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– 5 –

2

 Rear cover

1

Eight screws
(+BVTP 4 × 16 
TYPE 2 IT-3)

2 Rear cover

1 3D Speaker box assy

(KV-HV21F53)

1

Two screws
(WH DIA. 16) 
(+P 4 × 16)

2

 

Terminal 

     bracket

3

One screw
(+BVTP 4 x 16

TYPE 2 IT-3)

1

 

One screw

(+BVTP 3 x 12
TYPE 2 IT-2)

– 6 –

1

J Board (KV-HV21F53) 
Two screws (+BVTP 3x12 TYPE 2 IT-3)

A Board

• Please make sure the TV set is not in standing position before removing necessary CRT support located on bottom

right and left.

1) Place the TV set with the CRT face down on a cushion jig.
2) Remove the rear cover.
3) Unplug all under connecting leads from the Deflection Yoke, Degaussing Coil and CRT grounding strap.

qs

 Degaussing Coil

4

 Anode Cap Removal

5

 C Board Removal

8

 Chassis Assy Removal

9

 Support, CRT(2) Removal

6

Loosen the Neck Assembly
fixing screw and removal

q;

Holder, DGC(2) 
Removal

qf

 DGC(2) Removal

qa

Spring Tension (2)
Removal

qg

 Screw(5) Tapping

qd

 Earth Coating Assy

7

Loosen the Deflection Yoke
fixing screw and remove

– 7 –

• 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.

•

1

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

2

Using a thumb pull up the rubber cap firmly in the di-
rection indicated by the arrow B.

3

turning up the rubber cap and pulling it up in the
direction of the arrow C.

•

1

2

3

anode button

a

a

b

b

c

– 8 –

The following adjustments should be made when a complete
realignment is required or a new picture tube is installed.

The controls and switch should be set as follows unless
otherwise noted:

Picture control ......................................................... NORMAL
Brightness control ................................................... NORMAL

Perform the adjustments in order as follows:
1. Beam Landing
2. Convergence
3. Focus
4. G2 (SCREEN)
5. White Balance

Note: Test Equipment Required
1. Pattern Generator
2. Degausser
3. DC Power Supply
4. Digital Multimeter

Preparation :
• Feed in the white pattern signal.
• Before starting, degauss the entire screen with the

degausser.

• In order to reduce the geomagnetism on the set's

picture tube, face it east or west.

1. Input a raster signal with the pattern generator.
2. Loosen the deflection yoke mounting screw, and set the

purity control to the center as shown below.

3. Set the raster signal of the pattern generator to green.
4. Move the deflection yoke (DY) backward and adjust the

purity control so that green is in the center and blue and
red are at the sides evenly.

5. Then move the DY forward and adjust so that the entire

screen becomes green.

6. Now switch over raster signal to red then blue and

confirm the condition.

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

5. Oscilloscope
6. Landing Checker
7. XCV Adjuster

Purity control

Red

Blue

Green

7. When the position of the DY is determined, tighten it

with the DY mounting screw.

8. If the beam does not land correctly in all corners of the

screen, use magnet disc to correct it.

Preparation :
• Before starting, perform FOCUS adjustment.
• Picture mode STANDARD.
• Receive dot/cross hatch pattern.

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

Center dot

R    G    B

R

G

B

4 pole magnet

RV750
H. STAT

C/CV Board