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3-2. CONVERGENCE
Preparation:
©
Before starting this adjustment, perform FOCUS,
H. SIZE and V. SIZE adjustments.
@® Turn
BRIGHTNESS
control
fully counterclock-
wise.
@
Feed ina dot pattern.
(1)
Horizontal
and
Vertical
Static Convergence
Center dot
Center dot
KV-1412EC
RM-635
KV-1412EC
RM-635
If blue dot does not coincide
with red and green
dots, perform following steps.
Beam Alignment Magnet
Move
BMC
magnet
(a)
to
correct
insufficient.
H. static convergence.
Rotate
BMC
magnet
(b) to correct
insufficient
V. static convergence.
In either
case,
repeat
Beam
Landing
Adjustment.
©
(©)
(A)
(B)
V. STAT
RV704 B DRIVE
RV702 G DRIVE
RV709 SUB BRT
RV706 H. STAT
3-3. WHITE
BALANCE
(1) SCREEN (G2)
1.
2s
In put a dots pattern.
Set the PICTURE
control at minimun and turn
the BRIGHT control fully counterclock wise.
Confirm that BKG
voltage is less than 160V dc
when turning RV701 (R.BKG), RV703 (G.BKG)
and RV705 (B.BKG).
Note the color which becomes visible first when
turning RV708(SCRN).
(2) WHITE BALANCE (cut off)
1.
2;
Input a cross-hach pattern...
Set the PICTURE
control to minimun and turn
the BRIGHT control click position.
Turn RV704 (B.DRIVE) and RV702 (G.DRIVE)
fully clockwise.
Set
RV701
(R.BKG),
RV703
(G.BKG)
and
RV705 (B.BKG) to minimun.
Turn RV709 (SUB BRT) slowly to obtain a
faintly visibe
cross-hatch.
Note
the color that
first
becomes
visible
by turning
RV709.
Do
not turn a BKG control for this color.
(2)
Dynamic Convergence Adjustment
Preparation:
Before
starting,
perform
Horizontal
and Vertical
Static Convergence Adjustment.
. Loosen deflection yoke screw.
. Remove deflection yoke spacers.
. Move
the deflection
yoke for best convergence
as shown below.
Tighten the deflection yoke screw.
5. Install the deflection yoke spacers.
Adjust
the
other
two
BKG
controls
for best
white
balance (neutral gray) of the faint cross-
hach.
Set the PICTURE control to maximum and turn
the BRIGHT
control
fully clockwise.
Observe
the screen
and adjust the DRIVE
controls for
best white balance.
Repeat steps 1. through 8. several times.
Note: (-
Nn Wn Ff W
my
mF
>
i?)
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