Convergence - Sony TRINITRON KV-27S42 Service Manual

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 B
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
b
b
(2)
a
b
(3)
a
b
R
b
R
G
B
V.STAT magnet
a b
B B
G G
R R
R G B
B G R
B
G
G
R
B
KV-27S42/27S46/27S66/29AL42/29AL42C/29AL66/
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.
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 G B B G R
4. Tighten the deflection yoke screw.
5. Install the deflection yoke spacers.
— 15 —
29AL66C/29SL42/29SL42C/29SL46/29XL42M
PURITY
V. STAT
BMC MAGNET
BMC magnet
a
b
B G R
R
B
G G
B R G B R
B G R R G B
R G B
R
B
G G
R B
B G R