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Model
KP-43T90 KP-48V90 KP-53V90 KP-61V90
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95
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6.48 MB
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PDF
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Service Manual
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Device
TV
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kp-43t90-kp-48v90-kp-53v90-kp-61v90.pdf
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Sony KP-43T90 / KP-48V90 / KP-53V90 / KP-61V90 Service Manual ▷ View online

— 21 —
KP- 43T90 / 48V90 / 53V90 / 61V90
2-10. REGISTRATION ADJUSTMENT (PJE) 
FUNCTION OF BUTTONS OF REMOTE 
COMMANDER FOR PJE MODE ONLY.
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.
SETUP FOR ADJUSTMENT
•  Current fl ow 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.
 
    
 
: middle
NOTE: The following steps # 1 through 8 are “main” defl ection 
adjustments for sizing and centering.  “Main” defl ection adjustments 
affect all three CRTs at the same time.   The “sub”-defl ection adjustments 
that follow are made for each CRT individually.  If the centering and 
sizing is performed correctly in “main” defl ection adjustments, only minor 
touchups may required for the green CRT in “sub”-defl ection adjustment 
mode.
A pattern from an external pattern generator must be used for the main 
defl ection 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.  
Confi rm 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.  
Confi rm 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.
    
 
PJE            00        00
FDIS      
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 
fi ne adjustment mode.
 
    
 
PJE            00        01
FDIS      
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.
 
    
 
GRN          ###    ###
CENT     
(H)
(V)
*:  In the factory preset, “GRN CENT” appears on the screen fi rst. To 
change the color to red or blue, press the 3 key.
— 22 —
KP- 43T90 / 48V90 / 53V90 / 61V90
13. Cover the red and blue picture lenses with lens caps to allow only 
green to show, or use the method shown in the note below to turn 
the CRTs off individually.
Adjustment type
Display
Adjustment item
G
R
B
H/V*
H/V*
H/V*
CENT
CENTER
-/-
O/O
O/O
SKEW
SKEW
O/O
O/O
O/O
SIZE
SIZE
-/-
O/O
O/O
LIN
LINEARITY
-/-
O/-
O/-
KEY
KEY STONE
-/-
-/O
-/O
PIN
PIN CUSHION
-/O
-/O
-/O
* H = Horizontal  V = Vertical    O = Yes    - = No
Note: If lens caps are unavailable, you can cut off the unnecessary color 
beams in the service mode by individually changing the data from “1” 
to “0” in category VPNT, item 28 RON (red), item 29 GON (green), or 
item 30 BON (blue).
2-11. GREEN REGISTRATION ADJUSTMENT
GREEN CENTER, GREEN SIZE
The sizing and centering that was performed in the previous section 
(section 2-10) should have correctly sized and centered the green CRT.   
The sizing and centering (coarse adjustment mode) of the red and blue 
CRTs in following sections are performed so that the red and blue 
patterns overlay the green pattern as close as possible prior to the fi ne 
mode adjustments.  The fi ne-mode adjustments are made for all 3 colors 
so that the cross-hatch lines are straight vertically and horizontally, and 
the linearity and convergence is correct.  
GREEN SKEW
1. Display a cross-hatch pattern from an external generator.
2. Confi rm that category “PJE” is selected (refer to step 9 in the previous 
section, section 2-10).
3. Make sure that only the external pattern is displayed.  If the internal 
cross-hatch is displayed, press the 6 button on the remote until only 
the external pattern is displayed. 
4. Select GRN SKEW with the 1 and 4 buttons on the remote 
commander.
5. Using the joystick buttons on the remoter commander, adjust the 
crosshatch lines so that they go straight vertically and horizontally, 
not slanting.
                   
   
 
 
                             
GRN
SKEW
000
000
6. Press “MUTING” then “ENTER” to write the new adjustment data into 
memory.
GREEN PINCUSHION
1. Select GRN PIN with the 1 and 4 buttons on the remote commander.
2. Adjust the top and bottom crosshatch lines so that they are straight.
    
   
   
    
 
GRN
PIN
XXXX
000
Note: These are required when either severe misadjustment or data loss 
has occurred.
3. Press “MUTING” then “ENTER” to write the new adjustment data into 
memory.
GREEN FINE ADJUSTMENT
Press “MUTING” then “ENTER” often during the fi ne adjustment mode to 
save the adjustment data.
1. Press the 6 button until the external pattern disappears and the TV’s 
internal cross-hatch pattern appears.
2. Press the 9  button on the remote commander to shift to the fi ne 
adjustment mode. The green cursor will appear in the center of the 
screen.
3. Use the 1 and 4 buttons on the joystick on the remote commander to 
move the cursor (see below) to each area of the screen that you want 
to adjust, and adjust with the joystick arrow buttons on the remote.
Cursor movement by the 1 and 4 keys:
    
 
Alternative method of moving the cursor.
Press the joystick center button once which will cause the cursor to 
change from green to white.  When the cursor is white you can move it up 
or down, left or right, by using the joystick arrow buttons.
 
