Sharp 21FL91, Service Manual

Page: 20 / 46

20
20-1
20-2
21FL91
ADJUSTMENT ITEM ADJUSTMENT POSITION CONTROL PRE-ADJUST REQUIREMENT CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PROCEDURE
SUB-PICTURE
V01
STEP RANGE
0-127
I 2
C BUS CONTROL
OPTION SET
UP
, BUS SET
UP
, SCREEN, WHITE BALANCE, SUB-BRIGHTNESS
WINDOW P
A
TTERN
220V CR
T
SCREEN DISPLA
Y.
1)
LET
THE GUN POINT
A
T
WHITE POSITION (AS
A
T
T
ACH DRA
WING),
ADJUST
V01
BUS DA
T
A
UNTIL
BRIGHTNESS
Y=
150 cd/m2.
N
O
T
E
:
ALLO
W
ABLE D
A
T
A
FOR
V01 IS >= 90,
EVEN
Y CAN’T MA
TCH
THE SPEC
[V
OL
T
A
GER CONFIRMA
TION]
BRIGHTNESS
Y=150 cd/m2
US14
WHITE
ADJUSTMENT ITEM ADJUSTMENT POSITION CONTROL PRE-ADJUST REQUIREMENT CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PROCEDURE
1)
GET
IN
Y
-MUTE FUNCTION BY
R/C.
2)
ADJUST
THE
V02
BUS DA
T
A
T
O
GET
A
W
A
VEFORM
AS BELOW
.
3)
DISABLE THE
Y
-MUTE
**PLS
T
AKE NOTE
THA
T
SER
VICE MODE DA
T
A
F53 NEED
T
O
SET
+8
SUB-TINT
V02
STEP RANGE
0-127
I
2
C CONTROL
OPTION SET
UP
, BUS SET
UP
, VCO
ADJ, RF-AGC
US 10 CH HALF COLOR BAR P
A
TTERN
220V B-AMP
TR BASE (TP853)
CONFIRRM WITH OSCILLOSCOPE
[CONFIRMA
TION]
B-AMP BASE (TP853) MUST BE IN STEPPING LEVEL