point Max. to the default value (4080 x G value of point 2 /
Ref.2). Set the R,B Max. value [G
max
– G value of point 2 + (R,B value
of point 2)].
11. Adjusted value is writing at [command] MSET0003.
12. Shut down the AC power.
•
Initial value at RGB 2 point : 3664
•
Initial value at RGB 1 point : 816