Dynamic Focus Presets - Mitsubishi WS-48315 Service Manual

[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-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
Input Terminal Video Input
Downloaded from www.Manualslib.com
MODELS: WS-48315 / WS-55315 / WS-65315
Purpose:
Symptom:
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.
7. Press "ENTER" to save data.
8. Exit the Conv. Mode.
Item Abbr.
Purpose:
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.
manuals search engine
To improve edge focus.
Poor focus at the edges of the screen.
DF
WS-48315 / WS-55315
SD Data
1 DFH -220
2 DFV -100
CONV MISC
(MENU-0-3-5-9-6)
Item Abbr.
9 DPHS
10 DOFS
To set the Lens position for optimum focus.
Poor focus
Page 34
MENU-0-3-5-9-5
WS-65315
HD Data SD Data
-220 -280
-100 -110
SD & HD
1
34
HD Data
-250
-95