Canon D78-5311, Service Manual

Page: 62 / 122

3.4 Relay lens-Out Adjustment
1. Turn the projector on by a state of without
FPC cables.
2. Project all of lights on the screen.
3. Adjust the adjustment base of relay lens
assy to make color uniformity in white.
1) If the shading appears on the left or right
of the screen as shown in
Fig. 3-14
,
loosen 1 screw
A
with the 2.0mm hex
driver, and adjust the slot
B
to make
color uniformity in white by using a slot
screwdriver.
2) If the shading appears on the top or
bottom of the screen as shown in
Fig. 3-15
, loosen 1 screw
C
with the
2.0mm hex driver, and adjust the slot
D
to make color uniformity in white by
using a slot screwdriver.
4. Tighten the screws
A
and
C
to fix the relay
lens unit.
Part 3: Adjustment
3-19
Fig. 3-14
Fig. 3-15
A
Slot B
a
b
b a
White
Slot D
y
x
C
y
x
White
Moving of slot B
Moving of slot D