Panasonic TX-PR42UT30 Service Manual ▷ View online
29
9.1.3.
White balance adjustment
The adjusting method is different according to the PEAKS EEPROM version.
[copy adjustment] : Peaks EEPROM ver.1.00-
[Differential and copy adjustment] : Peaks EEPROM ver.1.**-
[copy adjustment] : Peaks EEPROM ver.1.00-
[Differential and copy adjustment] : Peaks EEPROM ver.1.**-
Name of measuring instrument
Connection
Remarks
W/ B pattern
Color analyzer
(Minolta CA-100 or equivalent)
Color analyzer
(Minolta CA-100 or equivalent)
Panel surface
Steps
Remarks
[copy adjustment]
Connect IIC cable (bus controller-cable) after banner OSD appear.
And after SRQ-L, begin an adjustment 2 seconds later.
Connect IIC cable (bus controller-cable) after banner OSD appear.
And after SRQ-L, begin an adjustment 2 seconds later.
• 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 colour variation.
• Make sure a color signal is not being shown before adjustment.
• Put the color analyzer where there is little colour variation.
Note:
Copy Adjustment method in service mode.
When you push [OK] key in each item,
Adjustment data is copied between HD data and SD data.
When you push [OK] key in each item,
Adjustment data is copied between HD data and SD data.
Picture menu : Dynamic
ASPECT : 16:9
ASPECT : 16:9
Condition is same at
alternative method too.
alternative method too.
1. Enter the service mode.
Please receive the Analog-RF.
Or, please select CVBS/YUV/HDMI. (No inputting is possible.).
(Forbid Analog-RF with no signal.)
Or, please select CVBS/YUV/HDMI. (No inputting is possible.).
(Forbid Analog-RF with no signal.)
2. A number key [1] or [2] are operated and [WB-ADJ] is displayed.
Check that the color temp is [COOL].
3. A number key [0] is operated and select [METHOD 01].
4. A number key [5] is operated and [INNER PATTERN] is displayed.
4. A number key [5] is operated and [INNER PATTERN] is displayed.
5. Select [G-CUTOFF] item, using the number-key [3] or [4], and set to [80], using the volume-key [+] or [-].
Also, [B-CUTOFF] and [R-CUTOFF] set to [80].
6. Set [G-DRIVE] at [D0].
7. Touch the signal receiver of color analyzer to the INNER PATTERN's center, and adjust B drive and R
7. Touch the signal receiver of color analyzer to the INNER PATTERN's center, and adjust B drive and R
drive so x, y become the [COLOR TEMP COOL] in the below table1.
8. All RGB drive increase so that the maximum drive value of RGB may become [FF].
([ALL-DRIVE] set to [FF].)
9. Set color temp to [NORMAL] using [7] key.
10. Fix G-CUTOFF, B-CUTOFF and R-CUTOFF at [80].
11. Set [G-DRIVE] at [D0].
12. Adjust B-DRIVE and R-DRIVE so the INNER PATTERN's x, y become the [COLOR TEMP NORMAL] in
the below table1.
13. All RGB drive increase so that the maximum drive value of RGB may become [FF].
([ALL-DRIVE] set to [FF].)
14. Set color temp to [WARM] using [7] key.
15. Fix G-CUTOFF, B-CUTOFF and R-CUTOFF at [80].
16. Set [G-DRIVE] at [D0].
17. Adjust B-DRIVE and R-DRIVE so the INNER PATTERN's x, y become the [COLOR TEMP WARM] in the
15. Fix G-CUTOFF, B-CUTOFF and R-CUTOFF at [80].
16. Set [G-DRIVE] at [D0].
17. Adjust B-DRIVE and R-DRIVE so the INNER PATTERN's x, y become the [COLOR TEMP WARM] in the
below table1.
18. All RGB drive increase so that the maximum drive value of RGB may become [FF].
([ALL-DRIVE] set to [FF].)
19. Confirm [METHOD=01].
Please refer table2-3 to address.
Asking matter to execute white balance difference adjustment.
Please feed back the DAC value in the adjusted each color temperature in an internal pattern.
Please feed back the DAC value in the adjusted each color temperature in an internal pattern.
METHOD=01
copy adjustments
copy adjustments
30
Steps
Remarks
[Differential and copy adjustment]
Execute adjustment for color temp. [NORMAL], and set data for color temp. [COOL], [WARM] by data shift WB
of HD (or PAL) copies the adjustment data from an adjusted format side.
Execute adjustment for color temp. [NORMAL], and set data for color temp. [COOL], [WARM] by data shift WB
of HD (or PAL) copies the adjustment data from an adjusted format side.
Note:
The adjustment does only color temp. [NORMAL].
A adjustment value difference from [NORMAL] is written to EEPROM as for [COOL] and [WARM] by operat-
ing a [OK] key.
As for WB of HD (or RF), the adjustment data from an adjusted format side is copied simultaneously.
Text color of the adjusted value changes into red
A adjustment value difference from [NORMAL] is written to EEPROM as for [COOL] and [WARM] by operat-
ing a [OK] key.
As for WB of HD (or RF), the adjustment data from an adjusted format side is copied simultaneously.
Text color of the adjusted value changes into red
→ black at the same time too.
1. Enter the service mode.
Please receive the Analog-RF.
Or, please select CVBS/YUV/HDMI. (No inputting is possible.).
(Forbid Analog-RF with no signal.)
Or, please select CVBS/YUV/HDMI. (No inputting is possible.).
(Forbid Analog-RF with no signal.)
2. A number key [1] and [2] are operated and [WB-ADJ] is displayed.
Check that the color temp is [NORMAL].
3. A number key [0] is operated and select [METHOD 03].
4. A number key [5] is operated and [INNER PATTERN] is displayed.
4. A number key [5] is operated and [INNER PATTERN] is displayed.
5. Select [G-CUTOFF] item, using the number-key [3] or [4], and set to [80], using the volume-key [+] or [-].
Also, [B-CUTOFF] and [R-CUTOFF] set to [80].
6. Set [G-DRIVE] at [D0].
7. Touch the signal receiver of color analyzer to the INNER PATTERN's center, and adjust B drive and R
7. Touch the signal receiver of color analyzer to the INNER PATTERN's center, and adjust B drive and R
drive so x, y become the [COLOR TEMP NORMAL] in the table 1.
8. All RGB drive increase so that the maximum drive value of RGB may become [FF].
([ALL-DRIVE] set to [FF].)
9. A number key [0] is operated and select [METHOD=01].
Please refer table2-3 to address.
METHOD=03
Differential and
copy adjustment
Differential and
copy adjustment
31
32
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