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Before Colour Purity, Convergence and White Balance
adjustment are attempted,
V. Height, H. Centre and Focus adjustments must be completed.
Colour Purity
1. Set the Brightness and Contrast controls to their maximum
positions.
2. Operate the TV set for 60 minutes.
3. Fully degausse the picture tube by using an external degaussing
coil.
4. Apply a crosshatch pattern signal and adjust the static
convergence magnets to the approximately correct position.
5. Receive a black and white signal.
6. Set the control as follows: / Red................minimum /
Green.............minimum / Blue...............minimum / Press the
Shipping button on the remote control twice to select CRT
Adjustment Mode to select low light.
7. Loosen the clamp screw for the Deflection Yoke A in Fig. 10 and
move the Deflection Yoke as close to the purity magnet as
possible.
8. Adjust the purity magnetic rings so that a vertical green field is
obtained at the centre of the screen.
Fig. 6
9
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