JVC AV20241SA
Service Manual

AV-20420 AV-20421

STATIC CONVERGENCE ADJUSTMENT (1) Input a crosshatch signal.

(2) Using 4-pole convergence magnets, overlap the red and blue lines in the center of the screen (Fig.1) and turn them to magenta (red/blue).

(FRONT VIEW)

(3) Using 6-pole convergence magnets, overlap the magenta (red/blue) and green lines in the center of the screen and turn them to white. Fig.1 (4) Repeat 2 and 3 above, and make best convergence.

(FRONT VIEW)

DYNAMIC CONVERGENCE ADJUSTMENT (1) Move the deflection yoke up and down and overlap the lines in the periphery. (Fig. 2)

RED

GREEN BLUE

BLUE GREEN

RED GREEN BLUE

(2) Move the deflection yoke left to right and overlap the lines in the periphery. (Fig. 3)

RED

(3) Repeat 1 and 2 above, and make best convergence.

BLUE

GREEN

RED

Fig.2 � After adjustment, fix the wedge at the original position. Fasten the retainer screw of the deflection yoke. Fix the 6 magnets with glue.
(FRONT VIEW) GREEN RED BLUE GREEN BLUE RED RED GREEN BLUE

BLUE GREEN RED

Fig.3

1-28 (No.52111)