6
Beam Landing check and adjustment
1. Equipment and adjustment procedure is the same as detailed in the service manual.
2. Condition:
(a) Timing mode is 1024x768@99Hz – select [Quantum Data>801 Formats>Cab 3 =
1024x768@99Hz]
(b) Pattern is Green Page – select [Quantum Data>801 Patterns>Green page].
Note: Prior to any alignment of the beam landing the UUT must be warm-up in a full
white page at 15fl.
Geometry check and adjustment
1. Equipment and adjustment procedure is the same as detailed in the service manual.
2. Condition:
(a) Timing mode is all the seven timing formats from Cab_1 to Cab_7.
(b) Pattern is Green Frame – select [Quantum Data>801 Patterns>Green Frame].
3. If the geometry data was downloaded from the factory file or the original video
board, check that the geometry for the 7 timing formats is within specifications. If not
then start the geometry adjustment.
4. Adjustment – start with prime mode at timing Cab_3 format. Note: Mode
independent parameters are in black in the Geometry page. Blue indicates mode
dependent parameters – these must be aligned and checked at the different timing
formats from Cab_1 to Cab_7. Do a “Read All” whenever there is a change of timing
format, so as to get the actual parameter settings.
5. When geometry is within specifications in the Cab_3 format, click “Save user” then
click “Do Prediction”. Prediction function is used to cut down the adjustment time for
the rest of the timing formats. It is OK to skip the prediction function and proceed to
the adjustment for next timing format, but just remember to click “Save user” before
changing the timing format.
6. Check the geometry from timing formats Cab_1 to Cab_7 and touch-up if necessary.
For formats that are within specifications click on “Save user” for each mode before
changing the timing format.
7. When all the 7 timing formats are checked to be within specifications, click on “Save
defaults” to save the settings into the factory EEPROM space.
White balance check and adjustment
1. Equipment: calibrated CA100.
2. Condition:
(a) Timing mode is 1024x768@99Hz – select [Quantum Data>801 Formats>Cab 3 =
1024x768@99Hz]
(b) Pattern for cutoff adjustment is GrayScale 16 – select [Quantum Data>801
Patterns>X-GrayScale 16].
(c) Pattern for white balance adjustment is VPT Page – select [Quantum Data>801
Patterns>VPT Page].
(d) Make sure the contrast is set at maximum 0x60.
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