AV-20N3 AV-20NMG3 AV-20NMG3B

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).

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.

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 periphery. (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 6 magnets with glue.

(FRONT VIEW )

Fig.1

(FRONT VIEW )

RED GREEN BLUE

BLUE

RED

GREEN

GREEN

RED

BLUE

BLUE GREEN RED

Fig.2

(FRONT VIEW )

GREEN

GREEN

RED

BLUE

BLUE

RED

 

 

 

RED

 

 

 

GREEN

 

 

 

BLUE

 

 

 

BLUE

 

 

 

GREEN

 

 

 

RED

 

 

Fig.3

 

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JVC AV-20N3/D, AV-20NMG3/-A, AV-20NMG3B service manual Static Convergence Adjustment, Dynamic Convergence Adjustment