Sony VPL-F401H, Service Manual

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2-2 (E)
VPL-FH31/F401H
2-2. Polarizer Adjustment
m
.
Perform this adjustment in a dark place.
.
Be sure to adjust the in-polarizer assembly in the order of (G), (R) and (B).
1. Remove the following parts in the order below.
Lens cover assembly (Refer to Section 1-3-1.) → Rear panel assembly (Refer to Section 1-3-2.) →
Top panel assembly (Refer to Section 1-3-3.) → C board/ shield (CB) (Refer to Section 1-3-5.)
2. Attach the rear panel assembly. (Refer to Section 1-3-2.)
3. Connect the extension board, H board, NF board and extension cables.
4. Connect the power cord.
5. Turn on the power and project the image on the screen.
n
Perform this without the input signal.
6. Set the status to “OFF” and the background to “Black” in the menu.
7. Loosen the screw of the in-polarizer (G) assembly.
8. Move the polarization panel holder from side to side, and then tighten the screw at the position where
the image on the screen becomes the darkest.
9. Loosen the screw of the in-polarizer (R) assembly, then perform step 8.
10. Loosen the screw of the in-polarizer (B) assembly, then perform step 8.
11. Set the status to “ON” and the background to “Blue” in the menu.
12. Turn off the power.
13. Assemble the unit in the reverse order of steps 1 to 3.
NF board
H board
In-polarizer (B)
assembly
Screw (B2
x
5)
In-polarizer (G) assembly
Screw (B2
x
5)
In-polarizer (R) assembly
Screw (B2
x
5)