28
XG-P20XU
XG-P20XE
XG-P20XD
ELECTRICAL ADJUSTMENT
Hook up a signal generator, or a DOSV or Mac personal computer to the projector in order to feed the
signals specified in the Adjusting conditions.
No.
Adjusting point
Adjusting conditions
Adjusting procedure
1
EEPROM
initialization
1. Turn on the power (make
sure the lamp lights up) and
warm up the unit for 15 min-
utes.
»
Make the following settings:
Press S2601 to call up the process mode and
execute S2 and S4 in the SSS menu. Now the
system, with the PC board not included, is initial-
ized. Do not execute S1 because otherwise the
PC board will be initialized.
To adjust the PC board, follow the instruction in
"Adjusting the PC Interface". (See page 34)
2
R drive
1. Make the following choice.
Group : A/D
2. Feed the 100% red-only sig-
nal. Make the following
choice.
Group : A/D
Subject : R-D
»
Using the control switches or the remote controller
buttons, adjust the data so that the signal be-
comes bit-less (noise).
3
B drive
1. Feed the 100% blue-only
signal. Make the following
choice.
Group : A/D
Subject : B-D
»
Using the control switches or the remote controller
buttons, adjust the data so that the signal be-
comes bit-less (noise).
4
G drive
1. Feed the 100% green-only
signal. Make the following
choice.
Group : A/D
Subject : G-D
»
Using the control switches or the remote controller
buttons, adjust the data so that the signal be-
comes bit-less (noise).
5
RGB 1 system
black level
signal amplitude
(odd-numbered)
»
Choose the subject G1-GAIN and adjust the sig-
nal amplitude to 3.9
±
0.05 Vp-p using the control
switches or the remote controller buttons.
»
Next, choose the subject G-BLK and adjust the
white peak level to 2.0Vp-p
±
0.1V.
1. Make the following choice:
Group : OUTPUT 1
Subject : G1-BLK
G1-GAIN
For green, choose the sub-
jects R1-BLK and R1-
GAIN.
For blue, choose the sub-
jects B1-BLK and B1-GAIN.
2. Connect the oscilloscope to
TP1101 for red.
TP1201 for green
TP1301 for blue
3.9Vp-p
2.0Vp-p
»
Make the same adjustments for green and blue.
