SERVICE MANUAL Colour Television - diagramas.diagram...
SERVICE MANUAL Colour Television - diagramas.diagram...
SERVICE MANUAL Colour Television - diagramas.diagram...
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Purity and Convergence Adjustment<br />
CONVERGENCE ADJUSTMENT<br />
Preparation: After carrying out purity adjustment and<br />
before proceeding to convergence<br />
adjustment, provisionally insert the rubber<br />
wedge so that there is no vertical or<br />
sideways play in the deflection yoke.<br />
Signals: Display a crosshatch pattern.<br />
Figure 5<br />
FOUR-POLE<br />
MAGNET TABS<br />
ANGLE<br />
OF TABS<br />
1<br />
2<br />
SIX-POLE<br />
MAGNET TABS<br />
3<br />
4<br />
1. Red/blue center adjustment<br />
Adjust the angle between the tabs (1) and (2) in Figure<br />
5 and rotate them together until the lines of the red and<br />
blue crosshatch patterns (vertical and horizontal lines)<br />
are superimposed in the center of the screen.<br />
Figure 6<br />
PURITY<br />
MAGNET<br />
TABS<br />
2. Green and red/blue center adjustment<br />
Adjust the angle between the tabs (3) and (4) in Figure<br />
5 and rotate them together until the lines of the green<br />
crosshatch pattern are superimposed with the red/blue<br />
crosshatch pattern (vertical and horizontal lines) which<br />
were superimposed in step 1).<br />
Figure 7<br />
Red<br />
Blue<br />
Adjust the angle rotation of tabs<br />
(1) and (2) to align the vertical<br />
and horizontal lines.<br />
3. Vertical lines at screen center (Red and Blue)<br />
Use the VR2 control (see Figure 8) at the top of the<br />
deflection yoke to correct the vertical line convergence<br />
at the center of the screen.(See Figure 9.)<br />
Red/Blue<br />
Green<br />
Adjust the angle and rotation of<br />
tabs (3) and (4) to align the vertical<br />
and horizontal lines.<br />
4. Vertical lines at screen top and bottom<br />
Use the VR1 control (see Figure 8) at the top of the<br />
deflection yoke to correct the vertical line convergence<br />
at the top and bottom of the screen. (See Figure 10.)<br />
Figure 9<br />
Use the VR2 control to correct.<br />
5. Horizontal lines at screen top and bottom<br />
Rotate the Deflection yoke to the left or right to correct<br />
the horizontal line convergence at the top and bottom of<br />
the screen. (See Figure 11.)<br />
If vertical lines are intersecting at the top and bottom,<br />
use a screwdriver to adjust the Balance coil at the top of<br />
the deflection yoke. (See Figure 12.)<br />
Red<br />
Figure 10<br />
Blue<br />
Use the VR1 control to correct.<br />
Figure 8<br />
Blue<br />
Red<br />
VR1<br />
Balance<br />
coil<br />
Figure 11<br />
Red<br />
Blue<br />
VR2<br />
Rotate the DY to correct.<br />
Figure 12<br />
Red<br />
Blue<br />
Use the Balance coil to correct<br />
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