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High voltage remains in the CRT even
after the power is disconnected. To
avoid electric shock, discharge CRT
before attempting to remove the anode
cap. Short between anode and CRT
coated earth ground strap.

WARNING:  High voltage remains in the CRT even after the power is disconnected. To avoid electrical shock, discharge the CRT before

attempting to remove the anode cap. Short between anode and coated earth ground strap of CRT.

NOTE: 

After removing the anode, short circuit the anode of the picture tube and the anode cap to either the metal chassis, CRT shield,
or carbon painted on the CRT.

Do not use sharp objects which may cause damage to the
surface of the anode cap. 

Do not force turn the foot of the rubber cover. This may cause
the shatter-hook terminal to protrude and damage the rubber. 

To avoid damaging the anode cap, do not squeeze the rubber 
covering too hard. A material fitting called a shatter-hook terminal
is built into the rubber. 

Use your thumb to pull the rubber
cap firmly in the direction indicated
by arrow  

 . 

When one side of the rubber cap
separates from the anode button,
the anode cap can be removed by
turning the rubber cap and pulling
it in the direction of arrow  

 .

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

 .

Tension Spring

Two DGC holders (M)

Four Screws

(Tapping screw 7)

Anode Cap

A board

Cushion

E board

Picture tube

C / CV 

board

HV board

K board

Degaussing Coil

Deflection Yoke

(KV-29AL66/29AL66C/
27S66/29AL42/
29AL42C)

(KV-29AL66/29AL66C/
29AL42/29AL42C)

(KV-29AL66/29AL66C/
29AL42/29AL42C)

Coated Earth
Ground Strap

Before beginning adjustment procedure:

1. Degauss the entire screen.

2. Feed in the white pattern signal.

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. Turn the raster signal of the pattern generator to green.

4. Move the deflection yoke backward and adjust the purity

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

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

entire screen becomes green.

6. Switch over the raster signal to red and blue and confirm

the condition.

7. When the position of the deflection yoke is determined,

tighten it with the deflection yoke mounting screw.

8. If landing at the corner is not right, adjust by using the

disk magnets.

b

a

c

d

d

b

c

Purity control

corrects this area

Disk magnets

or rotatable disk
magnets correct

these areas (a-d)

Deflection yoke positioning

corrects these areas

a

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

These adjustments should be performed with rated
power supply voltage unless otherwise noted.

Set the controls as follows unless otherwise noted.

VIDEO MODE: STANDARD

PICTURE control: ................ Normal
BRIGHTNESS control ......... Normal

Perform the adjustments in order as follows:

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

Note: Test equipment required:

• Color bar pattern generator
• Degausser
• DC power supply
• Digital multimeter

Purity Control

If the blue dot does not converge with the red and green dots,
perform the following:

1. Move BMC magnet (a) to correct insufficient H. Static

convergence.

2. Rotate BMC magnet (b) to correct insufficient V. Static

convergence.

3. After adjusting the BMC magnet, repeat Beam Landing

Adjustment.

PURITY

V. STAT

BMC MAGNET

b

a

BMC magnet

Before performing this adjustment, perform Horizontal
and Vertical Static Convergence Adjustment.

1. Slightly loosen deflection yoke screw.

2. Remove deflection yoke spacers.

3. Move the deflection yoke for best convergence,

as shown below:

R G B B G R

R G B

R

R

R

G

B

G

B

G

B

R G B

B G R

R
G

B

R

G

B

B G R R G B

4. Tighten the deflection yoke screw.

5. Install the deflection yoke spacers.

Before starting convergence adjustments:

1. Perform FOCUS, V.LIN AND V.SIZE adjustments.

2. Set BRIGHTNESS control to minimum.

3. Feed in dot pattern.

1. Adjust V.STAT magnet to converge red, green and blue

dots in the center of the screen. (Vertical movement)

B

G

R

Center dot

R   G   B

V.STAT magnet

2. Tilt the V.STAT magnet and adjust static convergence to

open or close the V.STAT magnet.

 

When the V.STAT magnet is moved in the direction of
arrows a  and b , red, green, and blue dots move as shown
below:

a

b

b

B

G

R

a

b

B

G

R

a

B

G

R

R

G

B

b

R

G

B

b

b

a

R

G

B

(1)

(3)

(2)

1. Affix a permalloy assembly corresponding to the

misconverged areas.

b

a

c

d

a

b

d

a-d: screen-corner

misconvergence

c

1. Adjust FOCUS control for best picture.

1. Input a dots pattern.

2. Set the PICTURE and BRIGHTNESS controls at minimum

and COLOR control at normal.

3. Adjust SBRT, GCUT, BCUT in service mode with an

oscilloscope as shown below so that voltages on the red,
green, and blue cathodes are 170 VDC.

 

Pedestal

170 VDC 

Ground

4. Observe the screen and adjust SCREEN (G2) VR in FBT

to obtain the faintly visible background of dot signal.

1. Standby mode (power off).

2. 

Display

Channel 5

Sound volume

Power

+

on the Remote Commander (press each button within a
second).

1. The CRT displays the item being adjusted.

Disp.

(Item)

Item

Data

2. Press 

 or 

 on the Remote Commander to select the

item.

3. Press 

 or 

 on the Remote Commander to change the

data.

4. Press 

 then 

 to save into the memory.

Turn set off then on to exit service adjustment mode.

Green

Red

1. Input an entire white signal with burst.

2. Set to Service Adjustment Mode.

3. Set DCOL to “0”.

4. Set the PICTURE and BRIGHTNESS to minimum.

5. Adjust with SBRT if necessary.

6. Select GCUT and BCUT with 

 and 

 .

7. Adjust with 

 and 

 for the best white balance.

8. Set PICTURE and BRIGHTNESS to maximum.

9. Select GDRV and BDRV with 

 and 

 .

10. Adjust with 

 and 

 for the best white balance.

11. Reset DCOL to “1”.

12. To write into memory, press 

 then 

 .