Sony KV-21FA315 Service Manual ▷ View online
30
KV-21FA315/21FA515/29FA315/29FA515
KV-21FA315/21FA515/29FA315/29FA515
KV-29FA315/29FA515 MODELS ONLY
29FA515, 29FA315, 29FA515C, 29FA315C
ONLY FOR CHILE MODELS
Rev.1.3
10/11
50mm +/- 30mm
Fix AC-Cord to DGC using a 11mm purse lock (3-
703-983-02) & through purse lock (4-072-499-11)
as shown in picture. Take as reference carbon
line of CRT.
703-983-02) & through purse lock (4-072-499-11)
as shown in picture. Take as reference carbon
line of CRT.
50mm
Ferrite
P/N:1-500-586-11
P/N:1-500-586-11
31
KV-21FA315/21FA515/29FA315/29FA515
KV-21FA315/21FA515/29FA315/29FA515
KV-29FA315/29FA515 MODELS ONLY
29FA515, 29FA315, 29FA515C, 29FA315C
Rev.1.3
11/11
32
KV-21FA315/21FA515/29FA315/29FA515
KV-21FA315/21FA515/29FA315/29FA515
The following adjustments should be made when a complete
realignment is required or a new picture tube is installed.
realignment is required or a new picture tube is installed.
These adjustments should be performed with rated power supply
voltage unless otherwise noted.
voltage unless otherwise noted.
Set the controls as follows unless otherwise noted:
VIDEO MODE: Pro
PICTURE CONTROL: Normal
BRIGHTNESS CONTROL: Normal
VIDEO MODE: Pro
PICTURE CONTROL: Normal
BRIGHTNESS CONTROL: Normal
SECTION 2: SET-UP ADJUSTMENTS
Perform the adjustments in order as follows:
1. Beam
1. Beam
Landing
2. Convergence
3. Focus
4. Screen
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.
Adjustment Procedure
1. Input a raster signal with the pattern generator.
2. Loosen the defl ection yoke mounting screw, and set the purity
control to the center as shown below:
Purity Control
3. Turn the raster signal of the pattern generator to green.
4. 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.
sides.
Blue Red
Green
5. Move the defl ection yoke forward, and adjust so that the entire
screen becomes green.
6. Switch over the raster signal to red and blue and confi rm the
condition.
7. When the position of the defl ection yoke is determined, tighten it with
the defl ection yoke mounting screw.
8. If landing at the corner is not right, adjust by using the disk magnets.
a
c
b
d
b
a
c
d
Purity control
corrects this area.
Disk magnets
or rotatable disk
magnets correct
these areas (a-d).
Deflection yoke positioning
corrects these areas.
33
KV-21FA315/21FA515/29FA315/29FA515
KV-21FA315/21FA515/29FA315/29FA515
2-2. CONVERGENCE
Before starting convergence adjustments:
1 Perform FOCUS, VLIN and VSIZE adjustments.
2. Set BRIGHTNESS control to minimum.
3. Feed in dot pattern.
Vertical Static Convergence
1. Adjust V. STAT magnet to converge red, green and blue dots in the
center of the screen.
B
G
R
Center dot
V.STAT magnet
RV701
H.STAT
B
G
R
2. Tilt the V. STAT magnet and adjust static convergence to open or
close the V. STAT magnet.
When the V. STAT magnet is moved in the direction of arrow a and b,
red, green, and blue dots move as shown below:
red, green, and blue dots move as shown below:
B
R
G
B
R
G
R G B
B G R
1
2
b
b
b
b
b
b
b
a
a
b
a
a
a
a
3
R
G
B
B
G
R
Horizontal Static Convergence
If the blue dot does not converge with the red and green dots, perform
the following:
1. Move H STAT VR magnet (a) to correct insuffi cient H.Static
the following:
1. Move H STAT VR magnet (a) to correct insuffi cient H.Static
convergence.
B
MC MA
G
NET
PU
RITY
V.STAT
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