Convergence - Sony TRINITRON KV-AR25M90B Service Manual

KV-AR25M90B
RM-W104

2-2. CONVERGENCE

• Before starting this adjustment, adjust the focus,
horizontal size and vertical size.
• Receive dot/hatch signal
• Pic mode: Soft
Center dot
R G B
H. STAT VR
(1) Horizontal and Vertical Static Convergence
1. (Moving vertically), adjust the V.STAT magnet so that the
red, green and blue dots are on top of each other at the
centre of the screen.
2. (Moving horizontally), adjust the H.STAT VR control so
that the red, green and blue dots are on top of each
other at the center of the screen.
3. If the H.STAT variable resistor cannot bring the red,
green and blue dots together at the center of the screen,
adjust the horizontal convergence with the H.STAT
variable resistor and the V.STAT magnet in the manner
given below.
(In this case,the H.STAT variable resistor and the V.STAT
magnet influence each other so be sure to perform
adjustments while tracking).
4. BMC (Hexapole) Magnet.
If the red, green and blue dots are not balanced or aligned,
then use the BMC magnet to adjust in the manner
described below.
1
V. STAT
a
b
2
H. STAT VR
a
R G B
R
G
B
V. STAT
Magnet
RV750
H. STAT
RV1800
SCREEN (G2)
C Board
a
b
B B
b
G G
R
R
b
B G R
3
H. STAT
b
a
b
4
BMC (Hexapole) Magnet
R G B
R B
G
Purity
DY pocket
V.STAT
V.STAT
5. Operation of V.STAT magnet
If the V.STAT magnet is moved in the "a" and "b" arrows,
the red, green and blue dots moves as shown below.
b
a
b
6. Moved RV705 H.STAT.
the red, green an blue dots move as shown below.
a
R G B
– 10 –
a
b
B
R
G
G
R
B
R G B R G B
R G B G
R B
BMC
BMC (Hexapole)
Purity
a
b
B
B
G
G
R
R
b
B G R