Condenser Lens Adjustment - Canon LV-7545U Service Manual

Part 3: Adjustment

3.2 Condenser Lens Adjustment

1. Turn on lamp with the FPC cable of the LCD
panel removed.
2. Adjust the adjustment base of the condenser
lens ass'y to make color uniformity in white.
1) If the color shade appears on the left or
right of the screen, loosen 2 screws A with
the hex driver and adjust slot B to make
color uniformity in white by turning a slot
screwdriver. (See Fig. 3-17.)
2) If the color shade appears on the top or
bottom of the screen, loosen 1 screw C
with the hex driver and adjust slot D to
make color uniformity in white by turning
a slot screwdriver. (See Fig. 3-18.)
3. Tighten screws A and screw C to fix the
condenser lens unit.
CAUTION
After completion of this
adjustment, the "Relay Lens
Adjustment" should be
carried out.
A
Rotation of slot B and screen movement
Rotation of slot D and screen movement
3-20
a b
White
Slot B
a
A
b
Fig. 3-17
x
White
y
C
Slot D
Fig. 3-18
x
y