Panasonic PT52LCX66 - MULTI MEDIA DISPLAY Service Manual page 48

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