Sharp Linytron C-1004G Service Manual page 8

DYNAMIC CONVERGENCE ADJUSTMENT
Dynamic convergence (convergence of the three colour
fields at the edges of the CRT screen) is accomplished by
proper insertion and positioning of three rubber wedges
between the edge of the deflection yoke and the funnel of
the CRT.
This is accomplished in the following manner.
1. Switch receiver ON and allow it to warm up for 15
minutes.
2. Apply crosshatch pattern from Dot/Bar Generator to
receiver. Observe spacing between lines around edges of
CRT screen.
3. Tilt the deflection yoke up and down, and insert tilt
adjustment wedges @) and @) between the deflection
yoke and the CRT until the mis-convergence illustrated
in Fig. 7 @ has been corrected.
4. Tilt the deflection yoke right and left, and insert tilt
adjustment wedge (3) between the deflection yoke and
the CRT until the mis-convergence illustrated in Fig. 7
® has been corrected.
5. Alternately change spacing between, and depth of in-
sertion of, the three wedges until proper dynamic con-
vergence is obtained.
6. Use a strong adhesive tape to firmly secure each of the
three rubber wedges to the funnel of the CRT.
7. Check purity and readjust, if necessary.
DEFLECTION YOKE REAR VIEW
Figure 7. Dynamic Convergence Adjustment