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JVC TM-1500PS Service Manual page 18

Colour video monitor

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TM-1500PS
|
a
8. Confirm
that the
purity has
been
attained
with
regard to the red, blue and monocoior rasters.
9. Tentatively fix the deflecting yoke slightly with the
The wedges should be fixed at
clamp screw to prevent its movement in back and
three positions at an interval of
forth direction.
about 120°.
10.Restore the wedges to the initial position and fix
the deflecting yoke.
Use three wedges
of a V-form
and set them
respectively at an interval of about 120°.
The
wedges should be fixed to the Brown tube using
s
silicon bond (KE4866)
11.The clamp screw of the deflecting yoke should be
clamped firmly with and adequate torque.
ADJUSTMENT OF CONVERGENCE
Adjustment
hae
Part
Description
CONVERGENCE | ADJUSTING STEP
MAGNET
. Input the cross hatch signal.
. Overlap the red and blue lings at the center of the
screen with 4-pole magnet to turn the color to
Magenta color (red/blue).
ets
Turn together while
. Next, overlap the Magenta color (red/blue) and
4 maintaining the
green lings at the center of the screen with 6-pole
feeble
magnet.
. Repeat
the Steps
2 and 3, and adjust the
convergence of the vertical and horizontal lines at
the center of the screen.
Open the two
—p>
thumbscrews.
<-
AFTER COMPLETION OF
ADJUSTMENT
1. Subsequent to completing adjustment of the purity
and convergence,
fix the six magnets using an
adhesive (G2 bond or REICHLOCK).
. Then, be sure to adjust the boards on Page 1 - 13
and after.
18 (No.50343)

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