Sony TRINITRON KV-16WT1 - SET-UP ADJUSTMENTS; Preparation for Adjustments; Beam Landing Adjustment

KV-16WT1
SECTION 3
SET-UP ADJUSTMENTS
The following adjustments should be made when acomplete
realignment is required or a new picture tube is installed.
These adjustments should be performed with the rated
power supply voltage, unless otherwise noted.
The Contrast and Brightness controls should be set as follows
unless otherwise noted:
(@ CONTRAST control........ Normal
x¢ BRIGHTNESS control..... Normal
Perform the adjustments in the following order:
Beam Landing
Convergence
Focus
Screen
(G2),
Drive,
Sub
Colour
and
Sub
Brightness.
White
Balance
Auto
Adjustment
lade Ne
Note: Test Equipment Required.
1. Colour bar/Pattern Generator
2. Degausser
Preparation:
In order to reduce the influence of external magnetic
forces
on
the
picture
tube,
face
the
TV
set
in
an
easterly
or westerly direction.
Turn the power switch for the unit ON and erase the
magnetic force using a degausser.
3-1. BEAM LANDING
1.
10.
Input an all white raster signal from the pattern generator.
Set the picture to maximum and adjust BRIGHTNESS for clear
picture.
Set the Neck assy to the position Fig. 3-1.
Adjust Focus and Convergence.
Loosen the deflection yoke screw and move the Purity
Adjustment handle to the centre. (Fig. 3-2.)
Switch the pattern generator to Green.
Move the deflection yoke backward, and adjust with purity
control so that Green is at the center and Blue and Red are
evenly spaced at the side. (Fig. 3-3.)
Move
the
deflection
yoke
forward,
and
adjust
so
the
entire
screen
becomes
Green.
Switch the pattern generator to Red and Blue, and confirm
the condition.
When position of the deflection yoke has been determined,
tighten it with the deflection yoke mounting screw.
When the landing at the corners are not correct, adjust by
using disk magnets. (Fig. 3-4.)
G5 G6
Purity Magnet \ /
/ {
4 Pole Magnet / L OC
\ / H
/
/
\
/ i
BMC
(6
Pole)
Magnet
|
|
|
|
ELI
Neck Assy
Q
>—
Fig. 3-1
Fig. 3-2 Purity control
Fig. 3-3
Fig. 3-4
Purity control corrects
this area.
Disk magnets or
rotatable disk
magnets correct
these areas (a-d).
Deflection yoke
positioning corrects yet
these areas. ae
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