Sony KV-27S42 service manual Vertical Static Convergence, Horizontal Static Convergence

3-2. CONVERGENCE

Before starting convergence adjustments:

1.Perform FOCUS, V.LIN AND V.SIZE adjustments.

2.Set BRIGHTNESS control to minimum.

3.Feed in dot pattern.

Vertical Static Convergence

1.Adjust V.STAT magnet to converge red, green and blue dots in the center of the screen. (Vertical movement)

Center dot	R
	G
R G B	B

V.STAT magnet

2.Tilt the V.STAT magnet and adjust static convergence to open or close the V.STAT magnet.

When the V.STAT magnet is moved in the direction of arrows a and b , red, green, and blue dots move as shown below:

(1)	a	a	b
b		b	B
		B
		G	G

KV-27S42/27S46/27S66/29AL42/29AL42C/29AL66/ 29AL66C/29SL42/29SL42C/29SL46/29XL42M

Horizontal Static Convergence

If the blue dot does not converge with the red and green dots, perform the following:

1.Move BMC magnet (a) to correct insufficient H. Static convergence.

2.Rotate BMC magnet (b) to correct insufficient V. Static convergence.

3.After adjusting the BMC magnet, repeat Beam Landing Adjustment.

PURITY

V. STAT

BMC MAGNET

BMC magnet

a

b

Dynamic Convergence Adjustment

Before performing this adjustment, perform Horizontal and Vertical Static Convergence Adjustment.

1.Slightly loosen deflection yoke screw.

2.Remove deflection yoke spacers.

3.Move the deflection yoke for best convergence, as shown below:

R	R
(2)
a	B
R G

b

B G R

(3)

a

b

RB

GG

b

BR

R B G R B

G G

B R G B R

R G B B G R

B R G B R

B G R R G B

GG R B G R B

4.Tighten the deflection yoke screw.

5.Install the deflection yoke spacers.

— 15 —