Set-Up Adjustments; Beam Landing - Sony Transitron KV-B14K3 Service Manual

KV-B14K3
RM-849S
•
The following adjustments should be made when a complete
realignment is required or a new picture tube is installed.
•
These adjustments should be performed with rated power
supply voltage unless otherwise noted.
Controls and switch should be set as follows unless otherwise noted:
PICTURE control ........................................................... normal
BRIGHTNESS control ................................................... normal
.................................................................................................................................................................................................................................
Preparation :
•
Feed in the white pattern signal.
•
Before starting, degauss the entire screen.

3-1. BEAM LANDING

1. Input a raster signal with the pattern generator.
2. Loosen the deflection yoke mounting screw, and set the purity
control to the center as shown in Fig. 2.
3. Turn the raster signal of the pattern generator to green.
4. Move the deflection yoke backward, and adjust with the purity
control so that green is in the center and red and blue are at the
sides evenly. (Fig. 1 through 3.)
5. Move the deflection yoke forward and adjust so that the entire
screen becomes green. (Fig. 1.)
6. Switch over the raster signal to red and blue and confirm the
condition.
7. When the position of the deflection yoke is determined, tighten
it with the deflection yoke mounting screw.
8. When landing at the corner is not right, adjust by using the disk
magnets. (Fig. 4.)
SECTION 3

SET-UP ADJUSTMENTS

Fig. 1
Perform the adjustments in the following order :
1. Beam Landing
2. Convergence
3. Focus
4. Screen (G2) and White Balance
Note : Test Equipment Required :
1. Color-bar/Pattern Generator
2. Degausser
3. DC Power Supply
4. Digital Multimeter
Purity control corrects
this area.
a
c
Deflection yoke positioning
corrects these areas.
b
d
– 10 –
Purity control
Fig. 2
BLUE RED
GREEN
Fig. 3
Disk magnets or rotatable
b disk magnets correct
these areas (a-d).
d
a
c
Fig. 3-4