21HT-15H
"COLOUR ADJUSTMENT PROCEDURE
The following adjustments should only be carried out when the C RT 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? co-ordinate.
" ?DRI-BS? adjustment alters ?X? and ?Y? co-ordinates.
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 co-ordinates:
MODEL X Y Screen temperature
21HT-15H 0.290 ? 0.015 0.284 ? 0.015 8900o K-20 MPCD
6. Re-set the TV with the mains switch) to s butttoore thn ( e adjustment and ex. it service mode
7. Check colour co-ordinates ?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 co-ordinates:
MODEL X Y Screen temperature
21HT-15H 0.290 ? 0.015 0.284 ? 0.015 8900o K-20 MPCD
6. Select ?SUB-CON?. Return data to ?63?.
7. Re-set the TV with the mains switch) to s butttoore thn ( e adjustment and ex. it service mode
8. Check colour co-ordinates ?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
