Toshiba M-V19H01 Service Manual page 128

Alignment and Adjustments (Electrical)
6-2-8 Center Convergence Adjustment
1. Before attempting convergence adjustments,
the receiver should be powered on for at least
20 minutes.
2. Input a crosshatch pattern from a color bar
generator.
3. Adjust the Brightness and Contrast controls
for a well defined pattern.
4. Adjust the two tabs of the 4-pole magnets.
Change the angle between the tabs, and
superimpose red and blue vertical lines in the
center area of the picture screen.
6-8
5. Next, turn both tabs at the same time. Keep
6. Adjust the two tabs of 6-pole magnets.
7. Repeat adjustments 3, 4 and 5. Because the 4-
Fig 6-7 Center Convergence Adjustment
the angle constant, and superimpose red and
blue horizontal lines at the center of the
screen.
Superimpose the red/blue lines with the
green. Adjusting the angle affects the
horizontal lines.
pole and 6-pole magnets interact, the dot
movement is complex.