Appendix b : g2 adjustment – Barco R9002327 User Manual
Page 54
APPENDIX B : G2 ADJUSTMENT
APPENDIX B : G2 ADJUSTMENT
B-2
APPENDIX
B
: G2
ADJUSTMENT
B-2
APPENDIX
B
: G2
ADJUSTMENT
5975069A BARCOVISION 708 A 200498
5975069A BARCOVISION 708 200498
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.
The controller automatically increases brightness and contrast until the raster behind
the displayed text becomes visible.
Open the top cover to reach the G2
controls and adjust these G2 controls
for red, blue and green separately.
IF QUALIFIED, PRESS
IF NOT,
SAFETY
NOTICE
RISK OF ELECTRICAL SHOCK
G2 ADJUSTMENT SHOULD
BE PERFORMED BY BARCO
PERSONNEL OR BARCO
AUTHORIZED DEALERS
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
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.
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.
The controller automatically increases brightness and contrast until the raster behind
the displayed text becomes visible.
Open the top cover to reach the G2
controls and adjust these G2 controls
for red, blue and green separately.
IF QUALIFIED, PRESS
IF NOT,
SAFETY
NOTICE
RISK OF ELECTRICAL SHOCK
G2 ADJUSTMENT SHOULD
BE PERFORMED BY BARCO
PERSONNEL OR BARCO
AUTHORIZED DEALERS
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
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.