Silicon Graphics Reality Center, Руководство по установке

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Service Mode
11-9 R5976280 RC3300W 19072001
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 1
menu 2
G2 Adjustment
G2 Warning
'G2 adjustment should be performed by BARCO personnel, or BARCO authorized dealers'.
If you are qualified, press ENTER to continue. If not qualified, press EXIT to return to the Common settings menu. Further description
of the G2 adjustment is given in the Installation manual.
Item is password protected.
When selecting G2 adjustment (menu 1), a safety notice will be displayed on the screen (menu 2).
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 ...
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
menu 3
Starting up the G2 Adjustment mode.
When entering the G2 adjustment mode, menu 3 will be displayed.
Photo 2
How to adjust the G2 ?
1. Open the left service panel (see Mechanical Set Up).
2. Open the metal protection cover by turning out the retaining screws on both sides.
A green LED is mounted on each of CRT sockets.
When selecting the G2 adjustment menu, these green LEDs must be out. If not, follow the procedure below to adjust the G2:
3. Adjust the G2 potentiometers very slowly with a plastic tweaker until the LED of the corresponding amplifier just stops illuminating.
Repeat the adjustment for the other colors;
4. After the three G2 potentiometers have been correctly adjusted, close the metal covers and secure with the retaining screws.