JVC AV-21PM Service Manual page 26

AV-21PM
STATIC CONVERGENCE ADJUSTMENT
1. Input a cross-hatch signal.
2. Using 4-pole convergence magnets, overlap the red and blue
lines in the center of the screen (Fig. 1) to turn them to magenta
(red/blue).
3. Using 6-pole convergence magnets, overlap the magenta (red/
blue) and green lines in the center of the screen to turn them to
white.
4. Repeat 2 and 3 above, and make best convergence.
DYNAMIC CONVERGENCE ADJUSTMENT
1. Move the deflection yoke up and down and overlap the lines in
the center. (Fig. 2)
2. Move the deflection yoke left to right and overlap the lines in the
periphery. (Fig. 3)
3. Repeat 1 and 2 above, and make best convergence.
After adjustment, fix the wedge at the original position.
Fasten the retainer screw of the deflection yoke.
Fix the PC magnets with glue.
26
(FRONT VIEW)
(FRONT VIEW)
BLUE
GREEN
RED
(FRONT VIEW)
GREEN
BLUE
RED
No. 56055
Fig. 1
RED GREEN BLUE
RED
GREEN
BLUE
BLUE GREEN RED
Fig. 2
GREEN
BLUE RED
Fig. 3
RED
GREEN
BLUE
BLUE
GREEN
RED