Read Sony KV-21FS140 (serv.man4) Service Manual online
KV-21FS140
KV-21FS140
19
12. For single system model with NTSC 4.43, select TV channel with
NTSC 4.43 and repeat items (3) to (8)
The highest level of V
B1
, V
B2
, V
B3
, V
B4
must be aligned at the same time.
The ideal difference between
V
B2
and V
B3
is within
± 80mV
VB1
VB2
VB3 VB4
80mV
13. Once adjustment is completed in Video mode, carry out adjustment
in DVD mode. Set TV to DVD mode. Input NTSC 3.58 CB to DVD
set and perform steps 4 to 9 and 11.
set and perform steps 4 to 9 and 11.
Sub Bright Adjustment
1. Set TV to RF mode.
2. Input PAL monoscope to RF mode.
3. Set Brightness 50% and Picture to “MINIMUM”.
4. Press
1 (or 4 ) to select WHBL 010 “SBRT”.
5. Press
3 to increase the data value, or 6 to decrease the data value
so that the cut-off level is 10 IRE, slightly glimmer: 20 IRE.
6. Press
MUTING then 0 to write into memory.
Geometry Adjustment
Geometry adjustment must be done for both color systems PAL and
NTSC.
NTSC.
General Setting
1. Input Monoscope or Special Color Bar (SPCB) signal using a
pattern generator.
2. Access
Service
Mode.
3. Select the category item that needs adjusting by pressing 1 or 4
4. Press
3 to increase the data value, or 6 to decrease the data
value.
5. Press
MUTING then 0 to write into memory.
NOTE: Geometry Adjustment must be performed for 4 different modes:
PAL 50Hz NORMAL MODE,
PAL 50Hz WIDE MODE,
NTSC
60Hz
NORMAL
MODE,
NTSC
60Hz
WIDE
MODE.
PAL 50HZ NORMAL MODE
1. Input PAL signal 50Hz in the Service Mode.
2. Set Wide Mode to “OFF”.
3. Perform the below adjustments using the “General Setting”
sequence.
Item No.
Function
Illustration
GEOM 013
Vertical Shift
(VPOS)
GEOM 011
Vertical Amplitude
(VSIZ)
Note: Adjust VSIZ to
12.4
±
(SPCB)
11.3
±
(PAL Monoscope)
11.5
±
(NTSC Monoscope)
GEOM 000
Horizontal Shift
(HPOS)
GEOM 009
EW Trapezoid
(EWTZ)
GEOM 005
EW Width (EW)
(HSIZ)
Note: Adjust HSIZ to
16.4
±
(SPCB)
14.6
±
(PAL Monoscope)
15.3
±
(NTSC Monoscope)
GEOM 002
Horizontal Bow
(HBOW)
GEOM 006
EW Parabola/Width
(EWPW)
(PW)
GEOM 007
EW Upper Corner
(UCOP)
Parabola
GEOM 008
EW Lower Corner
(LCOP)
Parabola
GEOM 001
Horizontal
(HPAR)
Parallelogram
GEOM 012
S-Correction(SC)
(SCOR)
GEOM 003
Vertical Linearity
(VLIN)
GEOM 004
Vertical Scroll
(VSCR)
4. After completing the adjustments for PAL 50Hz NORMAL MODE,
set Wide mode to “ON”, and copy all PAL 50Hz NORMAL MODE
adjusted data to PAL 50Hz WIDE MODE except VSCR.
adjusted data to PAL 50Hz WIDE MODE except VSCR.
5. Complete the adjustment for NTSC 60Hz NORMAL MODE.
6. Set Wide mode to “OFF”.
7. Complete the adjustment items listed in the above table using the
“General Setting” sequence.
8. After completing the adjustments set Wide mode to “ON” and copy
all NTSC 60Hz NORMAL MODE adjusted data to NTSC 60Hz
WIDE MODE except VSCR.
WIDE MODE except VSCR.
9. After completing all the adjustments, reconfi rm VSIZ and VPOS.
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