Confidential
4-11
HD20/HD200X/HD2200/HD20LV/HD21/HD23
Full white pattern
4-10 Calculate W-factory
After changing main board or blower, please do
“Calculate W-factory” by steps below:
(1) Plug power cord in projector.
(2) Hold “Left” button, press “Power” button. Continue
holding “Left” button until both Temp LED and Lamp LED
light on red. Then
r
e
le
ase “Left” button, the projector will
power on.
4. Uniformity
Procedure
- Full white pattern
- Use CL100 to measure brightness values of
P1~P9 (see image: full white).
- Follow the Uniformity formula to calculate
average values.
☼ Uniformity Formula
JBMA Uniformity = Avg. (P1, P3, P7, P9)
P5
Criteria • 70%
X100%