Read Sony KV-29FA350 Service Manual online
KV-29FA350/29FA750
KV-29FA350/29FA750
20
Geometry Adjustment
Geometry adjustment must be done for both color systems PAL and
NTSC.
NTSC.
H-Trapezoid Adjustment
1. Receive cross hatch/dot signal.
2. Adjust RV 1800 on CV Board to make H-Trapezoid distortion best/to
obtain the center illustration shown in TABLE 1.
Category
Function
Illustration
GEOM 000
H Position
(HPOS)
GEOM 001
H Parallelogram
(HPAR)
GEOM 002
H Bow
(HBOW)
GEOM 003
Linearity
(VLIN)
GEOM 005
EW Width
(HSIZ)
Note: Adjust HSIZ
16.6 + -(SPCB) _ 50Hz
14.8 + -(PAL Monoscope) _ 50Hz
15.3 + -(NTSC Monoscope) _ 60Hz
14.8 + -(PAL Monoscope) _ 50Hz
15.3 + -(NTSC Monoscope) _ 60Hz
GEOM 006
EW Parabola/Width
(EWPW)
GEOM 007
EW Upper Corner
(UCOP)
Parabola
GEOM 008
EW Lower Corner
(LCOP)
Parabola
GEOM 009
EW Trapezoid
(EWTZ)
GEOM 011
V-Amplitude
(VSIZ)
Note: Adjust VSIZ
12.6 + -(SPCB) _ 50Hz
11.3 + -(PAL Monoscope) _ 50Hz
11.7 + -(NTSC Monoscope) _ 60Hz
11.3 + -(PAL Monoscope) _ 50Hz
11.7 + -(NTSC Monoscope) _ 60Hz
GEOM 012
S-Correction
(SCOR)
GEOM 013
V-Shift
(VPOS)
TABLE 1
Normal Mode 50Hz/60Hz
1. Input PAL Special Color Bar (SPCB) or PAL Monoscope (OTHER
model) and Video mode or NTSC Monoscope (NTSC model) signal
using a pattern generator.
using a pattern generator.
2. Set Wide Mode to “OFF”.
3. Use TABLE 1 to complete the adjustments by acesssing service
mode and then selecting the category item that needs adjusting by
pressing 1 or 4 .
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.
Wide Mode
1. Input PAL Special Color Bar (SPCB) or PAL Monoscope (OTHER
model) and Video mode or NTSC Monoscope (NTSC model) signal
using a pattern generator.
using a pattern generator.
2. Set Wide Mode to “ON”.
3. Copy NORMAL MODE 50Hz/60Hz adjusted data for the following
items:
GEOM: 011 VSIZ, 010 VSLP, 012 SCOR, and 003 VLIN
4. Use TABLE 1 to adjust the data by pressing 3 to increase the data
value, or 6 to decrease the data value until the screen displays the
center illustration for all items except the following:
center illustration for all items except the following:
GEOM: 003 VLIN, 010 VSLP, 011 VSIZ, and 012 SCOR
5. Press
MUTING then 0 to write into memory.
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