KV-29FS150 - Sony TV Service Manual (repair manual). Page 13

Read Sony KV-29FS150 Service Manual online

KV-29FS150
KV-29FS150 
13
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.
Set the controls as follows unless otherwise noted:
Picture control 
NORMAL
Brightness control  NORMAL
SECTION 2:  SET-UP ADJUSTMENTS
Perform the adjustments in order as follows:
 1. 
Beam 
Landing
 2. 
Convergence
 3. 
Focus
 4. 
Screen 
(G2)
 5. 
White 
Balance
Note Test Equipment Required:
 
1. 
Color Bar Pattern Generator
 2. 
Degausser
 
3. 
DC Power Supply
 4. 
Digital 
Multimeter
2-1. BEAM LANDING
Before beginning adjustment procedure:
1.  Feed in the white pattern signal.
2.  In order to reduce the geomagnetism on the set’s picture tube, face 
it east or west.
Adjustment Procedure
1.  Input a raster signal with the pattern generator.
2.  Loosen the defl ection yoke (DY) mounting screw, and set the purity 
control to the center as shown below:
Purity control
3.  Position the VM coil as shown below:
VM coil
G2
G1
G3
Align the edge of
the VM coil with
the edge of the G3 grid.
G4
4.  Set the raster signal of the pattern generator to green.
5.  Move the defl ection yoke backward, and adjust with the purity 
control so that green is in the center and red and blue are even on 
both sides. 
Red
Blue
Green
6.  Move the defl ection yoke forward, and adjust so that the entire 
screen becomes green. 
7.  Switch over the raster signal to red, then blue and confi rm the 
condition.
8.  When the position of the defl ection yoke is determined, tighten it 
with the defl ection yoke mounting screw.
9.  If landing at the corner is not right, adjust by using the disk 
magnets. 
a
b
b
c
c
d
d
a
Purity control
corrects this area.
Disc magnets or rotatable
disc magnets correct these
areas (a-d).
Deflection yoke positioning
corrects these areas.
 5. 
Oscilloscope
 6. 
Landing 
Checker
 7. 
XCV 
Adjuster
Page of 85
Display

Click on the first or last page to see other KV-29FS150 service manuals if exist.