Convergence - Sony TRINITRON KV-21M3A Service Manual

KV-21M3/21T3
3-2. CONVERGENCE
Preparation:
Before starting, perform FOCUS, H.SIZE, and V.SIZE
adjustments.
Set the BRIGHTNESS control to minimum.
Input a dot pattern from the pattern generator.
(1) Horizontal and Vertical Static Convergence
Centre dot
H.STAT
Control
V.STAT Magnet
C Board
Adjust the H.STAT control to converge the Red, Green and
Blue dots at the centre of the screen. (Horizontal movement)
Adjust the V.STAT magnet to converge the Red, Green and
Blue dots at the centre of the screen. (Vertical movement)
If the horizontal dots cannot coincide with variable range of
the H.STAT convergence, adjust together with the V.STAT
convergence while tracking.
(Adjust the convergence by tilting the V.STAT convergence
or by opening or closing the V.STAT convergence.)
3. When 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) @ @) ®
© 7h. 0
BO
4
B
: \ Ge G +
Ro R
If the Red and Blue dots do not converge withthe Green
dots, perform the following steps.
1. Move the BMC magnet (a) to correct for insufficient
H. static convergence.
2. Rotate the BMC magnet (b) to correct forins ufficient
V.static convergence.
In either case, repeat the Beam Landing Adjusment.
BMC magnet
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