Toshiba 57H84 - 57" Rear Projection TV, Service Manual

Page: 14 / 47

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ADJUSTMENT METHOD 3. Red Adjustment
1)
Receiv
e Red single color b
y
shielding jig.
2)
Receiv
e the Dot Cross patter
n
.
3)
Adjust Red electr
ical f
ocus
.
Adjust Red electr
ical f
ocus
VR on f
ocus pac
k (Z410) f
or best center f
ocus
.
4)
Adjust Red lens f
ocus
.
Receiv
e the Dot Cross patter
n.
Adjust Red lens f
or best center f
ocus
.
5)
Repeat (3)~(4),and adjust best f
ocus point.
4. Blue Adjustment
1)
Receiv
e Blue single color b
y
shielding jig.
2)
Receiv
e the Dot Cross patter
n
.
3)
Adjust Blue electr
ical f
ocus
.
Adjust Blue electr
ical f
ocus
VR on f
ocus pac
k (Z410) f
or best center f
ocus.
(The Br
ightness is minim
um point of Blue
.)
4)
Adjust Blue lens f
ocus
.
Receiv
e the Dot Cross patter
n
. Adjust the Blue lens f
o
r best center f
ocus
.
After easy lens adjustment, tur
n to right side lens f
ocus scre
w
,
and so dot-cross has flare
.
Ne
xt tur
n left f
ocus scre
w
, so flare disappears in Dot-Cross and Dot-Cross become b
lur
.
This point is b
lue lens f
ocus adjustment target.
(flare disappear and become b
lur)
ITEM F
ocus Adjustment
FOCUS ADJUSTMENT (2/2)