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 21 

–

2 Eight screws
     (+BVTP 4 

× 16)

3 Three screws
     (+BVTP 4 

× 16)

1 Rear cover

Three screws
(Step Tapping)

 

1 Chassis assy

For replacement of the Control Button and Light Guide,
unscrew them, exchange with the new parts, and fix them
with screws (+BVTP) respectively.

Control button

Two screws
(+BVTP 3 

× 12)

One screw
(+BVTP 3 

× 12)

–

 22 

–

3 Two connectors

4 Two screws (+BVTAP 3 

× 12)

1 Two connectors

4 Four claws

5 H2 Board

2 Two connectors

4 B6 Board  

5 A Board

1 Three screws
     (+BVTAP 3 

× 12)

2 Three screws
     (+BVTAP 3 

× 12)

3 Two claws

4 Terminal bracket

1 Two screws
     (+ BVTP 3 

× 12)

2 One screw
     (+ BVTP 4 

× 16)

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 23 

–

•REMOVAL OF ANODE-CAP

NOTE : After removing the anode, short circuit the anode of the picture tube and

the anode cap to the metal chassis, CRT shield or carbon paint on the
CRT.

•REMOVING PROCEDURES

1 Do not damage the surface of anode-caps with sharp shaped objects.
2 Do not press the rubber too hard so as not to damage the inside of anode-cap.

3 Do not turn the foot of rubber over too hard.

• HOW TO HANDLE AN ANODE-CAP

3 When one side of the rubber cap is separated from the anode button,  the anode-cap

can be removed by turning up the rubber cap and pulling it up in the direction of the
arrow c.

2 Using a thumb pull up the rubber cap firmly in the direction indicated by the arrow b.

1 Turn up one side of the rubber cap in the direction indicated by the arrow a.

Anode button

a

a

b

b

c

!º Four DGC clips

!¢ Degaussing coil

9 Four claws

1 Three screws 

(Step Tapping)

!™ Two screws

(Tapping)

5 Chassis assy

8 Deflection

yoke

7 Neck assy

6 C6 board

4 Anode cap

!¡ Picture tube

Cushion

!™ Two screws

(Tapping)

!£ Tension

spring

DGC holder

DGC holder

Cushion (50 

× 250) 

DGC

Cushion (50 

× 250) 

DGC

2

 Speaker

1 Three screws 

(Step Tapping)

– 24 –

• 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 switches should be set as follows unless otherwise noted:

PICTURE control ...........................................................  normal

BRIGHTNESS control ...................................................  normal

Perform the adjustments in the following order :

1. Beam Landing

2. Convergence

3. Focus

4. White Balance

Note :  Test Equipment Required.

1. Color-bar/Pattern Generator

2. Degausser

3. Oscilloscope

................................................................................................................................................................................................................................

}

normal

Preparation :
• In order to reduce the influence of geomagnetism on the set's

picture tube, face it east or west.

• Switch on the set's power and degauss with the degausser.

1. Input a white signal with the pattern generator.

Contrast

Brightness

2. Position neck assy as shown in Fig3-2.

3. Set the pattern generator raster signal to a green raster.

4. Move the deflection yoke to the rear and adjust with the  purity

control so that the green is at the center and the blue and the red

take up equally sized areas on each side.

(See Figures 3-1 through 3-4.)

5. Move the deflection yoke forward and adjust so that the entire

screen is green. (See Figure 3-2.)

6. Switch the raster signal to blue, then to red and verify the

condition.

7. When the position of the deflection yoke has been decided,

fasten the deflection yoke with the screws and DY spacers.

8. If the beam does not land correctly in all the corners, use a

magnet to adjust it.

(See Figure 3-5.)

Neck assy

G2

G1

G3

Behind the G2 edge

Purity control

Red

Blue

Green

Purity control
corrects this area.

Disk magnets or rotatable
disk magnets correct these
areas (a-d).

Deflection yoke positioning
corrects these areas.

a

b

b

c

c

d

d

a