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– 13 –

• 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

Neck assy

G2

G1

G3

Align the edge of 
the neck assy with 
the edge of the G3 grid. 

Red

Blue

Green

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 Fig 5-1.
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 5-1 through 5-3.)

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

entire screen is green. (See Figure 5-2.)

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 5-4.)

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

}

– 14 –

Preparation :
•

Before starting this adjustment, adjust the focus, horizontal
size and vertical size.

•

Receive cross hatch/dot pattern and set picture mode to
"STANDARD".

1. (Moving horizontally), adjust the H.STAT control so that the

red, green and blue dots are on top of each other at the center
of the screen.

2. (Moving vertically), adjust the V.STAT magnet so that the

red, green and blue dots are on top of each other at the center
of the screen.

3. Adjust Horizontal Trapezoid with “GEO 11 HTR” in Service

Mode to make H-Trapezoid distortion best.

4. If the H.STAT variable resistor cannot bring the red, green

and blue dots together at the center of the screen, adjust the
horizontal convergence with the H.STAT variable resistor and
the V.STAT magnet in the manner given below.
(In this case, the H.STAT variable resistor and the V.STAT
magnet influence each other, so be sure to perform
adjustments while tracking.)

1

V. STAT

2

H. STAT VR

Center dot

R    G    B

R

G

B

H. STAT VR

V. STAT

Magnet

RV702

H. STAT

Y magnet

C Board

R

R

G

G

B

B

a

a

b

b

b

R

R

G

G

B

B

a

b

3

R

R

G

G

B

B

a

a

b

b

b

V.STAT

Purity

BMC (Hexapole)

– 15 –

b

a

c

d

a-d : screen-corner
        misconvergence

(2) Dynamic Convergence Adjustment
Preparation:
•

Before starting this adjustment, adjust the horizontal static
convergence and the vertical static convergence

•

Set the PICTURE and BRIGHTNESS to normal.

1

Receive the dot/hatch pattern signal and adjust picture quality
by the menu.

2

Correct horizontal mis-convergence of red and blue of both
sides on the X axis.
When red is outside insert TLH convergence piece to right
side (TLH +) views from DY neck. And when blue is outside,
insert it to left side (TLH –) and take both sides.

To able to become balance of XCV on the X axis well.

Correct the vertical mis-convergence of red and blue of
vertically sides on the Y axis.

Adjust horizontal mis-convergence of red and blue of
vertically sides on the Y axis. Mentioned above steps 2 to 4
are adjusting respectively perform minuteness tracking.

4

BMC (Hexapole) Magnet.
If the red, green and blue dots are not balanced or aligned,
then use the BMC magnet to adjust in the manner described
below.

5

Y separation axis correction magnet adjustment.

1. Receive the cross-hatch signal and adjust [PICTURE] to

[MIN] and [BRIGHTNESS] to [STANDARD]  .

2. Adjust the Y separation axis correction magnet on the neck

assembly so that the horizontal lines at the top and bottom of
the screen are straight.

Note
1. The Red and Blue magnets should be equally far from the

horizontal center line.

2. Do not separate the Red and Blue magnets too far. (Less than

8 mm)

R

(B)

B

(R)

B

(R)

R

(B)

XCV

BMC magnet

C board

RV9001

VM board

TLV1

YCH

TLV2

R G

B

R

G

B

R

G B

R

B

R

G

G

G

B

R

B

Blue

Red

VM board

Blue

Red

VM board

Neck assy

Neck assy

– 16 –

Note
Focus adjustment should be completed before W/B adjustment.

(1) Receive digital monoscope pattern.
(2) Set "A/V  CONTROL" to "STANDARD".
(3) Adjust FOCUS VR so that the center of the screen becomes

just focus.

(4) Change the receiving signal to white pattern and blue back.
(5) Confirm MAGENTA RING is not noticeable. In case

MAGENTA RING is obvious, adjust FOCUS VR to balance
between MAGENTA RING and FOCUS adjustment.

(1) Receive dot/hatch pattern DRC-MF, DRC1250, DYNAMIC.
(2) Turn FOCUS VR fully counter-clockwise.
(3) Confirm the dot shape at the screen center. (Fig. 5-4)
(4) Resume FOCUS VR.

Note
In case of turning NECK ASSY, loosen the screw 3 turns. Do not
move the position.

 OK

 Turn NECK ASSY clockwise.

 Turn NECK ASSY counter clockwise.

a

b

c

d

Permalloy assembly

1. G2 (SCREEN) ADJUSTMENT
1) Set the PICTURE and BRIGHTNESS to normal.
2) Put to VIDEO input mode without signals.
3) Connect R, G and B of the C board cathode to the

oscilloscope.

4) Adjust BRIGHTNESS to obtain the cathode voltage to the

value below.

5) Whilst watching the picture, adjust the screen VR [RV9002]

located on the C board to the point just before the retrace
lines disappear (to the point before cut-off)

0 V

2. WHITE BALANCE ADJUSTMENT
1) Set to Service Mode (Refer Section 6-1: ADJUSTMENTS

WITH COMMANDER).

2) Input white raster signal.
3) Set the following condition.

PICTURE minimum, BRIGHTNESS 50%

4) Select GCT (WHB 08) and BCT (WHB 09) with 1 and 4,

and adjust the level with 3 and 6 for the best white
balance.

5) Set the PICTURE to maximum.
6) Select GDR (WHB 05) and BDR (WHB 06) with 1 and

4, and adjust the level with 3 and 6 for the best white
balance.

7) Write into the memory by pressing [MUTING] then -.