Convergence Adjustment - Sony TRINITRON KV-SZ25M61 Service Manual

KV-SZ25M61/N60
RM-GA002

2-2. CONVERGENCE ADJUSTMENT

Preparation:
• Before starting, perform FOCUS adjustment.
• Picture Mode "SOFT"
• Receive dot/cross hatch pattern.
a) Vertical Static Convergence
Center dot
R G B
1. (Moving vertically), adjust the 4 pole magnet to
converge red, green and blue dots in the center of
the screen.
2. Tilt the 4 pole magnet and adjust static convergence
to open or close the 4 pole magnet.
3. When the 4 pole magnet is moved in the direction of
arrow A and B, the red, green and blue dots moves
as shown below:-
A
B
R G B
R
G
B
4 pole magnet
RV750
H. STAT
RV1800
G2 (SCREEN)
A
B
B B
B
G G
R R
Moved RV750 (H.STAT)
R G B
b) Horizontal Static Convergence
If the blue dots does not converge with the red and
green dots, use the 6 pole magnet to adjust in
the manner described below:-
R G B
R B
G
DY pocket
4 Pole
Magnet
c) Y Separation axis correction magnet adjustment.
1. Receive cross hatch signal.
2. Set Picture to "MINIMUM", Brightness to "STANDARD".
3. Adjust the Y separation axis correction magnet on
the Neck Assembly so that the horizontal lines at
the top and bottom of the screen are straight.
Blue Red
Neck assy
VM board
– 8 –
R G B R G B
R G B G
R B
6 Pole
Magnet
6 Pole Magnet
Purity
4 pole Magnet
Blue
Neck assy
VM board
Red