Panasonic PT-56LCX70 Service Manual page 55

a. Focus Adjustment
1) Confirm that each of the pixels in the nine portions are
clearly visible.
O P T H P O S
<MMD-CHK 2/8>
2) If not, loosen the Knob on the Projection Lens until the
Knob can be moved.
Tighten
Loosen
<Front View>
Fig. M1-6
3) Adjust the Knob by moving up or down so that each of
the pixels in the nine portions is clearly visible to obtain
the best focus.
4) Tighten the Knob.
0 0 2 4
Knob
Up
Down
PT-56LCX70 / PT-61LCX70 / PT-50LCX7 / PT-56LCX7 / PT-61LCX7
b. Mechanical Picture Position Adjustment (Tilt)
1) Loosen the 4 Screws on the Projection Unit.
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
"G"
<MMD-CHK 2/8>
long line "g"
within 4 dots
"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.
55
Screw
Screw
Twist
Fig. M1-5
0 0 2 4
"H"
long line "h"
"H"