Sharp 21FL94 Service Manual - Page 20

21FL94 20 ADJUSTMENT ITEM ADJUSTMENT POSITION V14,V15,V11,V12,V13 WHITE BALANCE STEP RANGE CONTROL I2C BUS CONTROL PRE-ADJUST REQUIREMENT OPTION SET UP, BUS SET UP, SCREEN CONTENT 23CH 501RE WINDOW PATTERN INPUT CONDITION 220V OUTPUT CRT SCREEN DISPLAY. 0-127, 0~255 ADJUSTMENT PROCEDURE 1) WHITE (HIGH BEAM) FIRST LET THE GUN POINT AT BLACK POSITION (AS DRAWING ATTACH), ADJ V04 UNTIL BRIGHTNESS Y BECOME 5 cd/m2, THEN LET THE GUN POINT AT WHITE POSITION (AS DRAWING ATTACH), ADJUST V01 UNTIL BRIGHTNESS Y BECOME 150 cd/m2, ADJUST THE BUS DATA OF V14 (R DRIVE), V15(B DRIVE) UNTIL THE AXIS OF COLOR TEMPERATURE BECOME X=0.273, Y=0.280 2) BLACK (LOW BEAM) LET THE GUN POINT AT BLACK POSITION, IF THE VALUE SHIFTED AWAY FROM THE DATA ADJUSTED IN STEP 1), ADJUST AGAIN THE TWO SERVICE DATA WHICH HAVE CHOSEN AT SCREEN ADJUST SO THAT TO OBTAIN THE SIMILAR AXIS AS ABOVE. *WARNING: DO NOT DISTURB THE MINI STEP GUN DATA DURING THIS ADJUSTMENT. **REPEAT STEP 1), 2) TO GET A REGULATED POSITION. WHITE US14 [CHECKING CONFIRMATION] X=0.273, Y=0.280 (11,600°K + 1 MPCD) HISTORY SYMBOL REVISED CONTENT, OF REVISION 20-1 BLACK ADJUSTMENT ITEM ADJUSTMENT V04 POSITION CONTROL I2C CONTROL SUB-BRIGHT STEP RANGE 0-255 PRE-ADJUST OPTION SET UP, BUS SET UP, SCREEN, WHITE BALANCE REQUIREMENT CONTENT WINDOW PATTERN INPUT 220V CONDITION OUTPUT CRT SCREEN DISPLAY. 1) LET THE GUN POINT AT BLACK POSITION (AS ATTACH DRAWING), ADJUST V04 BUS DATA UNTIL BRIGHTNESS Y=0.5 cd/m2, THEN STEP DOWN MORE 4 STEP ADJUSTMENT PROCEDURE BLACK US14 [VOLTAGE CONFIRMATION] BRIGHTNESS Y=0.5 cd/m2, THEN STEP DOWN MORE 4 STEP HISTORY SYMBOL REVISED CONTENT, OF REVISION 20-2