AV-32230
AV-32260
ADJUSTMENTS OF PURITY AND CONVERGENCE
Note: The final adjustment of CONVERGENCE must be done after the
FOCUS adjustment. (CONVERGENCE is changed by FOCUS
adjustment.)
When makes difference by FOCUS adjustment, should beWEDGE
DEFLECTION
reconfirming PURITY adjustment. YOKE
PURITY ADJUSTMENTP
1. Demagnetize CRT with the demagnetizer.CRT
4 6
2. Loosen the retainer screw of the deflection yoke.
3. Remove the wedges.P / C
MAGNETS
4. Input a green raster signal from the signal generator, and turn the
screen to green raster.
Y P/C MAGNETS
5. Move the deflection yoke backward.
P : PURITY MAGNET
4 : 4 POLES (convergence magnets)
6. Bring the long lug of the purity magnets on the short lug and position6 : 6 POLES (convergence magnets)
them horizontally. (Fig.2)
Fig. 1
7. Adjust the gap between two lugs so that the GREEN RASTER will
come into the center of the screen. (Fig.3)
8. Move the deflection yoke forward, and fix the position of the deflec-
tion yoke so that the whole screen will become green.
PURITY MAGNETS
9. Insert the wedge to the top side of the deflection yoke so that it will
not move.
Long lug
10. Input a crosshatch signal.
11. Verify that the screen is horizontal.
Short lug
12. Input red and blue raster signals, and make sure that purity is prop-Bring the long lug over the short lug
erly adjusted.and position them horizontally.
Fig. 2
(FRONT VIEW)GREEN RASTER
CENTER
Fig. 3
No. 5180231 |
ACEC
