LG 29FU1RG, Service Manual

Page: 6 / 20

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 CH
D
, CH
E
key to choose adjustment item.
(4). Use the VOL
F
,VOL
G
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
(2) White balance IIC Parameter (Address)
(3) Color coordinate
Tolerance Range : Adjust within ±5 for each X,Y coordinate
(4) White Balance default setting data
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.
3.6. SUB-BRIGHTNESS Adjustment (Do not adjust)
This adjustment must be done after the White balance
Adjustment
3.6.1. Adjustment preparation
(1).NTSC
-. Received LG standard Mono scope pattern (CH14).
-. Set the picture condition on “APC ON” (CLEAR) mode.
(2). PAL
-. Received PAL B/G 5CH pattern.
-. Set the picture condition on “PSM ON” (DYNAMIC) mode.
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
pressing the VOL
F
,VOL
G
KEY so that the number 1 in
gray scale of mono scope pattern almost disappear.
In the ultra slim, Do until the number “1” completely
disappear . (See figure 2)
(3). PAL MODEL: Change the Sub-Brightness data by
pressing the VOL
F
,VOL
G
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)
Program
Sub Add
Start Bit
Stop Bit
Offset
Polarity
EPRom_S
(R)_Amp
Win31_wb TWB
20
5
0
0
1
72
(R)_Cut
Win31_wb TWB
17
5
0
0
1
6A
G_Amp
Win31_wb TWB
21
5
0
0
0
68
- 6 -
Program
VCD Slave
Win31_wb TWB
8A Eeprom_Slave
Win31_wb TWB
A2
Speed
1
Delay
30
VDC IC
EEPROM
NAME MAKER NOTE
Algorithm
Speed/Plus
2
2 2 2
G_Cut
Win31_wb TWB
18
5
0
0
0
6B
ITEM
EU N-EU Philippines Taiwan
Latin
America
288
295
9000
X
Y
Color
Temperature
282
288
10000
267
276
13000
268
273
13000
266
282
13000
Copyright©2010 LG Electronics.Inc. All right reserved.
Only for training and service purposes. LGE Internal Use Only
LOW
LIGHT
HIGH
LIGHT
ITEM
BLO-R(R CUT)
BLO-G(G CUT)
BLO-B(B CUT)
RG(R DRIVE)
GG(G DRIVE)
BG(B DRIVE)
Default setting data
PAL NTSC
32
32
32
32
32
32
32
32
32
32
32
32
remark
Fixed
Fixed
Range
0~63
0~63
0~63
0~63
0~63
0~63
US 51CH
[Fig 1] Cross-Hatch Pattern(NTSC:US 51CH, PAL:C-8 CH)
[figure 2] MONO SCOPE Pattern signal