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- 21 -

A

B

A=B=7.2 lines

A

B

A=B

Color pattern generator

Meassuring location TV screen (visual observation)

Adjustment location Remote control buttons [VOL +/-]

Crosshatch pattern

Purpose: Adjustment of amplitude and linearity of the image in horizontal direction.

Image adjustment

Standard

Image menu

Image 4 (dynamic)

Adjustment conditions

Set S551 (H. CENT) to the center.

•

 Caution items

Horizontal position adjustment
1. Set to the item [H-WID], narrow the horizontal amplitude with the 

remote control buttons [VOL +/-], and confirm the horizontal center.

2. Set to the item [H-POS].
3. Adjust with remote control buttons [VOL +/-] so that the horizontal 

center of the crosshatch pattern comes to the center of the screen.

Horizontal amplitude adjustment
4. Return to the item [H-WID].
5. Adjust with the remote control buttons [VOL +/-] so that the number 

of vertical lines of the crosshatch pattern on the left and on the right 
becomes 7.2 lines each.

Horizontal pincushion compensation adjustment
6. Set to the item [H-PIN].
7. Adjust with the remote control buttons [VOL +/-] so that the vertical 

lines on teh outside of the crossshatch pattern become straight 
lines.

Horizontal linearity confirmation and setting

Confirm that the horizontal linearity is not unbalanced.
If it is unbalabced, switch S551 (H. CENT) and set to the best 
position.
a.  When the right side of the screen is shrunk, set S551 to the 

side of the termianl board, and when the left side of the 
screen is shrunk, set S551 to the side of the flyback 

transformer.

b. When the balance is not too bad, leave S551 at the center.
c. When S551 is not set at the center, perform horizontal 

position adjustment for 4:3 mode and for 16:9 mode.

 !"

- 22 -

The adjustment procedure is the same as for 4:3 mode.

Upper and lower pincushion compensation adjustment
8. Set to the item [H-TPN].
9. Adjust with the remote control buttons [VOL +/-] so that the lines in 

the upper part of the crosshatch pattern becomes straight lines.

10. Set to the item [H-BPN].
11. Adjust with the lower part of the crosshatch pattern becomes 

straight lines.

Keystone compensation adjustment
12. Set to the item [H-KEY].
13. Adjust with the remote control buttons [VOL +/-] so that thevertical 

lines on the outside of the crosshatch pattern becomme straight 
lines.
The vertical position changes when [H-KEY] is adjusted.
Confirm [V-POS] and adjust if required.

14. Adjust the items 6. to 13. alternately until the vertical lines of the 

crosshatch pattern become vertical.

H-TPN 
(top pincushion compensation) adjustment

H-BPN 
(bottom  pincushion compensation) adjustment

A

B

Color pattern generator

Meassuring location TV screen (visual observation)

Adjustment location Remote control buttons [VOL +/-]

Crosshatch pattern

Purpose: Adjustment for 16:9 mode

1. Receive a crosshatch pattern, enter into H-V adjustment mode, and 

press the [ASPECT] button in the remote contorl operation section 
twice to set to "16:9" mode.

2. Set to adjustment values for V-HET, H-POS, V-EHT and H-EHT to 

the same vlaues as for the 4:3 mode.

3. Adjust H-WID.

Adjust the left and right vertical lines of the crosshatch pattern to 7.4 
lines each.

4. Adjust V-POS, H-PIN (Fig. 1) and H-KEY (Fig. 2). 
5. Adjust the upper and lower blanking width with V-BKU and V-BKD to 

50mm.

6. Confirm V-LIN and V-SCR and adjust if required.

A = B = 7.4 lines

C

A

D

B

C = D = 5.1 lines

A = B = 50mm

Fig. 1

Fig. 2

 !"

- 23 -

Color pattern generator

Studio color bar

Purpose: Facilitation of white balance adjustment.

1. Establish the required conditions for white balance adjustment 

according to the following table.

1: At the time of adjustment, the color signal 

is cut to facilitate white balance adjustment.

