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DP-4X WHITE BALANCE ADJUSTMENT
Adjustment Conditions:
•
Cut Off and Blue Defocus
must be complete.
•
High brightness white balance
•
Low brightness white balance
Controls used in this
adjustment
•
Screen adjustment VRs on Fo-
cus Block
•
Drive adjustment performed
2
using I
C Bus Alignment
within Service Menu.
Preparation for adjustment
•
Start adjustment 20 minutes or
more after the power is turned
on.
•
Turn the brightness and black
level OSD to minimum by re-
mote control.
•
Receive a tuner signal, (any
channel, B/W would be best).
•
Set the Green and Blue drive
adjustment within I
Menu to their Data Centers
(3F).
•
R, G, and B Cutoff should be
set to (7F).
•
Set Color Temperature to
HIGH on Customer's Menu.
Adjustment procedure
Sub Brightness:
1) Input a gray scale signal into
any Video input and select
that input using the VID but-
tons on the remote or front
control panel.
2) Turn the Brightness and
Contrast OSD all the way up.
3) Enter the Service Menu
again.
4) Make the whites as white as
possible using the Red DRV
and Green DRV adjustment
within I
(10800K). X=0.277
Y=0.284.
5) Set the Brightness and Con-
2
C Service
trast to minimum.
6) Adjust the low brightness
areas to black and white, us-
ing Red Cut Off, Blue Cut
Screen VRs
Focus VRs
Projection Front View
RED CRT
2
C Service Menu .
Screen VR
R
G
Focus VR
R
G
FOCUS PACK
GREEN CRT
BLUE CRT
Off and Green Cut Off ad-
2
justment within I
C Service
Menu (10800 K)
7) Check the high brightness
whites again. If not OK, re-
peat steps 6 through 9.
8) Press the MENU key on
remote to Exit Service
Menu.
Remember: After adjusting the
Screen controls only adjust us-
ing the Cut Off adjustments
within the Service Menu.
Also, do not use the Focus
Block adjustments, use I
R, G and B Cutoff adjustments.
B
B
PAGE 08-33
2
C
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