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3-2. CONVERGENCE
Preparation
•
Before starting, perform FOCUS, H.SIZE, V.LIN
and V.SIZE adjustments.
•
Set BRIGHTNESS control to minimum.
•
Feed in dot pattern.
(1) Horizontal and Vertical Static Convergence
Center dot
H.STAT
V. STAT Magnet
~G2
LV
FOCUS
1. Adjust H.STAT VR to converge red, green and
blue dots the in center of the screen. (Horizontal
movement)
2. Adjust V.STAT magnet to converge red, green
and blue dots in the center of the screen.
(Vertical movement)
3. If the red, green and blue dots do not converge in
the center of the screen with H.STA T VR,
perform horizontal convergence adjustment using
H.STAT VR and V.STAT magnet as shown
below. (In this case, H.STAT VR and V.STAT
magnet effect each other.)
•
Tilt the V.STA T
magnet and adjust static
convergence to open or close the V.STAT magnet.
KV-27XBRS 1/27XBR55
RM-Y106
RM-Y107
4. When the V.STAT magnet is moved in the
direction of arrow @ and @. red, green and blue
dots move as shown below.
ill
1i1L
_:L_
_:IL
T
R+~
Rf
t
®
I
T
, ,
/
R'\_
@
I
: r :
®
B°"
G
If the blue dot do not converge with red and green
dots, perform following steps.
•
HMC and VMC correction for BMC (Hexapole)
Magnet
1. HMC (Horizontal Mis-convergence)
correction
and motion of the Electron Beam with the BMC
Magnet.
H MC
correction
(A)
R G
B
00
0
~
R . . GB
0 0
0
~
H
MC
correction (
B)
A>B R
G B
0
oo
~
R
~
B
A = B l i . J
A B
-27-
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