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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:
•  Use cross hatch signal to rough adjust focus, G2 and then input a 

white pattern signal.

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

infl uence of geomagnetism.

•  Confi rm data in service mode to match with CRT screen size.

 

•  CXA2170D-4

 

•  CXA8070 (Should be set to default)

 

•  VCEN, VPIN, HTPZ, PPHA, VANG, LANG, VBOW, LBOW 
  (Should be set to default value).

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

to maximum, and the BRIGHTNESS control to standard.

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

to the center as shown below:

Purity Control

3.  Input a green pattern from the pattern generator.

4.  Move the defl ection yoke backwards, (See Figure 1) 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

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

becomes green. 

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

condition.

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

the defl ection yoke mounting screw.

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

a

c

b

d

b

a

c

d

Purity control

corrects this area

Disk magnets

or rotatable disk
magnets correct

these areas (a-d)

Deflection yoke positioning

corrects these areas

Preparation:
•  Input a cross hatch pattern signal.

•  Set Video Mode to: Standard (Reset)

•  For all 4X3 CRT, VPIN data has separate register for full and 

V-compress. Adjust both modes if needed.

1.  Adjust service mode CXA2170D-1 05 V-CEN so that the top pin and 

bottom pin are symmetrical from top to bottom.

2.  Adjust service mode CXA2170D-1 06 V-PIN so that the top pin and 

bottom pin are symmetrical from top to bottom.

3.  Horizontal lines should be straight from left to right.  Check landing 

for side effect.

Preparation:
•  Set the CONTRAST and BRIGHTNESS control to standard (reset).

•  Input a cross hatch pattern signal.

1.  Disconnect the dynamic convergence before adjusting static 

convergence (CN903), 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.  Connect dynamic convergence back. 

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

center of the screen.

R

G

B

Center dot

RV9001

H-STAT

V.STAT magnet

R   G   B

5.  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 BMC 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 unbalanced horizontal convergence of red and blue dots by 

adjusting the TLH Plate on the defl ection yoke.

TLH Plate

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.

•  Only H-component can be corrected, for vertical component use 

permalloy to compensate.

•  After adjusting the following parameter, write data into NVM 

MUTING  +  ENTER  then copy for 1080i CPY2 

(D Conv Item 13 - Change data to 1 then write.) 

0.  YBWU (Upper Y-BOW)

B R

B R

1.  YBWL (Lower  Y BOW)

B R

B R

2.  RSAP (Right H AMP)

R B

3.  RUBW (Right Upper BOW)

B R

4.  RUMB (Right Upper Middle BOW)

B R

5.  RLBW (Right Lower BOW)

R B

6.  RLMB (Right Lower Middle BOW)

B R

7.  LSAP (Left H AMP)

B R

8.  LUBW (Left Upper BOW)

B R

9.  LUMB (Left Upper Middle BOW)

B R

10.  LLBW (Left Lower BOW)

B R

11.  LLMB (Left Lower Middle BOW)

B R

12.  CADJ Fix 29

Confi rm neck assembly Z axis position. (See Figure 1)

1.  Input a dot signal.

2.  Set Video Mode to STANDARD.

3.  Adjust focus VR clockwise (DE-Focus) to confi rm that the dot’s shape 

is centered. (Figure 2 & 3) Confi rm neck assembly rotation by W Board 
position. W Board should be level ±1º. Adjust as necessary to balance 
dot shape along center horizontal line, then refocus.

4.  Input a HD monoscope signal.

5.  Confi rm center focus with focus VR.

FOCUS

Screen (G2)

DOT SHAPE:

NOTE: Changing neck assembly position will affect corner convergence.

Normally, no adjustments are necessary for these systems. If for some 
reason the data is lost, use the following data:

Write the data from any non-vertically compressed mode, then use the 
CPY1 function (CXA2170D-4 Item 6) to copy the data to the vertical 
compressed modes. V-compressed data is identical to non-v-compressed 
data. Service personnel with a trained eye can adjust the 
DF or DQP registers to adjust DF phase (Item 7) or DQP 
phase (Item 8), respectively, to balance left and right focus. 
Refrain from adjusting more than 5 steps from table data below. 
Further adjustment indicates a circuit problem -- troubleshoot to 
cause. Be sure that Neck Assembly is in the proper location 
(See Section 2-4 Figure 1) before changing DF/DQP data or 
troubleshooting circuit when DF/DQP is suspect.