Panasonic PT52LCX66 - MULTI MEDIA DISPLAY, Service Manual

Page: 48 / 83

b. Mechanical Picture Position Adjustment (Tilt)
1) Loosen the 4 Screws on the Projection Unit.
Screw
Twist Twist
Screw
Screw
Screw
<Front View>
Fig. M1-5
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.)
<Focus Screen> "G" "H"
within 4 dots
long line "g"
long line "h"
"G"
"H"
O P T H P O S I F 6
O P T V P O S I 0 2
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.
a. Focus Adjustment
1) Confirm that each of the pixels in the nine portions are
clearly visible.
2) If not, loosen the Knob on the Projection Lens until the
Knob can be moved.
Up
Down
<Front View>
Knob
Tighten
Loosen
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.
<Focus Screen>
O P T H P O S I F 6
O P T V P O S I 0 2
PT-52LCX66 / PT-56LCX66 / PT-61LCX66 / PT-52LCX16 / PT-56LCX16
48