Display Adjustment; White Balance Adjustment; General Set-Up; Equipment Requirements - Sharp LC-32A28L Service Manual

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 MT5305 platform, you can use the internal pattern to replace Astor Pattern Generator VG-848.
Input requirements:
Input Signal Type
Input Signal Strength : 1 Vpp for Y signal
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).
(2) 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
4. Apply RGB Full white pattern and change signal level to 48 (20% white pattern)
(4) 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
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 "
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).
(9) 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
11. Apply RGB Full white pattern and change signal level to 48 (20% white pattern).
(11) 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
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 "
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).
(16) If use internal pattern, set level to 818 (80% white pattern).
: 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.
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).
21. Scaler G GAIN at 0).
24.Scaler G Offset at 0)
keep 21. Scaler G GAIN at 0).
keep 24.Scaler G Offset at 0)
2008-03-14
". The Cool adjust value will copy to all of input source automaticly.
". The Normal adjust value will copy to all of input source automaticly.
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LC-32A28L, LC-42A48L