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– 5 –

1

Two screws
(4x16),
TAPPING,+P

1

Eight screws
(+BVTP 4x16)
Type2 IT-3

2

 Rear cover

1

Two screws
(4x16) 
Tapping,+P

1

Two screws
(+BVTP 4x16
Type2 IT-3)

3

 Terminal bracket

1

 One screw

 

(+BVTP 3x12

 

Type2 IT-3)

2

 One screws

 

(+BVTP 4x16

 

Type2 IT-3)

– 6 –

qd

 Screw, Tapping 5+

Crown Washer (x4)

4

 Anode Cap Removal

8

 Degaussing Coil

6

 Loosen the Neck Assembly 

fixing screw and remove
Neck Assy

qa

 Loosen the Deflection Yoke

fixing screw and remove

5

 CV Board Removal

9

 Spring Tension(2) 

Removal

7

 Holder, DGC

Removal (x2)

0

 Earth Coating Assy

qs

 Supports, CRT

Removal (x2)

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

and left.

1) Remove the Rear Cover.
2) Unplug all interconnecting leads from the Deflection Yoke, Neck Assy, Degaussing Coils and CRT grounding strap. Remove

Chassis Assy.

3) Place the TV set with the CRT face down on a cushion (jig).

A Board

– 7 –

C

 Anode Button

B

B

A

A

• 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 direction

indicated by the arrow b.

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.

•

1 Do not damage the surface of anode-caps with sharp

2 Do not press the rubber too hard so as not to damage

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

– 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.

Disc magnets or rotatable
disc 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