Panasonic PT-40LC12 Service Manual page 38

Hex Nut "d1"
10 mm Hex wrench
Fig. 4-7-4
9) Confirm that the Right and Left marks are centered.
Hex Nut "d2"
Wrench
2. Focus Adjustment
1) Loosen the 2 Screws on the Projection Lens until the
Projection Lens can be moved.
2) Adjust the Projection Lens by rotating the Projection
Lens so that each pixels in the seven portions are
clearly visible to obtain the best focus.
Screw
F O C U S
3) After adjusting, tighten the 2 Screws on the Projection
Lens.
Screw
Projection Lens
Fig. 4-8-1
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Fig. 4-8-2