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1

  Discharge the anode of the CRT and remove the 

anode cap.

2

  Unplug all interconnecting leads from the defl ection 

yoke, neck assembly, degaussing coils and CRT 
grounding strap.

3

  Remove the Speaker Assemblies.

4

  Remove the C Board from the CRT.

5

  Remove the chassis assembly.

6

  Loosen the neck assembly fi xing screw and remove.

7

  Loosen the defl ection yoke fi xing screw and remove.

8

  Place the set with the CRT face down on a cushion 

and remove the degaussing coil holders.

9

  Remove the degaussing coils.

10

  Remove the CRT grounding strap and spring tension 

devices.

11

  Unscrew the four CRT fi xing screws [located on each 

CRT corner] and remove the CRT  [Take care not to 
handle the CRT by the neck].

Coated

Earth

Ground

Strap

WARNING: 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 coated earth ground strap of CRT. 
NOTE: After removing the anode cap, 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. 

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

anode cap. 

2.  To avoid damaging the anode cap, do not squeeze the rubber covering too hard. 

A material fi tting called a shatter-hook terminal is built into the rubber. 

3.  Do not force turn the foot of the rubber cover. This may cause the shatter-hook 

terminal to protrude and damage the rubber.

2

1

3

4

5

6

7

8

9

10

11

a

b

Anode Button

c

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

Use your thumb to pull the rubber
cap fi rmly in the direction indicated
by arrow  b  .

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  c  .

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.

The controls and switch should be set as follows unless otherwise 
noted:

VIDEO MODE:  

STANDARD (RESET)

Perform the adjustments in order as follows:
 

1. 

Beam Landing

 

2. 

Convergence

 

3. 

Focus

 

4. 

Screen (G2)

 

5. 

White Balance

Test Equipment Required:
 

1. 

Color Bar Pattern Generator

 

2. 

Degausser

 

3. 

DC Power Supply

 

4. 

Digital Multimeter

Preparation:
•  Input a white pattern signal.

•  Face the picture tube in an East or West direction to reduce the 

infl uence of geomagnetism.

1.  Input white pattern from pattern generator.  Set the PICTURE control 

to maximum, and the BRIGHTNESS control to standard.

2.  Perform Focus, G2 and White Balance adjustments.

3.  Loosen the defl ection yoke mounting screw, and set  the purity control 

to the center as shown below:

Purity Control

4.  Input a green pattern from the pattern generator.

5.  Move the defl ection yoke backwards, and adjust with the purity control 

so that green is in the center and red and blue are even on both 
sides. 

Blue

Red

Green

6.  Move the defl ection yoke forward, and adjust so that the entire screen 

becomes green. 

7.  Switch over the raster signal to red and blue and confi rm the 

condition.

8.  When the position of the defl ection yoke is determined, tighten it with 

the defl ection yoke mounting screw.

9.  If landing at the corner is not right, adjust it by using the disk magnets. 

Purity control

corrects this area.

Deflection yoke positioning

corrects these areas.

Disk magnets

or rotatable disk

magnets correct

thses areas (a-d).

b

d

a

c

Preparation:
•  Input a cross hatch pattern signal.

•  Face the picture tube in a North/South direction and correct rotation.

•  Set Video Mode to: Standard (Reset)

1.  Adjust service mode CXA2150D-1 04 V-CEN so that the top pin and 

bottom pin are symmetrical from top to bottom.

2.  Adjust service mode CXA2150D-1 05 V-PIN so that the top pin and 

bottom pin are symmetrical from top to bottom.

3.  Lines should be straight from left to right.  Check landing for side 

effect.

Preparation:
•  Set the CONTRAST and BRIGHTNESS control to 50%.

•  Input HD dot pattern.

1.  Disconnect the dynamic convergence before adjusting static 

convergence (CN5510), except for minor touch-up.

2.  Adjust H.STAT convergence, RV9001, to converge red, green, and 

blue dots in the center of the screen.

3.  Adjust V. STAT magnet to converge red, green and blue dots in the 

center of the screen.

R

G

B

Center dot

RV9001

V.STAT

V.STAT magnet

R   G   B

4.  Tilt the V.STAT magnet and adjust static convergence to open or close 

the V.STAT magnet.

B

G
R

B

G
R

1

The respective dot positions result from moving each magnet interact.  
Perform the following adjustments while tracking.

1.  Use the V.STAT tabs to adjust the red, green and blue dots so that 

they line up at the center of the screen (move the dots in a horizontal 
direction).

HMC Correction

HMC Correction

R

G

B

A=B

A

B

R

G B

A>B

A

B

R

G

B

A=B

A

B

R

G

B

A<B

A

B

VMC Correction

R

G

B

C<D

C

D

R

G

B

C=D

VMC Correction

R

G

B

C<D

C

D

R

G

B

C=D

Preparation:
•  Input a cross hatch pattern signal.

•  Adjust PICTURE QUALITY to Standard, PICTURE and 

BRIGHTNESS to 50%, and OTHER to Standard.

•  Adjust unbalanced horizontal convergence of red and blue dots by 

adjusting the TLH Plate on the defl ection yoke.

TLH Plate

RV9002

RV9001

W Board

C Board

TLV

XCV

TLH+

TLH-

R B

(B)(R)

B R

(R)(B)

1.  Adjust XCV core to balance X axis.

2.  Adjust the vertical red and blue convergence with V.TILT (TLV VR).

 

Note: Perform adjustments while tracking Item 1.

Preparation:
•  Input a cross hatch pattern signal.

1.  Affi x a permalloy assembly corresponding to the misconverged areas.

d

c

a

b

a-d: screen-corner

misconvergence

a

b

c

d

Set dynamic convergence using the following service mode adjustment 
data.

1

YBWU

VCA9

0-63

31

2

YBWL

VCA10

0-63

31

3

RSAP

DC-AMP1

0-63

31

4

RUBW

VCA5

0-63

31

5

RLBW

VCA6

0-63

31

6

LSAP

DC-AMP2

0-63

31

7

LUBW

VCA10

0-63

31

8

LLBW

VCA2

0-63

31

1.  YBWU (Upper Y-BOW)

B R

B R

2.  YBWL (Bottom BOW)

B R

B R

3.  RSAP (Right AMP)

R B

4.  RUBW (Right Side Upper C-BOW)

B R

5.  RLBW (Right Side Bottom C-BOW)

R B

6.  LSAP (Left AMP)

B R

7.  LUBW (Left Side Upper C-BOW)

B R

8.  LLBW (Left Side Bottom C-BOW)

B R

1.  Input a dot signal.

2.  Set Video Mode to STANDARD.

3.  Adjust focus VR counter-clockwise to confi rm that the dot’s shape is 

centered.

4.  Input a HP monoscope signal.

5.  Confi rm center focus with focus VR.

FOCUS

DOT SHAPE:

1.   Input a monoscope pattern (NTSC).

2.  Set to service mode and adjust as follows: 

0

ALBK

ALL_BLK

0

3.  Adjust RV9002 on the C Board so that the voltage on red, green and 

blue cathodes is 170.0 0.5 V DC.

4.  Adjust the hotizontal line at the top of the screen so it is cut off.

 

Note:  Never set ALBK to 1 when external power supply is connected 

 

  

to cathode.