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3-14. LCD Block and LCD Panel
1. Remove three screws (1) and remove the LCD block (2).
2. Remove three screws (3) and remove the LCD panel (4).
Screws (3)
LCD panel (4)
LCD panel (4)
LCD block (2)
Fig. 1-3-14
3-14-1. Panel Replacement and Adjustment
Procedures
< Replacement procedures >
1. Remove the prism block from the optical engine.
2. Remove the panel and the panel holder from the
prism block. (Refer to Fig. 1-3-15.)
Prism block
Fig. 1-3-15 Prism block exploded views
Screws (3)
LCD
panel (4)
Screws (3)
Screws (1)
Panel holder
Panel
3. Mount a holder support for the service holder at the
location of the panel holder removed. (Use screws
removed in step 2.) (Refer to Fig. 1-3-16 for the
following steps.)
4. Mount a new panel on the XY shifting plate with the
Z rotation plate placed between them. (Use L upper
and lower adjustment screws.) At this time, fix them so
that two holes on the panel lower side are matched
with the holes on the Z rotation plate.
5. Mount the Z rotation plate on the holder support.
(Use S adjustment screws.) Tighten the S adjustment
screws lightly.
Holder support
Adjusting screws S (x2)
Z rotation plate
L lower adjusting screw (x1)
Fig. 1-3-16 Mounting view of a holder for service
< Panel adjustment procedures >
– carried out with a cross hatch signal (RGB input)
received.
(1) Panel focus adjustment
– carried out with a single color (panel color replaced)
status.
1. Shift the Z rotation plate by holding its handles
located on the upper sides with fingers or a long-nose
pliers, etc. and adjust to obtain the best focus at the
whole screen. At this time, adjust the screen center
focus by shifting the Z rotation plate entirely back
and forth, the left/right screen focus balance by
shifting the rotation plate to left/right rotation
directions and the upper/lower screen focus balance
by shifting it to upper/lower rotation directions.
1-7
XY shifting plate
L upper adjusting
screw (x2)
Panel
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