Convergence - Sony FD Trinitron KV-29CL11B Service Manual

3-2. Convergence

Preparation:
•
Before starting this adjustment, adjust the focus, horizontal
size and vertical size.
•
Minimize the Brightness setting.
•
Input a dot pattern from the pattern generator.
Horizontal and Vertical Static Convergence
Center dot
R G
B
V.STAT Vertical Static Magnet
H STAT
convergence
control
Fig.3-5
1. [Moving horizontally], adjust the H.STAT control so that
the Red, Green and Blue points are on top of each other at
the centre of the screen.
2. [Moving vertically], adjust the V.STAT magnet so that the
Red, Green and Blue points are on top of each other at the
centre of the screen.
3. If the H.STAT variable resistor is unable to bring the Red,
Green and Blue points together at the centre of the screen,
adjust the horizontal convergence with the H.STAT variable
resistor and the V.STAT magnet in the manner indicated
below.
[In this case, the H.STAT variable resistor and the V.STAT
magnet influence each other].
•
Tilt the V.STAT magnet and adjust the static convergence by
opening or closing the V.STAT magnet.
R
G
B
C Board
RV7002 (H STAT)
H STAT Convergence
(on mount side)
4. If the V.STAT magnet is moved in the direction of the (a)
and (b) arrows, the Red, Green and Blue points move as
indicated below.
b
a
a
b
a
b
b
a
Operation of the BMC (Hexapole) magnet.
R G B
R
B
G
The movement of the magnets interact with each other and so
the respective dot position should be monitored while carrying
out this adjustment.
Use the H.STAT VR to adjust the Red, Green and Blue dots so
that they coincide at the centre of the screen
(by moving the dots in the horizontal direction).
- 18 -
a
b
B B
G G
R R
a
R G B
b
R G B
a
R
B
G G
B
R G B R
R G B
R
b
R
G B
G
B