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MODELS: VS-45609 / VS-50609 / VS-55609 / VS-60609 / VS-60719 / VS-70709
Page 30
Purpose:
Measuring
Instrument
Test Point
Measuring
Range
Input Signal
Ext. Trigger
Input Terminal
Symptom:
Purpose:
Measuring
Instrument
Test Point
Measuring
Range
Input Signal
Ext. Trigger
Input Terminal
Symptom:
[Focus]
5. Electrostatic Focus
To set focus to the optimum point.
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RQ Connector
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Monoscope/Crosshatch
Video Input
Note:
These adjustments must be performed after Sub Contrast Adjustment.
General
1. Reset the AV Functions
2. Red, green or blue rasters can be activated by using the Convergence Mode
(Table 1).
Electrostatic Focus
1. Supply a Monoscope signal to the Video Input. (Do Not use a Crosshatch.)
2. Activate a red raster.
3. Adjust the Red VR-FOCUS for optimum focus.
4. Repeat steps 2 and 3 for green and blue rasters.
Focus Verification
1. Supply a Crosshatch signal to the Video Input.
2. Verify good focus on the Crosshatch
3. If necessary, readjust focus using the Monoscope pattern.
CONVERGENCE MODE
COLOR PRESS
RED 1
GREEN 2
BLUE 3
(MENU-0-1-5-9)
Blurred picture.
Note:
This adjustment must follow item 6 (Electrostatic Focus). Perform this
adjustment for RED, GREEN, and BLUE monochrome pictures.
1. Supply a VIDEO signal (Monoscope).
2. Cover the Red and Blue Lens (producing a green raster).
3. Adjust the Green Lens for best focus at the center of the Monoscope pattern.
Note:
Attach a white paper to the screen center. During adjustment,
observe the picture on the screen from inside for easier adjustment.
4. Repeat Steps 2 and 3 for the Red and Blue monochrome pictures.
5. Supply a crosshatch pattern and confirm the crosshatch lines at all four sides
are the same width.
6. If not, check the Centering and Static Convergence adjustments.
[Focus]
6. Lens Focus
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Monoscope
Video Input
To set the Lens position for optimum focus
Blurred picture.