21HS-50N
"Colour adjustment procedure
The following adjustments should only be carried out when the CRT or IC801 are replaced.
Notes:
" This adjustment must be done after warming up the unit for 30 minutes or longer with a beam current over 700 ?A.
" The red value ?DRI-RS? should be fixed to 42. (Refer to How to access service mode section).
" ?DRI-GS? adjustment alters Y coordinate.
" ?DRI-BS? adjustment alters X and Y coordinates.
Adjustment method 1 (using the signal generator, varying the picture signal)
1. Adjust G2.
2. Input a white pattern with burst signal from SCART.
3. Position the colorimeter in the centre of screen.
4. Adjusting input signal level, select a luminance of 70 nits.
5. Operate again in service mode and select ?DRI-GS? and/or ?DRI-BS? locations to obtain colour coordinates:
XYScreen temperature
0.290 + 0.0150.284 + 0.0158900o K-20 MPCD
6. Reset the TV with the mains switch button to store the adjustment and exit service mode.
7. Check colour coordinates X and Y at 20 a 120 Nits. It may be necessary to repeat the same procedure to
obtain the above values.
Adjustment method 2 (using the signal generator, with a fixed picture signal)
1. Adjust G2.
2. Tune a white pattern with burst signal.
3. Operate in service mode :
4. Using ?SUB-CON?, select a luminance of 70 nits.
5. Operate again in service mode and select ?DRI-GS? and/or ?DRI-BS? locations to obtain colour coordinates:
XYScreen temperature
0.290 + 0.0150.284 + 0.0158900o K-20 MPCD
6. Select ?SUB-CON?. Return data to 63 .
7. Reset the TV with the mains switch button to store the adjustment and exit service mode.
8. Check colour coordinates X and Y at 20 a 120 Nits. It may be necessary to repeat the same procedure to
obtain the above values.
11 |
ACEC
SHARP
