Sub Bright Adjustment - Panasonic TH-42PA50E Service Manual

11.2. 1080i white balance adjustment
Instrument Name
· 1080i 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 "224"(37/42").
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 "224"(37/42").
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 "224"(37/42").
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".

11.3. Sub bright adjustment

Instrument Name
1. PAL signal generator (or RF)
· Color balance adjustment is finished for each signal.
· Do adjustments in a dark room.
1. Display the pattern for adjusting subbright from video input.
2. Use "Sub-Bright" in the <Sevice-Menu1> mode to adjuct so the top part of the step section
in the below diagram faintly shows up and the middle fades away.
Connection
Comonent terminal
Panel surface
Procedure
Connection
Connect to the input terminal
Procedure
33
TH-42PA50E / TH-42PE50B / TH-37PA50E / TH-37PE50B
Remarks
User setting: Normal
Remarks
Picture menu: Dynamic
ASPECT:16:9
· Highlight section
Signal amplitude 75%
* The Color balance COOL differs from
Japanese model values.
Remarks
User setting: Normal
Remarks
Picture menu: Dynamic
Color balance: Normal
ASPECT: 16:9
* If using RF ch.E04,
(Sub-Bright test pattern),
adjust so the 6th section shows up and the 7th
fades away.