Hitachi 61HDX98B Manual page 72

A D J U S TING THE RED, GREEN A N D BLUE WHITE B A L A N C E A N D T R A C KING
for DP-85 Chassis
Note: When Vertical is collapsed, make adjustments quickly because the image can burn on the CRTs phosphors.
W hite balance adjustment
1) Screen adjustment
2) High brightness white bal-
ance
3) Low brightness white bal-
ance
Adjustment VRs:
Screen adjustment VRs on Focus
Block
Drive adjustment VRs on CRT P.
W.B.
Red Drive = R829R
Green Drive = R879G
Preparation for adjustment
1 ) S t a r t a d j u s t m e n t 2 0 m i n-
u t e s o r m o r e a f t e r t h e
p o w e r i s t u r n e d o n .
2 ) T u r n t h e b r i g h t n e s s a n d
b l a c k l e v e l O S D t o m i n i-
m u m b y r e m o t e c o n t r o l .
3 ) R e c e i v e a t u n e r s i g n a l , ( a n y
c h a n n e l , B / W w o u l d b e
b e s t ) .
4 ) S e t t h e d r i v e a d j u s t m e n t
V R s ( R e d R 8 2 9 R a n d G r e e n
R 8 7 9 G ) t o t h e i r m e c h a n i c a l
c e n t e r s .
Adjustment procedure
2
G o t o I C A D J . M o d e .
1)
power ON, press DTV/SAT
and Cursor Do w n b u t t o n s
at the same time. Service
Menu is displayed.)
2 ) C h o o s e S E R VI C E i t e m
W Y
75%
A7 A6
Q I
Number
M o d e .
(Select ON by Cur-
sor Right and the Vertical
will collapses).
3 ) G r a d u a l l y t u r n t h e s c r e e n
a d j u s t m e n t V R s ( r e d , g r e e n ,
b l u e ) c l o c k w i s e a n d s e t
t h e m w h e r e t h e r e d , g r e e n
a n d b l u e l i n e s a r e e q u a l a n d
j u s t b a r e l y v i s i b l e .
4 ) R e t u r n S e r v i c e i t e m o n I
Projection Front View
( W i t h
CY G MG R
A5 A4 A3 A2
B
D
W 100%
BLK
2
[1] o f I C A D J .
2
C
Screen VRs
Focus VRs
RED CRT GREEN CRT
BL
The background is set to black.
perform the adjustment without
A1
observing the boundary parts.
The background is set to
lighter black.
A D J t o O f f b y C u r s o r R i g h t .
[1].
Number
A d j u s t t h e S u b B r i g h t n e s s
[2] SUBBRT u s i n g
Number
I 2 C B u s a l i g n m e n t p r o c e-
d u r e s o o n l y t h e s l i g h t e s t
w h i t e p o r t i o n s o f t h e r a s t e r
c a n b e s e e n .
Continued on Next Page
5 ) Input a gray s c a l e s i g n a l
Screen VR
R G
Focus VR
R G
FOCUS PACK
BLUE CRT
B
B
P A G E 0 8 - 22