Sharp 20F630, Service Manual

Page: 21 / 64

21
21-1
21-2
20F630
CU20F630
ADJUSTMENT ITEM ADJUSTMENT POSITION CONTROL PRE-ADJUST REQUIREMENT CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PROCEDURE
WHITE BALANCE
V14,V15,V1
1,V12,V13
STEP RANGE
0-127,
0~255
I 2
C BUS CONTROL
OPTION SET
UP
, BUS SET
UP
, SCREEN
23CH 501RE WINDOW P
A
TTERN
120V CR
T
SCREEN DISPLA
Y.
1)
WHITE
(HIGH BEAM)
FIRST
LET
THE GUM POINT
AT
BLACK
POSITION (AS DRA
WING
A
T
T
ACH),
ADJ V04 UNTIL
BRIGHTNESS Y
BECOME
5 cd/m2
, THEN
LET
THE GUN POINT
AT
WHITE
POSITION (AS DRA
WING A
T
T
ACH),
ADJUST
V01
UNTIL
BRIGHTNESS
Y
BECOME
150 cd/m2
, ADJUST
THE BUS DA
T
A
OF
V14
(R DRIVE),
V15
(B DRIVE) UNTIL
THE
AXIS
OF COLOR
TEMPERA
TURE BECOME
X=0.273, Y=0.280
2)
BLACK
(LOW BEAM)
LET
THE GUN POINT
A
T
BLACK POSITION, IF
THE V
ALUE SHIFTED
A
W
A
Y
FROM
THE DA
T
A
ADJUSTED IN STEP
1),
ADJUST
AGAIN
THE
TWO SER
VICE DA
T
A
WHICH HA
VE CHOSEN
A
T
SCREEN
ADJUST
SO
THA
T
T
O
OBT
AIN
THE SIMILAR
AXIS
AS
ABOVE.
*W
ARNING:
DO NOT
DISTURB
THE MINI STEP
GUN DA
T
A
DURING
THIS ADJUSTMENT
.
**REPEA
T
STEP
1), 2)
T
O
GET
A
REGULA
TED POSITION.
[CHECKING CONFIRMA
TION]
X=0.273,
Y=0.280 (1
1,600°K + 1 MPCD)
BLACK
US14
WHITE
ADJUSTMENT ITEM ADJUSTMENT POSITION CONTROL PRE-ADJUST REQUIREMENT CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PROCEDURE
1
)
LET
THE GUN POINT
A
T
BLACK POSITION (AS
A
T
T
ACH DRA
WING),
ADJUST
V04 BUS DA
T
A
UNTIL
BRIGHTNESS
Y=0.5 cd/m2,
THEN
STEP DOWN MORE 4 STEP
SUB-BRIGHT
V04
STEP RANGE
0-255
I
2
C CONTROL
OPTION SET
UP
, BUS SET
UP
, SCREEN, WHITE BALANCE
WINDOW P
A
TTERN
120V CR
T
SCREEN DISPLA
Y.
[VOL
T
AGE CONFIRMA
TION]
BRIGHTNESS
Y=0.5 cd/m2,
THEN STEP
DOWN MORE 4 STEP
BLACK
US14