Panasonic PT-43LCX64 Service Manual page 72

a. Mechanical Picture Position Adjustment (Tilt)
1) Loosen the 4 Screws on the Projection Unit.
Projection Lens
Screw
Screw
Twist
<Front View>
2) Adjust the Projection Lens by twisting so that the long
line "g" and the long line "h" are within 4 dots. (The long
line "g" and the long line "h" will be almost aligned
horizontally.)
O P T H P O S I
O P T V P O S I
"G" <Focus Screen>
long line "g"
"G"
Note:
If the Projection Lens is twisted left, the Focus Screen twists
left.
If the Projection Lens is twisted right, the Focus Screen
twists right.
3) Tighten the 4 Screws while fixing the Projection Lens.
Twist
Fig. M1-5
0 7
0 3
"H"
long line "h"
within 4 dots
b. Focus Adjustment
1) Confirm that each of the pixels in the nine portions is
clearly visible.
Screw
O P T
O P T
Screw
2) If not, loosen the Knob on the Projection Lens until the
Knob can be moved.
(PT-60LCX64)
CAUTION:
Do not turn the screw
and nut.
3) Adjust the Knob by moving up or down so that each of
the pixels in the nine portions is clearly visible to obtain
"H"
the best focus.
4) Tighten the Knob.
Note:
Focus Adjustment is not normally necessary. Perform this
adjustment only if necessary.
H P O S I
V P O S I
<Focus Screen>
Up
Down
<Front View>
Fig. M1-6
0 7
0 3
Knob
Tighten
Loosen