Toshiba 65H80, Service Manual

Page: 7 / 68

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GENERAL ADJUSTMENTS
SPECIFIC INFORMATIONS
R, G, B FOCUS ADJUSTMENT
1. Before adjusting the R, G, B FOCUS, remove the 4 screws
of Lens Assembly which is fixed on the CRT Assembly.
(See page 4.)
Then turn around the Lens Assembly by 180˚ to adjust
the fastening screw (Fig. a) and fasten the 4 screws to
secure Lens Assembly.
2. Select the adjustment mode. (See page 9.)
3. Press “7” button to display the built-in cross-hatch.
4. Press “0” and “RTN” buttons to make the picture a single
Red color.
100 button ............... to erase Red color
0 button ............... to erase Green color
RTN buttonto erase Blue color5.
5. Loosen the fasten screw and adjust Red lense focus to
best focusing point of picture center. Then fasten the screw.
(See Fig. a.)
Fig. a
6. Adjust FOCUS VR “R” of FOCUS PACK to find best fo-
cusing point of picture center.
7. Repeat steps 3 to 5 for Green and Blue colors.
TILT ADJUSTMENT
Rotate R, G, B deflection yoke so that picture becomes hori-
zon, then fasten screw.
CENTERING ADJUSTMENT
1. Stretch a thread between two center of screen edge (top
and bottom, left and right).
2. Select the adjustment mode.
3. Press TV/VIDEO button on the Remote Control to display
the white cross-bar.
4. Perform VCEN adjustment. (See page 12.)
5. Adjust G centering magnet so that the cross-bar pattern
center comes to screen center.
6. Perform HEIGHT adjustment . (See page 13.)
7. Perform VERT. LINEARITY adjustment.
8. Perform WIDTH adjustment. (See page 12.)
9. Check whole quality of green line.
10. Adjust R, B centering magnet so that the cross-bar pat-
tern center comes to screen center.