TCL-THOMSON Electronics R&D Center (Shen’Zhen Lab)
Chassis Name
NX56-LA
Serial No.
Issued on
2008-05-19
Page
Page 9 of 15
Updated on
2010-01-27
Version
2.2
Screen background is black
with No signal
BriVSD 32 Brightness of horizontal line when
adjust G2
Adjust to right valuege
SUBB 32 Brightness
SubCON 32 Contrast
Same as user “Brightness”
and “Contrast” adjust
BLOR-Y 64 YUV R -OFFSET
BLOG-Y 62 YUV G-OFFSET
BLOB-Y 64 YUV B -OFFSET
64= offset value 0 63= offset
value -1 65= offset value
ˇ1 Adjust to right value
BRTC 32 BRIGHT CENTET Adjust to right value
3.5 Picture Geometry adjustment
3.5.1 Vertical geometry adjustment
1. Input a PAL crosshatch pattern signal to RF input.
2. Enter P-Mode, press key “1” to select vertical geometry adjustment. (The OSD menu
for this adjustment as below table 3.5.1. For NTSC signal, the “-50” will replace with “-60”.)
3. Adjust the value of the corresponding item to make the vertical geometry of the
pattern look good.
4. Apply NTSC signal to adjust these value for NTSC vertical geometry.
Table 3.5.1: The vertical geometry adjustment OSD menu setup and option page “1”
OSD menu Default Value Description Remark
VSLOPE-50 32 Vertical slope(VS) Adjust to right value
VCEN-50 32 Vertical shift (VSH) Adjust to right value
VSIZE-50 32 Vertical amplitude(VA) Adjust to right value
VZOOM-50 25 Vertical zoom(VX) Adjust to right value
VSC-50 32 S-correction(SC) Adjust to right value
VSCROLL-50 32
Vertical Scroll˄VCS˅
Adjust to right value
*Notes:
1. For NTSC signal, the “-50” will replace with “-60”.
2. For NTSC signal, only the “VCEN-60” and “VSIZE-60” items need the adjustment,
the other items use the same data as PAL signal.
3. On producing, please use the “AUTO OFFSET” (On page “2”) function to easy the
geometry adjustment of NTSC signal. When finished the PAL signal geometry adjustment,
press “2” key to enter page “2” to select “AUTO OFFSET” item, press “” key to active the
automatic offset function. Then the geometry adjustment of NTSC signal will finish
automated. If the geometry of NTSC signal is look good, you don’t need to adjust the
geometry of NTSC signal any more.
3.5.2 Horizontal geometry adjustment
1. Input a PAL crosshatch pattern signal to RF input.
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