Panasonic TC-21PM50A Manual page 12

4. Adjust Red and Blue with Green line at centre of the screen by
rotating (RB)-G static convergence magnetic rings.
5. Lock convergence magnets with silicone sealer.
6. Remove the DY wedges and slightly tilt the Deflection Yoke
vertically and horizontally to obtain the good overall convergence.
7. Fix the Deflection Yoke by reinserting the DY wedges. Refer to
Fig. 10.
8. If purity error is found, repeat "Colour Purity" adjustment.
Fig. 9
Fig. 10
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