Philips 27G7 Service Manual page 38

11. Slowly spread, and if necessary, rotate the 2-Y pole purity rings so that the red and blue lines are at least
parallel and preferably coincide at the 6:00 and 12:00 positions (refer to Figure 2).
ZERO
CORRECTION
POSITION
2Y POLE
2X POLE
4 POLE
6 POLE
CONVERGENCE & PURITY ASSEMBLY
Figure 1 - Convergence and Purity Assembly
GAP
GRIDS
(G2 & G3)