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Appendix A: G2 adjustment
A-1
5976065 BARCOCINE 8 10022000
A
G2 ADJUSTMENT
G2 Adjustment
How to start up the G2 adjustment ?
1
Enter the adjustment mode by pressing ADJUST (menu 1).
2
Highlight SERVICE.
3
Press ENTER to start up the service mode (menu 2).
4
Highlight G2 Adjustment
5
Press ENTER.
A safety notice will be displayed to warn the operator (menu 3).
If you are qualified, press ENTER to continue with the G2 adjustment, otherwise press EXIT to return to the service moenu.
If ENTER is pressed, the G2 menu will be displayed (menu 4).
SAFETY
NOTICE
RISK OF ELECTRICAL SHOCK
IF QUALIFIED, PRESS
<ENTER> TO CONTINUE, OR
IF NOT, <EXIT> TO RETURN.
G2 ADJUSTMENT SHOULD BE
PERFORMED BY BARCO
PERSONNEL, OR BARCO
menu 2
menu 3
Select with
é
or
ê
then <ENTER>
<EXIT> to return.
SERVICE MODE
DYNAMIC ASTIGMATISM
G2 ADJUSTMENT
GAMMA CORRECTIONS
CRT RUN IN CYCLE
PROJECTOR WARM UP
CRT DRIVE MODE
MEMORY BANKS
MORE ...
ADJUSTMENT MODE
Select with
é
or
ê
then <ENTER>
<EXIT> to return.
Select a path from
below :
IRIS
GUIDED
RANDOM ACCESS
INSTALLATION
SERVICE
source 1
menu 1
G2 ADJUSTMENT
Use thepotentiometers
on the G2-ADJ module
to set the screen grid
voltage for Red,
Green and Blue.
Adjust until the LED
on the corresponding
output amplifier is
turned off
<EXIT> to return
Retaining screws
Green LEDs
menu 4
How to adjust the G2 ?
1
Remove the top cover from the projector (see Installation Guidelines).
2
Open the front metal protection cover by turning out the 3 retaining screws on both sides (Photo 1).
A green LED is mounted on each of CRT sockets (see Photo 2).
Photo 1
Photo 2