Sharp 20U-FS1, Service Manual

Page: 21 / 56

21
20U-FS1
CU20FS1
21-1
21-2
ADJUSTMENT ITEM ADJUSTMENT POSITION CONTR
OL
PRE-ADJUST REQ
UIREMENT
CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PR
OCEDURE
1
)
IN SER
VICE MODE, SET
V04&V11&V12&V13
T
O
127;
V14&V15
TO
64, GET IN
Y
-MUTE BY R/C AND SET
V19
TO
“
1
”, PICTURE APPEAR
IN CUT
-OFF CONDITION
2
)
ADJUST
THE SCREEN SO
THA
T CUT
-OFF LINE APPEAR IN LO
W
BRIGHT
, THEN JUDGE
THA
T
WHETHER
THE CUT
-OFF LINE APPEAR
IN RED OR GREEN OR BLUE COLOR, IN
THIS CONDITION
V11=R-
CUT
OFF
,
V12=G-CUT
OFF
,
V13=B-CUT
OFF
, FIX
THE D
A
T
A
OF
THE
COLOR APPEAR IN CUT
OFF LINE AND USE R/C
T
O
ADJUST
THE
O
THER
TW
O CUT
-OFF D
A
T
A
SO
THA
T CUT
-OFF LINE COLOR BE-
COME WHITE.
3)
TURN
THE SCREEN
VR OF FBT SO
THA
T CUT
-OFF LINE JUST DIS-
APPEAR AND USE R/C
T
O
SET
V19
TO
“
0
”, NEXT DISABLE
THE Y
-
MUTE SO
THA
T PICTURE APPEAR IN NORMAL MODE.
SCREEN
V11,V12,V13
STEP RANGE
0-255
I 2
C CONTR
OL
OPTION SET UP
, B
US SET UP
WINDO
W P
A
TTERN OR US4CH LION HEAD
120V CONFIRMA
TION ON CR
T DISPLA
Y
ADJUSTMENT ITEM ADJUSTMENT POSITION CONTR
OL
PRE-ADJUST REQ
UIREMENT
CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PR
OCEDURE
WHITE B
ALANCE
V14,V15,V11,V12,V13
STEP RANGE
0-127, 0~255
I
2
C B
US CONTR
OL
OPTION SET UP
, B
US SET UP
, SCREEN
23CH 501RE
WINDO
W P
A
TTERN
120V CR
T SCREEN DISPLA
Y.
[V
OL
T
A
GE CONFIRMA
TION]
1)
WHITE
(HIGH BEAM)
FIRST LET
THE GUM POINT A
T
BLA
CK
POSITION (AS DRA
WING
A
T
T
A
CH), ADJ
V04 UNTIL
BRIGHTNESS Y
BECOME
5 cd/m2
, THEN
LET
THE GUN POINT A
T
WHITE
POSITION (AS DRA
WING A
T
T
A
CH),
ADJUST
V01
UNTIL BRIGHTNESS
Y BECOME
150 cd/m2
, ADJUST
THE B
US D
A
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 BLA
CK POSITION, IF
THE V
ALUE
SHIFTED
A
W
A
Y
FR
OM
THE D
A
T
A
ADJUSTED IN STEP 1), ADJUST A
GAIN THE
TW
O SER
VICE D
A
T
A
WHICH HA
VE CHOSEN A
T
SCREEN ADJUST
SO
THA
T
T
O
OBT
AIN
THE SIMILAR AXIS AS ABO
VE.
*W
ARNING:
DO NO
T DISTURB
THE MINI STEP GUN D
A
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 (11,600
°K + 1 MPCD)
BLACK
US14
WHITE