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25

Center dot

R

G

B

H.STAT

V.STAT Magnet

R

G

B

RV702
Screen

C Board

RV701
H Stat

•

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

•

Minimize the Brightness setting.

•

Input a dot pattern from the pattern generator.

1.

[Moving horizontally], adjust the H.STAT control so that the
Red, Green and Blue points are on top of each other at the
centre of the screen.

2.

[Moving vertically], adjust the V.STAT magnet so that the 
Red, Green and Blue points are on top of each other at the 
centre of the screen.

3.

If the H.STAT variable resistor is unable to bring the Red,
Green and Blue points together at the centre of the screen,
adjust the horizontal convergence with the H.STAT variable 
resistor and the V.STAT magnet in the manner indicated below.
[In this case, the H.STAT variable resistor and the V.STAT
magnet influence each other].

•

Tilt the V.STAT magnet and adjust the static convergence
by opening or closing the V.STAT magnet.

4.

If the V.STAT magnet is moved in the direction of the    a
and   b   arrows, the Red, Green and Blue points move as
indicated below.

26

BMC (Hexapole)

V.STAT

Purity

R G

B

R

G

B

R

G

B

R

G

B

R

G

B

R

G

B

R

G

B

B

G

R

R

G

B

B

G

R

B

G

R

R

G

B

R

G

B

B

G

R

Tilt Direction

•

Operation of the BMC (Hexapole) magnet.

•

The respective dot position resulting from moving each 
magnet interact, so be sure to perform adjustment whilst
tracking.
Use the H.STAT VR to adjust the Red, Green and Blue dots
so that they coincide at the centre of the screen
(by moving the dots in the horizontal direction).

•

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

1.

Remove the deflection yolk spacer.

2.

Tilt the deflection yolk as indicated in the figure below and
optimize the convergence.

3.

Re-install the deflection yolk spacer.

This adjustment will affect the geometry of the 
display, therefore adjust to obtain the optimum
setting.

27

a-d: screen-corner
convergence defect

a

b

c

d

c

a

d

b

Install the permalloy assembly
for the area that needs correcting.

Permalloy.

Focus

•

If you are unable to adjust the corner convergence properly, 
correct them with the use of permalloy assemblies.

1.

Switch the TV set into AV mode [apply a cross-hatch signal].

2.

Enter into the ‘Service mode’ and select ‘Picture Control’.

3.

Enter ‘Picture Control’ and select ‘Personal’ press OK.

4.

Return to ‘Picture Control’ menu and select ‘Reset’.

5.

Measure the voltages on the 3 cathodes of the CRT, Kr,Kg 
and Kb using an oscilloscope with a 100:1 probe.

6.

Connect the oscilloscope to the CRT cathode which recorded 
the highest voltage and adjust [RV702 SCREEN] to obtain a 
reading of 175V.

1.

Input an all white signal from the pattern generator.

2.

Enter into the Service Mode.

3.

Enter into the ‘Picture Adjustment’ service menu.

4.

Select ‘Sub contrast’ and adjust to 7.

5.

Select the ‘Green drive’ and adjust so that the white balance
becomes optimum.

6.

Select the ‘Blue drive’ and adjust so that the white balance
becomes optimum.

7.

Press the ‘TV’ button on the remote commander to return to
TV operation.

1.

Receive a television broadcast signal.

2.

Normalise the picture setting.

3.

Adjust the focus control on the flyback transformer for the 
best focus at the centre of the screen.
Bring only the centre area of the screen into focus, the magenta 
ring appears on the screen. In this case, adjust the focus to 
optimize the screen uniformly.

PICTURE ADJUSTMENT

AFC mode

1

REF position

2

SCP BGR

1

SCP BGF

1

Trap fo

0

Sub contrast

Adj

Sub colour

Adj

Sub brightness

Adj

Sub hue

Adj

Green drive

Adj

Blue drive

Adj

Green cutoff

Adj

Blue cutoff

Adj

Gamma

0

Pre / overshoot

0

Y delay

3

28

5

+

+

(ON SCREEN
 DISPLAY)

(DIGIT 5)

(VOLUME 

+

)

(TV)

Service adjustments to this model can be performed
using the supplied Remote Commander RM-886.

1.

Turn on the main power switch and enter into the stand-by 
mode.

2.

Press the following sequence of buttons on the Remote 
Commander.

•

‘TT--’ will appear in the upper right corner of the
screen.
Other status information will also be displayed.

3.

Press ‘MENU’ on the remote commander to obtain the 
following menu on the screen.

4.

Move to the corresponding adjustment using the button on the 
remote commander.

5.

Press the + button to enter the selected adjustment.

6.

Turn off the power to quit the service mode when adjustments 
have been completed.

TEST MENU

> Picture Adjustment

   Geometry

   Wide

   IC status

   MSP

   Current TV status

PICTURE ADJUSTMENT

AFC mode

1

REF position

3

SCP BGR

1

SCP BGF

1

Trap fo

7

Sub contrast

Adj

Sub colour

Adj

Sub brightness

Adj

Green drive

Adj

Blue drive

Adj

Green cutoff

Adj

Blue cutoff

Adj

Gamma

0

Pre / overshoot

0

Y delay

5

D Pic

ON/OFF

D Colour

ON/OFF

DC Transfer

ON/OFF

GEOMETRY ADJUSTMENT - 4:3

V size

Adj

V position

Adj

S Correction

Adj

V Linearity

Adj

H size

Adj

H position

Adj

Pin Amp

Adj

Pin Phase

Adj

AFC Bow

Adj

AFC Angle

Adj

EHT V

1

EHT H

0

Lo Corn Pin

Adj

Up Corn Pin

Adj

WIDE ADJUSTMENT - 4:3

V Aspect

47

V Scroll

25

Upper V Lin

0

Lower V Lin

0

Left Blanking

1

Right Blanking

11