 
 
4.  Press the joystick center button once; the cursor will return to 
green  (or red or blue, depending on the previously selected color).  
When the cursor is green, you can adjust the geometry of the area 
surrounding the cursor by using the joystick arrow buttons.   
— 23 —
KP- 43T90 / 48V90 / 53V90 / 61V90
5. Press the 9 button on the remote commander to return to the coarse 
adjustment mode.  If you need to return to the fi ne mode, just press 
the 9 button again, and the cursor will change from white to green 
or blue or red.
6. After the green lines are all straight, press “MUTING” and then 
“ENTER” to save the adjustment data.
2-12. RED REGISTRATION ADJUSTMENT
RED CENTER, SKEW
1. Cover the blue picture lens with a lens cap to allow green and red to 
show (or use the method shown in the note below).
2. Press the 3  button on the remote commander to change  the GRN 
mode to the RED mode.
3. Select RED CENT or RED SKEW with the 1 and 4 buttons on the 
remote commander and adjust while tracking each one alternately.
4. Adjust the red crosshatch lines using the joystick arrow buttons, so 
that they are straight vertically and horizontally, and overlap the green 
lines.
5. Press “MUTING” and then “ENTER” to save the adjustment data.
Note: If lens caps are unavailable, you can cut off the unnecessary color 
beams in the service mode by individually changing the data from “1” 
to “0” in category VPNT, item 28 RON (red), item 29 GON (green), or 
item 30 BON (blue).
RED SIZE, LINEARITY
1. Alternately select RED SIZE (vertically and horizontally) or RED LIN 
(vertically) with the 1 and 4 buttons on the remote commander and 
adjust while tracking each one alternately.
2. Adjust the red crosshatch lines with the joystick on the remote 
commander until they are straight vertically and horizontally and they 
overlap the green lines.
RED KEY, PINCUSHION
1. Select RED KEY or PINCUSHION with the 1 and 4 buttons on the 
remote commander and adjust each one while tracking each other.
2. Using the joystick arrow buttons, adjust the red crosshatch lines so 
that they are straight horizontally and vertically, and they overlap the 
green lines.
Note: These are required when either severe mis-adjustment or data 
loss occurred.
3.  Press “MUTING” and then “ENTER” to save the adjustment data. 
FINE ADJUSTMENT
1. Press the  9 button on the remote commander to shift to the fi ne 
adjustment mode; the red cursor appears at the center of the screen.  
If the cursor is not red, press the 3 button until it is red.
2. Use the 1 and 4  buttons on the remote commander to move the 
cursor to each area of the screen you want to adjust.
3. Press “MUTING” and then “ENTER” to save the adjustment data.
2-13. BLUE REGISTRATION ADJUSTMENT
1. Remove the lens cap from the blue picture lens to show all colors (or 
use the method shown in the note above to turn on all 3 CRTs).
2. Press the 3  button on the remote commander to shift the RED mode 
to the BLU mode.
3. Adjust BLU CENT, BLU SKEW, BLU SIZE, BLU LIN, BLU KEY and 
BLU PIN the same way as the red registration adjustment.
FINAL CHECK- IMPORTANT
This must be performed before leaving the service mode!
1. Store the fi nal adjustment data by pressing MUTING and then 
ENTER.
2. Press the FLASH FOCUS button on the front panel.
3. If an error message appears, refer to the following.
If an error code is displayed after the set has been correctly adjusted, 
check the following items: position, tilt and sizing.  If any of these 
adjustments are off, even slightly, the auto-registration pattern will not 
hit the four sensors properly. This occurs when the internal generator 
patterns are being fl ashed on the screen for the sensors to read.  
Therefore, auto registration (called auto-focus) cannot operate properly,  
causing an error code to be displayed. In order for this function to operate 
properly, position, tilt and size must be adjusted properly.
Note: In case of replacing CRTs, adjust the set-up adjustments (items 
2-1 to 2-8) and the registration adjustment (item 2-10).  In the case 
of replacing multiple CRTs at the same time, replace and adjust them 
individually.
— 24 —
KP- 43T90 / 48V90 / 53V90 / 61V90
SENSOR POSITION
• ERROR CODE SCREEN DISPLAY
*  Error code will be displayed at the center of screen for 3 seconds.
E 11 B
E 11 B
R. G. B
SENSOR NUMBER
ERROR CODE 10
ERROR
3
0
1
2
SCREEN
0 : UPPER SENSOR
1 : LEFT SENSOR
2 : RIGHT SENSOR
3 : LOWER SENSOR
• ERROR CODE DISPLAY DURING AUTO-REGISTRATION IN SERVICE MODE
PJE            2 9             1 4 0
ERR            
ITEM NUMBER-29
ERROR CODE 40
SENSOR NUMBER
(ONLY "10"or "20")
R.G.B
G-0 (Blank)
R-1
B-2
2-14. AUTO REGISTRATION ERROR CODE LIST
If an error code is displayed after the set has been correctly adjusted, check the following items: position, tilt and sizing.  If any of these adjustments are 
off, even slightly, the auto-registration pattern will not hit the four sensors properly. This occurs when the internal generator patterns are being fl ashed 
on the screen for the sensors to read.  Therefore, auto registration (called auto-focus) cannot operate properly, causing an error code to be displayed. In 
order for this function to operate properly, position, tilt and size must be adjusted properly.
ERROR CODE LIST
* Check the convergence yoke driver ICs.
* Convergence patterns displayed are out of normal range.
ERROR
CODE
DESCRIPTION
NOTE
00
No Error
10
Sensor Output Level Low
* Check wiring, beam position, sensor
0 : Upper Center
1 : Middle Left
2 : Middle Right
3 : Lower Center
20
Sensor Output Level High
* Check OP-amp circuit
0 : Upper Center
1 : Middle Left
2 : Middle Right
3 : Lower Center
30
Adjustment Loop Counter Overflow
* Check the registring information on the convergence board
40
Regi Data Overflow
50
Regi Data Overflow
60
Offset Overflow
70
Offset Overflow
*  In the case of multiple errors, last error is displayed.
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