Appendix B : G2 Adjustment - Barco R9002040 Instruction Manual

B
G2 ADJUSTMENT
Once the on-screen menu "G2 ADJUSTMENT" is displayed, proceed
as follows :
- Put the projector in service position 2 (see chapter 'AC power
Connection')
- A green LED is mounted on each driver unit. When selecting the
G2 adjustment menu, these green LEDs must be out. If not, follow
the next procedure to adjust the G2 :
- open the second metal cover by turning out the retaining screws on
both sides and pivot the cover to the front side of the projector;
- adjust the G2 potentiometers very slowly with a screwdriver until the
corresponding LED just stops illuminating. Repeat the adjustment
for the other colours;
- once the three G2 potentiometers have been correctly adjusted,
close both metal covers and secure with the retaining screws.
After finishing the adjustments :
Press the ENTER to continue with the "SERVICE" menu.
Press the EXIT to return to the "SERVICE" menu.
Press the ADJUST to return to Operational mode.
5975537 RETROGRAPHICS 808s 060197
Green LEDs 2
G2 ADJUSTMENT
Use the potentiometers
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
3
Red Green
Appendix B: G2 adjustment
891
Blue
B-1