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[Focus Circuit]
9. Dynamic Focus Preset
Measuring
-----
Instrument
Test Point
-----
Ext. Trigger
------
Measuring
-----
Range
Input Signal
Monoscope
Input Terminal
Video Input
CONVERGENCE MODE
Activate ........MENU-0-3-5-9
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
Input Signal
Monoscope & Crosshatch
Input Terminal
Video Input
MODEL: WT-42313 / WT-42413
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-0-3-5-9-5)
Item
Abbr.
0
DFH
1
DFV
CONV MISC (MENU-0-3-5-9-6)
Item
Abbr.
9
DPHS
10
DOFS
To set the Lens position for optimum focus.
Purpose
Symptom:
Poor focus
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. Supply a crosshatch signal
5. Confirm that the width at the top and
bottom of the center vertical line are
the same. If not, check mechanical
centering adjustment..
6. Repeat Steps 2 and 5 for the Red
and Blue monochrome pictures.
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SD Data HD Data
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SD Data HD Data
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