Sharp 21V-R70M Service Manual page 20

ADJUSTMENT
ITEM
ADJUSTMENT
V14,V15,V11,V12,V13
POSITION
CONTROL
I C BUS CONTROL
2
PRE-ADJUST
OPTION SET UP, BUS SET UP, SCREEN
REQUIREMENT
CONTENT
23CH 501RE WINDOW PATTERN
INPUT
230V
CONDITION
OUTPUT CRT SCREEN DISPLAY.
1) WHITE (HIGH BEAM)
FIRST LET THE GUN POINT AT BLA CK 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
ADJUSTMENT
PROCEDURE 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
[CHECKING CONFIRMATION]
X=0.273, Y=0.280 (11,600°K + 1 MPCD)
HISTORY SYMBOL REVISED CONTENT,
OF REVISION
WHITE BALANCE
STEP RANGE 0-127, 0~255
US14
BLACK
20-1
ADJUSTMENT
ITEM
ADJUSTMENT
V04
POSITION
I C CONTROL
2
CONTROL
PRE-ADJUST
OPTION SET UP, BUS SET UP, SCREEN, WHITE BALANCE
REQUIREMENT
WINDOW PATTERN
CONTENT
230V
INPUT
CONDITION
CRT SCREEN DISPLAY.
OUTPUT
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
[VOLTAGE CONFIRMATION]
BRIGHTNESS Y=0.5 cd/m2, THEN STEP DOWN MORE 4 STEP
SYMBOL REVISED CONTENT,
HISTORY
OF REVISION
SUB-BRIGHT
STEP RANGE 0-255
US14
20-2