When the specified performance can no longer be
obtained with the adjusters on the front panel or when
parts have been replaced due to a malfunction, perform
adjustment of the following parts.
1-1. MAIN CHASSIS
Deflection yoke
Deflection yoke
~
set screw
Deflection yoke
Deflection yoke
~
set screw
(1) Purity Adjustment
4-pole convergence magnet
6-pole convergence magnet
Purity magnet
0
14-17R/RP
Purity magnet
4-pole convergence magnet
6-pole convergence magnet
20-17R/RP
CD Set the input signal to the full-white signal or
similar signal which produces an even bright-
ness over the entire screen.
@ Press the /DEGAUSS/ switch to demagnetize the
magnetized shadow mask.
@ Turn "ON" only the /G.SCREENI switch to set
the rasters of the screen to a single green color.
@ Loosen the deflection yoke set screw, remove
the silicon which holds the deflection yoke and
CRT in place, and slide the deflection yoke all
the way back.
@ Loosen the lock ring which holds the magnets
in place.
@ Adjust the two purity magnets alternately so
that there are green vertical lines at the center of
the screen ..
- 1 -
(J) While watching the screen, slide the deflection
yoke forward so that the screen is an even green
color. If the screen does not become an even
green color, perform adjustment again from step
@.
@ Set to blue and red, and confirm that the screen
is a single color.
® Set to white rasters and if there is partial
coloring of the rasters, slightly shift the position
of the deflection yoke either forward or back.
@) After completing adjustment, tighten the deflec-
tion yoke set screw and lock ring.
(2) Convergence Adjustment
Before performing convergence adjustment, allow
the monitor to warm up for at least 30 minutes.
Input the cross hatch signal..
(a) Center convergence
CD Loosen the lock ring.
@ Turn "ON" only the /R.SCREENI and
IB.SCREENI switches to set to blue and red
screen.
@ While paying attention to the cross section in
the center of the screen, adjust the angles of the
two 4-pole magnets as shown below to adjust
the shifting of the vertical blue and red lines.
Blue
----i•--------
-----o---
Red
With the angle of the two 4-pole magnets
remaining at that described in @ , rotate the two
magnets simultaneously to adjust any shifting of
horizontal lines.
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