KP-53V100 - Sony TV Service Manual (repair manual). Page 22

ENTER

Adjustment

item up

Adjustment

item down

TV Power ON

Color Select

GRN to BLU to RED

Test signal select crosshatch + 

video signal dots + video signal 

crosshatch + black dots and black off

Mode select

(Course adjustment

Fine adjustment)

READ*

data up/down

Resetting the set to the factory shipping condition:  Press 8. 

“RESET” appears in green letters on the screen.  Then press ENTER.  

This resets all customer adjustments, channel memories, and channel 

labels to the factory shipping settings. 

Note: Internal patterns are used for geometry and convergence 

adjustments.  However, sizing and centering must be done with the 

use of an external generator.  The recommended pattern would be a 

monoscope, or equivalent pattern, which would provide the means to 

adjust both the linearity and the sizing of the picture.  A cross-hatch 

pattern with sizing markers can be used in place of a monoscope.

•  Current flow in circuit should be stable before attempting adjustment. 

Wait 5 minutes after turning on power to the set.

•  At the 4 sides of the screen, locate the middle. Use a tape measure to 

identify the middle.

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NOTE: The following steps # 1 through 8 are “main” deflection 

adjustments for sizing and centering.  “Main” deflection adjustments 

affect all three CRTs at the same time.   The “sub”-deflection adjustments 

that follow are made for each CRT individually.  If the centering and 

sizing is performed correctly in “main” deflection adjustments, only minor 

touchups may required for the green CRT in “sub”-deflection adjustment 

mode.

A pattern from an external pattern generator 

must be used for the main 

deflection adjustments.

1. Enter the service mode by quickly pressing the keys on the remote 

commander in the standby mode in the following order:

  Press “DISPLAY,”  5, Volume +, and then “TV POWER”
2. Change from TV mode to video input mode.
3. Input a cross-hatch pattern from an external generator that allows you 

to properly center and size (over-scan) the pattern.  

4. Select adjustment category “VPNT”, adjustment item 0 “VPOS”.  

Adjust the data so that the external pattern is centered vertically.

5. Select adjustment category “VPNT”, adjustment item 1 “VSIZ”.  Adjust 

the data so that the external pattern is correctly sized vertically.  

“Correctly  sized” means that the picture is overscanned by 7.5%, 

i.e. only 92.5% of the picture is on the viewable area of the screen.  

Confirm that the pattern is still correctly centered vertically.

6. Select adjustment category “VPNT”, adjustment item 5 “HPOS”.  

Adjust the data so that the external pattern is centered horizontally.

7. Select adjustment category “VPNT”, adjustment item 6 “VSIZ”.  Adjust 

the data so that the external pattern is correctly sized horizontally.  

“Correctly  sized” means that the picture is overscanned by 7.5%, 

i.e. only 92.5% of the picture is on the viewable area of the screen.  

Confirm that the pattern is still correctly centered horizontally.

8. Write the new sizing and centering data to memory by pressing 

“MUTING” and then “ENTER”.

9. Change the VPNT mode to  “PJE 00 FDIS” (press “2” on the remote 

until “PJE” appears on the top left corner of the screen).  If “FDIS” is 

not displayed below “PJE”, press “4” until it does appear.

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10. Press the remote joystick button up arrow to set the FDIS data to 

“01” to display the registration data of each area of the screen in the 

fine adjustment mode.

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11. Press 6 to display the test signal (crosshatch) on the screen.
12. Select GRN CENT(*) with the  1 and 4  keys on the remote 

commander.

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*:  In the factory preset, “GRN CENT” appears on the screen first. To 

change the color to red or blue, press the 3 key.