Panasonic PT52LCX66 Service Manual - Page 48

Mechanical Picture Position Adjustment Tilt, Focus Adjustment

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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. b. Mechanical Picture Position Adjustment (Tilt) 1) Loosen the 4 Screws on the Projection Unit. OPT OPT HPOSI VPOSI F6 02 Screw Screw Twist Twist Screw Screw 2) If not, loosen the Knob on the Projection Lens until the Knob can be moved. Tighten Knob Loosen 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.) OPT OPT HPOSI VPOSI F6 02 Up "G" "H" long line "g" long line "h" Down 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. "G" within 4 dots "H" 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

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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"
OPT HPOSI
F6
OPT VPOSI
02
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>
OPT HPOSI
F6
OPT VPOSI
02
PT-52LCX66 / PT-56LCX66 / PT-61LCX66 / PT-52LCX16 / PT-56LCX16
48