Ntsc White Balance Adjustment - Panasonic GP6DU Technical Manual

NTSC White Balance Adjustment

Equipment required: NTSC Pattern Generator, Colorimeter
Panel Settings; Picture = Standard, Color Temperature = Cool, Aspect Ratio =
16:9
Step 1 - Using the Pattern generator; apply a 20 IRE
Window pattern signal to the panel. Apply the color sensor
to the panel and monitor the values.
Step 2 - Adjust the Sub Bright Setting to 10 cd/m
Step 3 - Set the G Cutoff Setting Value to 80.
Step 4 - Adjust the Red and Blue Cutoff settings to match
the values in Table 10.
Step 5 - Readjust the Sub Bright setting to 10 cd/m
Step 6 - Apply an 80 IRE window pattern signal to the
Panel.
Step 7 - Set the G Drive Setting value to E8.
Step 8 - Adjust the Red and Blue Drive settings to match
the values in Table 10.
Step 9 - Reapply the 20 IRE pattern and 80 IRE patterns
and verify that the drive and cutoff settings match the
settings in Table 10. Adjust as necessary.
Step 10 - Adjust the All Drive Settings value to FC.
Step 11 - Reapply the 20 IRE pattern and verify the light
settings to match with the table below, adjust as necessary.
Color Temperature
Cool (High)
Normal (Mid)
Warm (Low)
Step 12 - Press the R button and then the Picture button on the remote control.
Change the color temperature to Normal. Press the R button again, and then the
Action button to re-access the IIC mode.
Step 13 - Repeat steps 2 to 11 for Normal Color Temperature.
Step 14 - Press the R button and then the Picture button on the remote control.
Change the color temperature to Warm. Press the R button again, and then the
Action button to re-access the IIC mode.
Step 15 - Repeat steps 2 to 11 for Warm Temperature.
Step 16 - Change the Color temperature to Cool Mode, then re-adjust the Sub
bright value to "30".
2
.
Reference Values
X
0.276
0.288
0.313
Table 10
115
Figure 52 -
2
.
20 IRE Window
pattern
Figure 53 -
80 IRE Window
pattern
Y
0.276
0.296
0.329