Convergence - Sony KV-G21M2 Service Manual

3-2. CONVERGENCE

Preparation :
•
Before starting this adjustment, adjust the focus, horizontal size,
and vertical size.
•
Minimize the brightness setting.
•
Provide dot pattern.
(1) Horizontal and Vertical Static Convergence
Center dot
R
G
B
R G B
C board
1. (Moving vertically), adjust the V.STAT magnet so that the red,
green and blue dots are on top of each other at the center of the
screen.
2. (Moving horizontally), adjust the H.STAT VR so that the red,
green and blue dots are on top of each other at the center of the
screen.
V.STAT
V.STAT Magnet
RV 701
SCREEN (G2)
Purity
– 13 –
•
Operation of V.STAT magnet.
If the V.STAT magnet is moved in the direction of the a and
b arrows, the red, green and blue dots move as shown below.
1
a
b b
2
a
b
3
a
b
R
b
•
Operation of BMC (Hexapole) magnet.
If the blue or red dot does not converge with the other two dots,
perform following steps.
Move BMC magnet (a) to correct insufficient H.static
convergence.
Rotate BMC magnet (b) to correct insufficient V.static
convergence.
In either case, repeat Beam Landing Adjustment.
b
KV-G21M2
a b
B B
G G
R R
a
R G B
b
B G R
a
b
B
G
G
B R
BMC magnet
a
RM-869