KV-BT21N40 - Sony TV Service Manual (repair manual). Page 9

– 9 –

• Before starting this adjustment, adjust the focus,

horizontal size and vertical size.

• Receive dot/hatch signal.
• Pic mode: Soft.

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 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.)

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.

Moved RV750 H. STAT.
the red, green and blue dots move as shown below.

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.

Center dot

R    G    B

R

G

B

H. STAT VR

V. STAT

Magnet

RV750
H. STAT

C Board

BMC (Hexapole)

V.STAT

DY pocket

Purity

V.STAT

BMC

Purity

R

R

G

G

B

B

A

B

B

A

R

R

G

G

B

B

A

B

R G

B

R

G

B

R

G B

R

B

R

G

G

G

B

R

B