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MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819
[Focus Circuit]
13. Dynamic Focus Preset
Measuring
-----
Instrument
Test Point
-----
Ext. Trigger
------
Measuring
-----
Range
Input Signal
Monoscope
Input Terminal
Video Input
CIRCUIT ADJUST MODE
Activate ........ MENU-0-1-5-7
Function .................AUDIO
Item No. .................VIDEO
Adjust Data ...........ADJUST
Save Data .... .........ENTER
Exit ..............MENU (twice)
[CRT Circuit]
14. Electrostatic Focus &
(Alignment Magnet)
Measuring
-----
Instrument
-----
Test Point
------
Ext. Trigger
Measuring
------
Range
Input Signal
Monscope & Crosshatch
Input Terminal
Video Input
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-0-1-5-9 then "AUDIO")
ITEM
0
1
CONV MISC (MENU-0-1-5-9-6)
ITEM
0
1
To set electrostatic focus to the optimum point.
Purpose
Poor focus.
Symptom:
Note: This adjustment must be performed after the Sub Contrast adjustment.
Alignment Magnet Adjustment (WS-55819 and WS-65819 Only)
This adjustment must be performed before Static Focus Adjustment
1. Supply a Crosshatch with Center Dot signal to a Video Input.
2. Select a Green raster using the table below.
3. Roughly adjust Green Focus VR.
4. Rotate Green Focus VR CCW so the center dot is about 10mm diameter.
5. Adjust the Green 4 Pole Magnet for the roundest center dot.
6. Set the Green Focus VR for optimum focus.
7. Repeat the procedure with a Red raster and adjust the Red 4 Pole Magnet.
8. Use silicon to lock the magnets in place.
Static Focus Adjustment (All Models)
1. Supply a Monoscope signal to a Video Input
2. Activate A/V Reset
3. Select Red, Green or Blue rasters using the table below.
3. Set the Red, Green and Blue Focus VRs for optimum focus at the top center of
the picture..
Ra ste r Color Selection
Color Raster
Red
Green
Blue
Page 37
ABBR.
DATA
DFH
235
DFV
100
ABBR.
DATA
FPHS
200
DPHS
245
Activation Code
MENU-0-1-5-9-1
MENU-0-1-5-9-2
MENU-0-1-5-9-3
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