KD-34XBR2 - Sony TV Service Manual (repair manual). Page 13

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KD-34XBR2
3-2.  RASTER CENTER ADJUSTMENT
Perform this adjustment when any of the following have been 
replaced in the unit, CRT, Defl ection Yoke or D Board.
EQUIPMENT:
 
NTSC generator with monoscope pattern or white raster into
Video-1 input.
SET-UP CONDITION:
 
Display Mode: FULL (NTSC)
 
Picture Mode: STANDARD (select the STANDARD mode from the 
menu, then press the RESET button on the remote control to set the 
STANDARD settings to the factory settings.)
 
Tilt Correction: Set to Zero (0) 
 
Vertical Correction: Set to Zero (0)
PROCEDURE:
1.  Enter the service mode.
2.  Select the following adjustment items and set their data as follows.
 
NOTE:  DO NOT WRITE THE DATA TO MEMORY!  To be safe, write 
down the existing data values before changing them.
Device Name 
Adj. Item # 
Name 
Data
2150P-2  
AGNG 
2
2150D-3  
HBLK 
0
2150D-2  
HSIZ 
20 
2150D-2  
HPOS 
48
2150D-2  
16 
LANG 
31
2150D-2  
18 
LBOW 
31
2150D-2  
HCEN 
33
3.  Center the raster between the left and right sides of the bezel.  The 
sides of the shrunken raster might not be straight at this point, so 
use the sides of the raster at the half-way point between the top and 
bottom to judge when the raster is centered. 
Device Name 
Adj. Item # 
Name 
Data
2150D-2  
HCEN 
*
 
* Adjust so that the raster is centered
4.  Make a note of the data that was set in step 3.
5.  Return all of the items adjusted in step 2 to their previous settings, 
as follows:
 
1)  Press the “0” button (“READ” appears in green letters at the top 
right corner of the screen).
 
2)  Press the “ENTER” button (“READ” changes from green to red, 
and “READ” will change to “SERVICE”).
6.  Re-enter the horizontal centering data from step 3, then write it to 
memory as follows.
Device Name 
Adj. Item # 
Name 
Data
2150D-2  
HCEN 
*
 
* Use the HCEN data from step 3, and then do the following:
 
1)  Press the “MUTE” button (“WRITE” appears in green letters at the 
top right corner of the screen).
 
2)  Press the “ENTER” button (“WRITE” changes from green to red, 
and “WRITE” will change to “SERVICE”).
 
Note:  The raster horizontal centering adjustment data for the 
FULL mode is automatically used for the other display 
modes as well (NORMAL, ZOOM, WIDE ZOOM, and TWIN 
mode).  Do not change the raster horizontal centering 
adjustment data in any of these display modes.
This completes the raster center adjustment.
               
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