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3.3.4. Manual Adjustment
(1). Adjust using white balance meter and factory remote control.
(2). Enter white balance adjustment mode by press "IN-START"
key of factory remote control.
(3). Use the CHD, CHE key to choose adjustment item.
(4). Use the VOLF,VOLG Key to change item data.
(5). Adjustment Procedure
a. Make the picture luminance 45Ft-L by change the
"CONTRAST" and "BRIGHTNESS".
b. Adjust X data of high light with R DRIVE and Y data of high
light with B DRIVE to have color temperature as shown below.
c. Make the picture luminance 4.5Ft-L by change the
"CONTRAST" and "BRIGHTNESS".
d. Adjust X data of low light with R BIAS and Y data of low light
with B BIAS to have color temperature as shown below.
e. Repeat steps a~d until both low and high light have same
reading as shown below.
3.3.5. CW91A WHITE BALANCE IIC PARAMETER
(1) W/B auto adjust machine setting Table
NAME
VDC IC
EEPROM
Algorithm
(2) White balance IIC Parameter (Address)
Program
Win31_wb
TWB
VCD Slave
8A
(R)_Amp
Program
Win31_wb TWB
Win31_wb TWB
Sub Add
20
Start Bit
5
Stop Bit
0
Offset
0
Polarity
1
EPRom_S
72
2
Speed/Plus
(3) Color coordinate
Tolerance Range : Adjust within ±5 for each X,Y coordinate
ITEM
EU
N-EU
X
288
Y
295
9000
13000
Color
Temperature
(4) White Balance default setting data
ITEM
BLO-R(R CUT)
LOW
BLO-G(G CUT)
LIGHT
BLO-B(B CUT)
RG(R DRIVE)
HIGH
GG(G DRIVE)
LIGHT
BG(B DRIVE)
Copyright©2010 LG Electronics.Inc. All right reserved.
Only for training and service purposes.
MAKER
Win31_wb TWB
Eeprom_Slave
A2
(R)_Cut
G_Amp
Win31_wb
TWB
17
21
5
5
0
0
0
0
1
0
6A
68
2
2
Latin
Taiwan
America
282
268
267
288
273
276
10000
13000
Range
Default setting data
PAL
NTSC
32
32
0~63
32
32
0~63
32
32
0~63
32
32
0~63
32
32
0~63
32
32
0~63
3.5. Focus Voltage Adjustment
Adjustment must be done after operating the TV set receiver
sufficiently.
3.5.1. Adjustment Preparation
Received the LG standard pattern (PAL :Digital
Pattern,480NC,13CH, NTSC: Crosshatch pattern, Ch.09 )
and set the picture condition on "APC ON" (CLEAR) mode.
3.5.2. Adjustment Turn the focus volume on the FBT upper
direction to have the best focus vertical line and horizontal
line as shown below.
NOTE
[Fig 1] Cross-Hatch Pattern(NTSC:US 51CH, PAL:C-8 CH)
Speed
Delay
1
30
3.6. SUB-BRIGHTNESS Adjustment (Do not adjust)
G_Cut
This adjustment must be done after the White balance
Win31_wb TWB
Adjustment
18
3.6.1. Adjustment preparation
5
(1).NTSC
0
-. Received LG standard Mono scope pattern (CH14).
0
-. Set the picture condition on "APC ON" (CLEAR) mode.
(2). PAL
0
-. Received PAL B/G 5CH pattern.
6B
-. Set the picture condition on "PSM ON" (DYNAMIC) mode.
2
3.6.2. Adjustment
(1). Press the "ADJ" key of the factory remote control twice to
enter to "SUB-BRIGHTNESS" adjustment mode.
(2). NTSC MODEL: Change the Sub-Brightness data by
Philippines
pressing the VOLF,VOLG KEY so that the number 1 in
gray scale of mono scope pattern almost disappear.
266
In the ultra slim, Do until the number "1" completely
282
disappear. (See figure 2)
13000
(3). PAL MODEL: Change the Sub-Brightness data by
pressing the VOLF,VOLG KEY so that the 1th, 2th
Black Level in gray scale of PAL B/G 05CH pattern have
a little bit of difference. (See figure 3)
remark
Fixed
Fixed
- 6 -
[figure 2] MONO SCOPE Pattern signal
US 51CH
LGE Internal Use Only
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