LG 29FU1RL/RG Service Manual page 6

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
522
(1) W/B auto adjust machine setting Table
VDC IC
EEPROM
Algorithm
(2) White balance IIC Parameter (Address)
522
Program Win31_wb
VCD Slave
(R)_Amp
Program Win31_wb TWB
Sub Add
Start Bit
Stop Bit
522
Offset
Polarity
EPRom_S
Speed/Plus
(3) Color coordinate
Tolerance Range : Adjust within ±5 for each X,Y coordinate
ITEM
EU
X 288
Y 295
9000
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.
tu2522
NAME MAKER
tu2522
TWB Win31_wb TWB
8A Eeprom_Slave
(R)_Cut G_Amp
Win31_wb TWB Win31_wb
20 17
5 5
0 0
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0 0
1 1
72 6A
2 2 2
Latin
N-EU Taiwan
America
282
268 267
273 276 288
13000 13000 10000
Range
Default setting data
PAL
32
0~63
32
0~63
32
0~63
32
0~63
32
0~63
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
A2 1 30
3.6. SUB-BRIGHTNESS Adjustment (Do not adjust)
G_Cut
This adjustment must be done after the White balance
TWB Win31_wb TWB
Adjustment
21 18
3.6.1. Adjustment preparation
5 5
(1).NTSC
0 0
-. Received LG standard Mono scope pattern (CH14).
0 0
-. Set the picture condition on "APC ON" (CLEAR) mode.
(2). PAL
0 0
-. Received PAL B/G 5CH pattern.
68 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
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
NTSC
32
32
32 Fixed
32
32
32 Fixed
- 6 -
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disappear. (See figure 2)
[figure 2] MONO SCOPE Pattern signal
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US 51CH
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LGE Internal Use Only