Image menu

Image 
adjustment

(Service 
adjustment 
mode)

Service adjustment item
[

]

(Color darkness) 

1

R-CUT

G-CUT

B-CUT

R-DRV

B-DRV

Screen volume

Color darkness

Hue

Black level

Picture

[0] (center)

[+30] (Max.)

[00] Min. value

[7F] center value

[00] Min. value

Min. (left side)

[00] Min. value

[00] 
Make a note of the value 
before adjustment

Image 4 (dynamic)
Color temperature (high)
Screen mode 4:3
NR OFF
Power consumption 
- Standard

0

2.45

0.05V

Color pattern generator

Meassuring location TP47G (board [A])

Adjustment location Remote control buttons [VOL +/-]

Studio color bar

Oscilloscope

1. Receive a studio color bar.
2. Set to item [S-BRT] of the adjustment mode [HW 

] 

(WB adjustment).

3. Press the remote control button "

" and make the screen one 

horizontal line.

4. Adjust with the remote control buttons [VOL +/-] so that the 

waveform fo TP47G (board [A]) becomes DC2.45 

 0.05V. 

5. Adjust the upper and lower blanking width with V-BKU and V-BKD to 

50mm.

6. Press the remote control button "

" to cancel one horizontal line.

 !"

- 24 -

Earth 0V

170V

3.0

Color pattern generator

Meassuring location TV screen (visual observation)

Studio color bar

Purpose: Optimizing the white balance (back and white) for the image.

The items "1. Preparatory adjustment" and "2. Sub-brightness 
adjustment" must have been executed.

1. Set to the item [G-CUT] of the adjustment mode [WB 

] 

(WB adjustment) and switch the input selector to video or similar for 
no input.
(In the following, the adjustment mode will be omitted in the 
explanations.)

2. Press the remote control button "

" and make the screen one 

horizontal line.
For selection of a different adjustment item, press the button "

" 

again for cancellation.

3. Connect the oscilloscope probe to TPL7 of the picture tube board [L], 

and adjust with the remote control buttons [VOL +/-] so that the 
waveform level against earth becomes DC170V 

 3.0 as shown in 

the following figure.

4. Turn the screen volume gradually to the right and adjust so that 

green just starts to shine.

5. Set to the item [R-CUT] of [WB 

] (WB adjustment).

6. Adjust with the remote control buttons [VOL +/-] so that red becomes 

as bright as green and yellow is obtained.

7. Set to the item [B-CUT] of [WB 

] (WB adjustment).

8. Adjust with the remote control buttons [VOL +/-] so that blue 

becomes as bright as green and white is obtained.

9. Turn the screen volume gradually to the left to where the three color 

horizontal line disappears.

Press the remote control button "

" to cancel the horizontal line.

11. Receive a studio color bar and either shift the fine adjustment of the 

TV or use the chroma cut of the color pattern generator to obtain a 
block-and-white screen.
If the screen is greenish, repeat the adjustment 4. to 10..

12. If the black-and-white screen is reddish, select the item [R-DRV] of 

[WB 

] (WB adjustment), and if it is bluish, select the item [B-

DRV], and then adjust with the remote control buttons [VOL +/-] so 
that a normal black-and-white screen is obtained.
Adjust [R-DRV] and [B-DRV] alternately to obtain the best condition.

Confirmation

•

Cancel the service maintenance mode.

•

Select [

] (Black level) of the menu [

] (Image 

adjustment), change the level, and confirm that a normal black-and-
white screen is obtained. Also confirm the screen brightness for all 
channels.

When the screenn is too bright (black floats) or too dark (black is 
subdued), use the remote control buttons [VOL +/-] to adjust the 
item [S-BRT] of [WB 

] (WB adjustment).

When a normal screen is not obtained, repeat the adjustments 1.
to 12..

13. Return the item [

] (Color darkness) of [

] (Sub-

adjustment) to the recorded value.

If the TV fine adjustment has been shifted, return it to the original 

setting.

# !"