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[Focus Circuit]
9. Dynamic Focus Preset
Measuring
-----
Instrument
Test Point
-----
Ext. Trigger
------
Measuring
-----
Range
Monoscope
Input Signal
Video Input
Input Terminal
CONVERGENCE MODE
Activate ........MENU-2-2-5-9
Misc. ........................."6"
Coarse........................"5"
Fine ..........................."4"
Color (R,G or B)......AUDIO
Item No..................VIDEO
Adjust/Move..........ADJUST
Cursor Toggle.........ENTER
Save & Exit.....MENU (twice)
[Video Circuit]
10. Lens Focus
Measuring
-----
Instrument
Test Point
------
Ext. Trigger
------
Measuring
-----
Range
Monoscope
Input Signal
Input Terminal
Video Input
MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65
Purpose:
To improve edge focus.
Symptom:
Poor focus at the edges of the screen.
1. Supply a Monoscope signal to a Video Input
2. Activate the Convergence Mode.
3. Select the DF Function under the Conv. Coarse Mode.
4. Set Items "0 DFH" and "1 DFV" to the data values given in the DF Table.
5. Press "6" to activate CONV-MISC
6. Set "0 FPHS" and "1 DPHS" to data values given in the CONV-MISC Table.
5. Exit the Conv. Mode.
DF
(MENU-2-2-5-9-5)
Item
0
1
CONV MISC
(MENU-2-2-5-9-6)
Item
9
10
Purpose
To set the Lens position for optimum focus.
Poor focus
Symptom:
Note: This adjustment must be done before 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.
Page 34
Abbr.
48/55/65/73 Inch
DFH
-220
DFV
-100
Abbr.
All Models
DPHS
1
DOFS
34
50/60 Inch
-220
-140
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