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– 9 –

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

Set the controls as follows unless otherwise noted:
VIDEO MODE: .................................................... Standard
PICTURE CONTROL: ......................................... Normal
BRIGHTNESS CONTROL: ................................. Normal

Perform the adjustments in the following order :

1. Beam Landing
2. Convergence
3. Focus
4. Screen(G2)
5. White Balance

Note : Test Equipment Required.

1. Pattern Generator
2. Degausser
3. DC Power Supply
4. Digital Multimeter
5. Oscilloscope

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 2-1.
3. Set the pattern generator raster signal to a green raster.
4. Move the deflection yoke to the rear and adjust with

purity control so that the green is at the center and the
blue and the red take up equally sized areas on each
side. (Figures 2-2 through 2-4.)

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

entire screen is green. (Figure 2-2.)

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

condition.

7. When the position of the deflection yoke have 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.
(Figure 2-5.)

Red

Blue

Green

a

b

b

c

c

d

d

a

Purity control
corrects this area.

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

Deflection yoke positioning
corrects these areas.

Purity control

Neck assy

G2

G1

G3

Align the edge of
the neck assy with
the edge of the G2 grid.

normal

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– 10 –

•

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

•

Receive dot/hatch signal

•

Pic mode: Soft

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

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

2. (Moving horizontally), adjust the H.STAT VR control so

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

3. 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).

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.

H. STAT VR

V. STAT
Magnet

RV750
H. STAT

RV1800
SCREEN (G2)

C Board

Center dot

R     G     B

G

R

B

a

a

b

b

b

R

R

G

G

B

B

a

b

R

R

G

G

B

B

1

V. STAT

2

H. STAT VR

R

R

G

G

B

B

a

a

b

b

b

R

R

G

G

B

B

a

b

R G

B

R

G

B

R

G B

R

B

R

G

G

G

B

R

B

3

H. STAT

R

R

G

G

B

B

a

a

b

b

b

Purity

BMC

BMC (Hexapole)

Purity

DY pocket

V.STAT

V.STAT

4

BMC (Hexapole) Magnet

5. Operation of V.STAT magnet

If the V.STAT magnet is moved in the "a" and "b" arrows,
the red, green and blue dots moves as shown below.

6. Moved RV705 H.STAT.

the red, green an blue dots move as shown below.

– 11 –

6. 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.

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

Neck assy

Neck assy

Blue

Red

Blue

Red

VM1 board

VM1 board

R B

R B

TLH

TLV

YCH

XCV

B

R

R

B

TLV-1

XCV

YCH

DY pocket

DY pocket

TLH Plate

XCV

TLV

Rotate TLV-2 VOL (29", 34") on DY

XCV

Rotate XCV

Adj core on DY

YCH

Rotate YCH

VOL on DY

TLH

Insert

TLH

Correction Plate to DY Pocket

(Left or Right)

(3) Screen-corner Convergence
If you are unable to adjust the corner convergence
properly, this can be corrected with the use Piece A(120)
Conv. Correct.

1.  Affix the  Piece A(120) Conv. Correct corresponding to

the misconverged areas.

b

a

c

d

a-d : screen-corner
        misconvergence

a

b

c

d

a to d : Conv. Correct

Fix a Conv. Correct 
corresponding to the
misconverged areas 

– 12 –

1. Set the  PICTURE to Normal.
2. Put the VIDEO input mode without signals
3.  Connect R,G,B of the  C board cathode to the

oscilloscope.

4. Adjust cathode voltage to the value below.
5. Adjust G2 (screen) on the FBT until picture shows the

point before cut off.

Cathode setting voltage:
170 V 

± 2 (VDC)

FOCUS adjustment should be completed before W/B
adjustment.

(Except 34")
1. Receive digital monoscope pattern.
2. Set "Picture Mode" to "DYNAMIC".
3. a) Adjust focus VR so that the center of screen

becomes just focus(29", 34").

b) Adjust focus VR so that the lion teeth

becomes just focus(25").

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.

Focus

Screen

1. Set to Service Mode (Refer Section 3-1:

ADJUSTMENTS WITH COMMANDER).

2. Input white raster signal.
3. Set Picture to DYNAMIC.

i. Set PICT 006 WTS to 00h (all models except AR2

series).

ii. For AR2 set OPTB 006 OPB 6 to 00.

4. Select WHBL 002"RDRV" and adjust the value to 37
5. Select WHBL 003"GDRV" and 004 "BDRV"and adjust

the data for the best white balance in highlight
condition.

6. Adjust WHBL 000 "BKOR" and 001 "BKOG"and adjust

the data for best white balance cut-off condition.

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

-

.

8. Write offset data for other mode.

After adjustment, please reset:
i. OPTM 006 – OPB 6 to original data (AR2 series).
ii. PICT 006 – WTS to original data (All models except

AR2 series)

Adjust

Offset

Offset

18000

t 12363 t 9300

BKOR

–2

–3

BKOG

+1

+2

RDRV

0

0

GDRV

–3

–8

BDRV

–8

–18

SUB BRIGHT ADJUSTMENT
1. Set to service mode.
2. Brightness set to 50%, Picture: Minimum.
3. Select WHBL SBRT with 

1

 and 

4

, and adjust 'SBRT'

data with 

3

 and 

6

 so that the third stripe from right

dimly lit.

4. Write into the memory by pressing [MUTING] then 

-

.

5. Models cut-off: 0 IRE (25" and 34")

10 IRE (29")

Slightly Glimmer: 10 IRE (25" and 34")

20 IRE (29")