24212102 datasheet(5/54 Pages) TOSHIBA

Part #	24212102

Description	COLOR TELEVISION

Download	54 Pages

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Manufacturer	TOSHIBA [Toshiba Semiconductor]

Direct Link	http://www.semicon.toshiba.co.jp/eng

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CONVERGENCE ADJUSTMENTS

NOTE: Before attempting any convergence adjustments,

the receiver should be operated for at least fifteen

minutes.

s

CENTER CONVERGENCE ADJUSTMENT

1. Display built-in cross-dot pattern using the TEST SIG-

NAL SELECTION function.

2. Adjust the BRIGHTNESS and CONTRAST Controls

for well defined pattern.

3. Loosen the tightening ring and adjust two tabs of the

4-Pole Magnets to change the angle between them

(See figure 4.) and superimpose red and blue vertical

lines in the center area of the picture screen.

(See figure 3.)

4. Turn the both tabs at the same time keeping the con-

stant angle to superimpose red and blue horizontal

lines at the centre of the screen. (See figure 3.)

5. Adjust two tabs of 6-Pole Magnets to superimpose red/

blue line with green one. Adjusting the angle affects

the vertical lines and rotating both magnets affects the

horizontal lines.

6. Repeat adjustments 3, 4, 5 keeping in mind red, green

and blue movement, because 4-Pole Magnets and 6-

Pole magnets interact and make dot movement com-

plex.

7. After completing the “CENTER CONVERGENCE AD-

JUSTMENT” tighten the tightening ring to fix the mag-

nets.

Figure 3.

s

Xv COIL ADJUSTMENT

Adjust the Xv coil (on the deflection yoke) to correct

misconvergence at both sides on screen.

Use a hexagonal tip stick (plastic) to adjust the core of

coil.

BLU

BLU RED

RED

6-POLE MAGNETS

MOVEMENT

4-POLE MAGNETS

MOVEMENT

RED/BLUE

RED/BLUE GRN

GRN

Center Convergence by Convergence Magnets

R

B

R

B

R

B

Clockwise Adjustment Counterclockwise Adjustment

Xv Cross Pattern View

s

SCREEN-CORNER CONVERGENCE

When the misconvergence is still evident on corners even

though the above adjustment is done, use the ferrite sheet

(Part No. 23993622) to correct misconvergence.

1. Put ferrite sheets into the space under the yoke.

Decide such position that misconvergence becomes

minimum, watching picture screen. (See figure below.)

2. Remove cover paper of ferrite sheet to stick it in the

place on the tube. Put adhesive tapes on ferrite sheets

to fix.

Figure 4.

Ferrite

Sheets

Ferrite

Sheets

For correcting misconvergence

on the position A

A

4-POLE

MAGNETS

6-POLE

MAGNETS

PURITY

MAGNETS

PURITY/CONVERGENCE

MAGNETS

ADJUST THE ANGLE

(VERTICAL LINES)

FIXED

ROTATE TWO TABS

AT THE SAME TIME

(HORIZONTAL LINES)

ADJUSTMENT OF MAGNETS

Clockwise Adjustment

Counterclockwise Adjustment

XV Cross Pattern View

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