Adjustment; Pal Panel White Balance Adjustment - Panasonic TH-50PV500A Service Manual

11 Adjustment

11.1. PAL panel white balance adjustment

Instrument Name
· · · · W/B pattern
· · · · Color analyzer (Minolta CA-100 or equivalent)
· · · · Ensure aging is adequate (Longer than 15min.)
· · · · Make sure the front panel to be used on the final set is fitted.
· · · · Make sure a color signal is not being shown before adjustment.
· · · · Put the color analyzer where there is little color variation.
1. Display the white balance pattern.
2. Check that the color balance is "cool".
3. Enter the "Service-Menu1" mode.
4. Select "G-CUTOFF" item, using the color-key "Red" or "Green", and set to "128", using the
color-key "Yellow" or "Blue".
Also, "B-CUTOFF" and "R-CUTOFF" set to "128"
5. Set "G-DRIVE" at "208".
6. Touch the signal receiver of color analyzer to the highlight window´s center, and adjust B
drive and R drive so x, y become the "Color balance Cool" in the below table.
7. Set "ALL-DRIVE" to "252".
8. Set colorbalance to "Normal".
9. Fix G cutoff , B cutoff and R cutoff at "128".
10. Fix G drive at "208".
11. Adjust B drive and R drive so the highlight window´s x, y become the "Color balance
"Normal" in the below table.
12. Set "ALL-DRIVE" to "252".
13. Set color balance to "Warm".
14. Set G cutoff, B cutoff and R cutoff to "128".
15. Set G drive to "208".
16. Adjust B drive and R drive so the highlight window´s x, y become the "Color balance Warm"
shown in the below table.
17. Set "ALL-DRIVE" to "252".
Connection
RF input
Panel surface
Procedure
39
TH-50PV500A / TH-50PV500H / TH-50PV500M
Remarks
User setting: Normal
Remarks
Picture menu : Dynamic
ASPECT : 16:9
· · · · Highlight section
Signal amplitude 75%