Service manual

21G-FX10L
5 – 8
HORIZONTAL ,VERTICAL,DEFLECTION
L
OOP ADJUSTMENT (2)
NO
ADJUSTMENT POINT
ADJUSTMENT CONDITION/PROCEDURE
W
A
VEFORM OR OTHERS
8
UPPER
C
ORNER
(1) Receive CrossHatch Pattern Signal (NTSC 60 Hz).
(I2C BUS CONTROL)
(2) Choose t
he service data
V37
(3) Adjust the 2nd upper
vertical line from the right end of the
crosshatch pattern
so that the upper line are straight.
(4)
M
ake sure both
left / right of 2nd vertical line at opti
mum point
9
LOWER CORNER (1) Receive CrossHatch Pattern Signal (NTSC 60 Hz).
(I2C BUS CONTROL) (2) Choose the service data V39
(3) Adjust the 2nd lower vert
ical line from the right end of the crosshatch pattern
so that the bottom line ar
estraight.
(4) Make sure both left / right of 2nd vertical line at opt
imum point
10 BOW-ADJ (1) Receive CrossHatch
Pattern Signal (NTSC 60 Hz).
(I2C BUS CONTROL)(2)Choose the service data V
43 BOW ADJ
(3) Adjust the 2nd vertical line from the end of the crosshatch pattern until line is straight.
11
ANGLE ADJ (1) Recei
ve CrossHatch Pattern Signal (NTSC 60 Hz).
(I2C BUS CONT
ROL) (2) Choose the service data V41
(3) Adjust the 2nd vertical line from the end of the crosshatch pattern line is straight
(4) Make sure both left / right of 2nd vertical line at optimum point
12 TRAPEZIUM (1) R
eceive CrossHatch Pattern Signal (NTSC 60 Hz).
(I2C BUS CONTROL) (2) Choose the service data
V33
(3)
Adjust the 2nd vertical line from therightendofthe
crosshatch pattern
so that the D1 (center area of the second vertical line -
edge of screen)
and D2 (top area of the second vertical line - edge of screen) are same.
(4) Make sure both
left / right of 2nd vertical
line at optimum point
13 FINAL INSPECTION OF (1) Receive CrossHatch Pattern Signal (NTSC 60
H
z).
ADJUSTMENT (2) Please make sure picture distortion (ove
rall picture
quality) must be
balance at optimum point
TOP / BOTTOM at LEFT / RIGHT corner.
A1 A2
(3) If NG, please RE-ADJUST follow step 7 to 13 or adjust at NG
position to get best picture quality A1 B1 B
2
C
1
C
2
D1
=
D2
D2
D1
D2
D1
A
1
B1
C
1
A2
D1
B2
D2
C2
~
~
~
~
~
~
O
VERA
L
LPICTURE
Q
U
ALITY MUST BE
BALANCE AT OPTIMUM POI
N
T(LEFT
&R
I
GHT )
H-BOW