APPENDIX B : G2 ADJUSTMENT

continue with the G2 adjustment, oth- erwise press EXIT to return to the service menu.

If ENTER is pressed, the G2 menu will be displayed.

SAFETY

NOTICE

RISK OF ELECTRICAL SHOCK

G2 ADJUSTMENT SHOULD

BE PERFORMED BY BARCO

PERSONNEL OR BARCO

AUTHORIZED DEALERS

IF QUALIFIED, PRESS

<ENTER> TO CONTINUE, OR

IF NOT, <EXIT> TO RETURN

Open the top cover to reach the G2 controls and adjust these G2 controls for red, blue and green separately.

G2 ADJUSTMENT

Use the

potentiometers

on the G2-Adj module

toset the screen grid

voltage for Red,

Green and Blue.

Adjust

until the LED

on the

corresponding

output amplifier is turned off

<EXIT> to return.

APPENDIX B : G2 ADJUSTMENT

The controller automatically increases brightness and contrast until the raster behind the displayed text becomes visible.

To gain access to the G2 adjustments, open the projector frame. Follow the procedure as described in chapter 3 'Projector setup'.

A green LED for each color is mounted on the driver board, below the CRT's. When selecting the G2 adjustment menu, these green LEDs must be out. If not, follow the procedure to adjust the G2 :

-Loosen the retaining screws of the upper electronic chassis and pivot it to the lenses.

B-2

 

5975069ABARCOVISION708 200498

 

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Barco R9002328, R9002327 installation manual Appendix B G2 Adjustment