Sharp VT-3448X Service Manual page 14

in the set to warm it up for 30 minutes or longer.
(over 700 PA for VT-5148X).
in advance. Roughly adjust the static conver-
gence.
beam current to about 500 PA. (about 770 PA for
ADJUSTMENT
Eastward magnetic field specified
shown in Fig. A, through a microscope. Ad-
just the landings as specified.
ward as shown in Fig. B, move the deflection
yoke forward.
or to the left, as shown in Fig. C and Fig. D,
adjust the opening angle of the purity magnet.
just as specified about the screen center. Now
check the cathode ray tube corners.
Be sure that all the landings are at rank "B".
move the deflection yoke back and forth.
LANDING ERROR
Outward: Move the deflection yoke forward.
l
Inward: Move the deflection yoke backward.
l
RASTER ROTATION
Adjustment error : 0 +2 mm
l
Tightening torque : II+2 kg
l
Note : Each time the single-colour key is pressed,
the screen colour changes as follows.
b
a
- - - - - -
I
Fig. A
Left
,
Beam landing equally outwards
Fig. B
. \
Left
:I' 6 '
m landing shifted to right.
Fig. C
Left
Beam landing shifted to the left.
Fig. D
Right
Right
Right