Deflection Adjustment - Sony KV-AR252M61 Trinitron Service Manual

YOUTPUT LEVEL ADJUSTMENT
(AR2 series only)
1. Input a color with bar with 100IRE white signal to pin
1 (CVBS) of CN2001 BC board.
2. Set to service mode and select 3D NR Bus data with
and of the commander.
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3. Press [MUTING] t
to write the data to TC90A88F.
-
PICTURE CONFIRMATION
(AR2 series only)
1. Input a color bar with 100IRE white signal to pin 1
(CVBS) of CN2001 BC board.
2. Confirm no dot structure can been seen and the
picture is normal on the screen.
3. Input signal RAMP to pin 1 (CVBS) of CN2001 BC
board.
4. Confirm no vertical stripes, no noise can be seen and
the picture is normal on the screen.
5. Adjust RV2001 (BC board) so that the output level of
CN2001 (BC board) pin 3 (YOUT) is within spec

3-4. DEFLECTION ADJUSTMENT

H-TRAPEZOID ADJUSTMENT
1. Receive cross hatch/dot signal
2. Adjust RV1801 on C-Board to make H-Trapezoid
NORMAL MODE (50Hz)
1. Set to Service Mode.
2. Input SPCB Signal (For NTSC models select Video
3. Using the
1.4 ± 0.05 Vpp
4. For Korea models only:
WIDE MODE (50Hz)
(V-Compression Adjustment)
1. Input SPCB signal(For NTSC models select Video
2. Adjust condition to WIDE MODE : ON.
3. Copy (item from NORMAL MODE (50Hz) adjusted
– 31 –
distortion best.
Mode)
and buttons select category GEO
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(service mode) Raise/lower data using the
buttons to adjust the following items:-
Service Item
GEOM: 000 HPOS HORIZONTAL SHIFT (HS)
001 HPAR HORIZONTAL
PARALLELOGRAM
002 HBOW HORIZONTAL BOW
003 VLIN VERTICAL LINEARITY
004 VSCR VERTICAL SCROLL
005 HSIZ EW WIDTH (EW)
006 EWPW EW PARABOLA/WIDTH
(PW)
007 UCOP EW UPPER CORNER
PARABOLA
008 LCOP EW LOWER CORNER
PARABOLA
009 EWTZ EW TRAPEZIUM
010 VSLP VERTICAL SLOPE (VS)
011 VSIZ VERTICAL AMPLITUDE
012 SCOR S-CORRECTION (SC)
013 VPOS VERTICAL SHIFT (VSH)
014 HBL RGB BLANKING MODE
015 WBF TIMING OF WIDE
BLANKING (WBF)
016 WBR TIMING OF WIDE
BLANKING (WBR)
017 SBL SERVICE BLANKING
018 COPY COPY THE GEO DATA TO
ALL 50/60Hz NVM AREA
a) For GEOM items, copy adjusted 60Hz to 50Hz
b) Add 6 steps to 50Hz "HPOS" item and save data.
c) Add 3 steps to 50Hz "HSIZ" item and save data.
mode)
data for the following items:
Service Item
GEOM: 003 VLIN VERTICAL LINEARITY
005 HSIZ EW WIDTH (EW)
011 VSIZ VERTICAL AMPLITUDE
012 SCOR S-CORRECTION (SC)
KV-AR252M61
RM-W102
and
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