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Disassembly for Service (Continued)
Cabinet Front Removal
(Figure 11)
1. First remove the Speaker Grill and the center
cover, then remove the keyboard, then remove the
bottom back cover and then the top back cover.
2. At this point the front cabinet is only held by two
hex screws shown below, be careful not to push
the cabinet to front.
3. Remove (2) hex cabinet screws (See Figure 11)
Cabinet
Keyboard
Screw
Screws
Figure 11. Front Cabinet Removal
Screen Assembly
(Figure 12)
1. First remove the Front Cabinet (See Front Cabinet
Removal procedure)
2. Place Front cabinet face down on a soft surface.
3. Remove screen brackets from all sides and corner
brackets
Note: Notice upper, lower, left and right brackets
painted in black (permanent marker) on edge,
to avoid reflection on image.
Screen Brackets
Velcro
Dot
Rear View
Figure 12. Screen Assembly
Service Manual
the center
cover is held
Cabinet
Screw
by four screws
Velcro
Dot
Protective Screen
Lenticular Screen
Fresnel Screen
- 12 -
4. Note exact orientation of each screen. The
orientation and order of the screens is critical for
projecting pictures
assembly can be seen in Figur e20.
Main Chassis Block (Light-Box)
(Figure 13)
1. Remove the Speaker Grill (Figure 8)
2. Remove the cabinet back lower. (Figure 9)
3. The main chassis block is secured to the cabinet
by screws (2 at front, behind the decorative panel,
4 inside on the bottom of the optical frame).
4. Remove the horizontal barrier panel at the back of
the cabinet.
5. Unplug
connectors
connectors) and pull out the main chassis block.
Figure 13. Chassis Removal (Light-Box)
Note: Main Chassis block can be serviced
either in normal position or laying on its
back (Protect hookup terminal from
damage).
properly. Detailed
screen
(K1,
G1
and
speaker
Main Chassis Block
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