Sharp LC-19LS410UT, Service Manual

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LC-19LS410UT, LC-22LS510UT
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2. Display adjustment
White Balance adjustment
Only adjust YPbPr Mode and copy to all of input source
General set-up
:
Equipment Requirements: Minolta CA-210 or Equivalent Color analyzer
Astor Pattern Generator VG-848 , VG-859 or equivalent instrument.
An internal full white pattern is available in the MT5387 platform, you can use the internal pattern to replace Astor
Pattern Generator VG-848.
Input requirements:
Input Signal Type : YPbPr signal
1. 1080i mode, RGB Full white by VG-848 , VG-859 or internal full white pattern.
2. Select Picture mode to Standard mode and check the x, y data.
Input Signal Strength : 1 Vpp for Y signal
If use internal pattern, send UART command: /n/ycproc/scepat 1 818 (80% white).
If use internal pattern, send UART command: /n/ycproc/scepat 1 204 (20% white).
Input Injection Point : YPbPr (RAC jack)
Alignment method:
Initial Set-up:
1. Select source as “INPUT 2 ” (Component 1).
2. Set Smart Picture mode as “Standard”.
3. Apply “RGB Full white” pattern by signal generator or internal full white pattern.
4. Enter factory mode menu: press MENU + Numeric keys “1999” .
Alignment:
1. At FAC mode menu, select ”19. Color temp” item and change to “Cool”
2. Apply RGB Full white pattern and change signal level to 204 (80% white pattern).
If use internal pattern, set level to 818 (80% white pattern).
3. Adjust the 20. Scaler R GAIN, 22. Scaler B GAIN values to meet “Cool” color coordinates specification below. (Please keep
21. Scaler G GAIN at 0)
4. Apply RGB Full white pattern and change signal level to 48 (20% white pattern)
If use internal pattern, set level to 204 (20% white pattern).
5. Adjust the 23. Scaler R Offset, 25.Scaler B Offset values to meet “Cool” color coordinates specification below. (Please keep
24.Scaler G Offset at 0)
6. Repeat step 2, 3, 4, 5, twice to meet “Cool” color coordinates specification below.
7. Select ”26. Clr temp Copy” item and perss RC “ X ”. The Cool adjust value will copy to all of input source automaticly.
8. Select ”19. Color temp” item and change to “Normal”.
9. Apply RGB Full white pattern and change signal level to 204 (80% white pattern).
If use internal pattern, set level to 818 (80% white pattern).
10. Adjust the 20. Scaler R GAIN, 22. Scaler B GAIN values to meet “Normal” color coordinates specification below. (Please
keep 21. Scaler G GAIN at 0)
11. Apply RGB Full white pattern and change signal level to 48 (20% white pattern)
If use internal pattern, set level to 204 (20% white pattern).
12. Adjust the 23. Scaler R Offset, 25.Scaler B Offset values to meet “Normal” color coordinates specification below. (Please
keep 24.Scaler G Offset at 0)
13. Repeat step 9, 10, 11, 12, twice to meet “Normal” color coordinates specification below.
14. Select ”26. Clr temp Copy” item and perss RC “ X ”. The Normal adjust value will copy to all of input source automaticly.
15. Select ”19. Color temp” item and change to “Warm”.
16. Apply RGB Full white pattern and change signal level to 204 (80% white pattern).