Convergence Adjustment - Toshiba 50H81 Service Manual

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Adjust convergence from center to circumference in order.
KEY FUNCTION IN THE CONVERGENCE ADJUSTMENT:
Up :
Selet Green color:
Left :
Blinking of cursor ON/OFF:
Right:
Adjust mode ON/OFF:
Down:
Vertical stripe ON/OFF
Erase Green line:
Erase Red line:
Erase Blue line:
Note:
Adjusting procedure in replacing convergence board.
1. User convergence center check. Make sure the best
convergence setting is about the center of adjustable
range.
2. CENTERING ADJUSTMENT
3. PICTURE POSITION ADJUSTMENT
4. HIT, WID ADJUSTMENT

5. CONVERGENCE ADJUSTMENT

6. Execute TOUCH FOCUS following instructions displayed
on the screen after finishing CONVERGENCE ADJUST-
MENT.
7. If TOUCH FOCUS ERROR is displayed after finishing
TOUCH FOCUS, the method of CROSS-HATCH PAT-
TERN after CONVERGENCE adjustment is different from
what is exhibited on the right figure, or HARDWARE is out
of order.
CONVERGENCE ADJUSTMENT
1. Select the adjustment mode following the steps on page
2 button
3 button
4 button
5 button
6 button
7 button
8 button
9 button
0 button
2. Press "7" button to display the built-in cross-hatch pattern
100 button
ENT button
3. Adjustment around cursor can be done.
4. Press "3" button to select Green color to be adjusted.
5. Press "5" button to stop the blinking of cursor.
6. Press "2 (up)", "8 (down)", "4 (left)" or "6 (right)" to obtain
7. Press "5" button to make the cursor blinking.
8. Press "2", "8", "4", "6" buttons to move the cursor to other
9. Repeat steps 5 to 8.
10. Repeat steps 4 to 9 to adjust Red and Blue colors.
11. Press "7" button to memorize the adjusted states.
12. Press the TOUCH FOCUS button when "PLEASE PUSH
13. TOUCH FOCUS is executed.
14. It returns to the normal screen after displaying "TOUCH
– 13 –
9.
RCUT
40H
and press "9" button to display the vertical stripes.
Cursor
FULL
The pattern includes three colors (R, G, B).
The cursor should be blinking in Red.
This means that the Red color is adjustable.
the correct cross-hatch pattern as above.
If necessary, the specified color line can be erased from
the screen.
100 button ...................... to erase Red line
0 button ...................... to erase Green line
CH RTN button ...................... to erase Blue line
point to be adjusted.
Converge the selected color line into the Green line.
At this time, picture changes for about 1 second.
TOUCH FOCUS" is displayed on the screen.
FOCUS FINISHED".
X: I
Y: I
C: R
FULL

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