Sharp LC-70EQ10U Service Manual page 76

LC-60/70EQ10U,SQ10U/15U/17U,TQ15U,UQ17U
9.2. Gamma2.2 Adjustment (LC-60/70UQ17U)
Adjustment Adjustment con-
point
1 Setteing AV MODE:
DYNAMIC
Backlight:+16
Active Contrast:
OFF
Resolution
Enhanced:
Mode1
2 Automatic adjust-
ment execution
3
ditions
For details on the adjustment procedure, refer to the latest version of "Gamma Adjustment
Specification".
1. Confirm the set condition.
2. Execute aging for 30 minutes or more.
3. Connect the jig.
4. Adjust the probe position to the screen position where the white balance has been
adjusted.
• ESet the MAX adjustment gradation to the specified gradation and measure the brightness.
Multiply the brightness value by 10, then set the integer part to the adjustment value.
• ESet the MID7 adjustment gradation to the specified gradation and measure the brightness.
Multiply the brightness value by 10, then set the integer part to the adjustment value.
• ESet the MID6 adjustment gradation to the specified gradation and measure the brightness.
Multiply the brightness value by 10, then set the integer part to the adjustment value.
• ESet the MID5 adjustment gradation to the specified gradation and measure the brightness.
Multiply the brightness value by 10, then set the integer part to the adjustment value.
• ESet the MID4 adjustment gradation to the specified gradation and measure the brightness.
Multiply the brightness value by 10, then set the integer part to the adjustment value.
• ESet the MID3 adjustment gradation to the specified gradation and measure the brightness.
Multiply the brightness value by 10, then set the integer part to the adjustment value.
• ESet the MID2 adjustment gradation to the specified gradation and measure the brightness.
Multiply the brightness value by 10, then set the integer part to the adjustment value.
• ESet the MID1 adjustment gradation to the specified gradation and measure the brightness.
Multiply the brightness value by 10, then set the integer part to the adjustment value.
• ESet the MIN adjustment gradation to the specified gradation and measure the brightness.
Multiply the brightness value by 100, then set the integer part to the adjustment value.
[Adjustment gradation]
MAX adjustment gradation 255/255 gradation
MID7 adjustment gradation 232/255 gradation
MID6 adjustment gradation 196/255 gradation
MID5 adjustment gradation 159/255 gradation
MID4 adjustment gradation 108/255 gradation
MID3 adjustment gradation 76/255 gradation
MID2 adjustment gradation 48/255 gradation
MID1 adjustment gradation 20/255 gradation
MIN adjustment gradation 0/255 gradation
Confirm that the result of the adjustment is OK.
• Confirm that the r adjustment VAL value is within the spec.
VAL value spec: 100±15
Adjustment procedure
5 – 17