DOWNLOAD LG 47LY3DF-UA (CHASSIS:LA73A) Service Manual ↓ Size: 5.31 MB | Pages: 46 in PDF or view online for FREE

Model
47LY3DF-UA (CHASSIS:LA73A)
Pages
46
Size
5.31 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
47ly3df-ua-chassis-la73a.pdf
Date

LG 47LY3DF-UA (CHASSIS:LA73A) Service Manual ▷ View online

C
2007
- 13 -
In this case, first press the 
Rev button
of Video Signal
Generator (Master), to generate the white pattern to be displayed
from the left.  
Because the above pattern can differ by the model and pattern
for each device, you must check the pattern first. 
B. When the receiving signal is confirmed after inputting the
internal signal, press the ADJ KEY on the adjustment R/C
to enter ‘EZ-ADJUST’. Select ‘5.Adjust RF and Video’ and
press the right key (
G
) to enter the adjustment mode.
C. When you enter the adjustment mode, the video is
automatically set to TV 2CH and the following window is
displayed.
D. When the adjustment is completed, a message saying ‘RF
Configuration Success’ is displayed. If the adjustment has
failed, a message saying ‘RF Configuration Error’ is
displayed.
E. When the automatic adjustment of RF signal is completed,
it is automatically switched to the Video Mode as shown in
the above picture, and automatic adjustment for Video
Mode is done. When the automatic adjustment is
completed, a message saying ‘Video Configuration
Success’ is displayed. If the adjustment has failed, a
message saying ‘Video Configuration Error’ is displayed..
O  
Check RS-232C operation
Press the Instart of adjustment R/C to enter the 7.Baud Rate
menu and set the Baud Rate to 115200 to check the 232-C
operation
5. Automatic adjustment of Component
480i/1080p RGB 1080p
5.1 Introduction
The Component 480i/1080p RGB 1080p adjustment sets the
optimal black level and gain automatically from the analog =>
digital converter, and is the function to correct the RGB
deviation
5.2 Using device
Adjustment remote controller, 801GF (802B, 802F, 802R) or
MSPG925FA Pattern Generator 
(480i/1080P Horizontal 100% Color Bar Pattern output must
be possible and output level must be adjusted accurately to
0.7±0.1Vp-p.)
Because the above pattern can differ by the model and pattern
for each device, you must check the pattern first.
(Adjustment pattern : 480i / 1080P 60Hz Pattern)
5.3 480i Comp1, 1080p Comp1/RGB adjustment
method
A. ADC 480i component1 adjustment
- Check Component1 connected condition from the using
device.
- (MSPG-925FA : (model :209 , pattern :65 )
B. Input Component 100% Horizontal Color Bar Pattern
(HozTV31Bar) of 480i Mode that is supported, select the input
to Component1 and select the video to ‘Normal’. 
C. Wait for more than 1 second after receiving the signal and
then press the ADJ KEY on the adjustment R/C to enter ‘Ez –
Adjust’. Select ‘3. ADC 480i Comp1’ and press the Enter KEY
to make the automatic adjustment. 
D. When the adjustment is normally completed, a message
saying "ADC Component1 Success" is displayed. 
E. When the adjustment is not normally completed, a message
saying ‘ADC Component1 480i Fail’ is displayed. When the
component is not connected, a message saying ‘Component1
Not Connected’, when the input format is not 480i, a message
saying ‘Not Valid Format’ and when the input signal is not
coming out, a message saying ‘Check Signal Status’ is
displayed for 1 second. 
F. ADC 1080P Component1/RGB adjustment 
- Check the Component1, RGB connected condition from the
using device.
- (MSPG-925FA : => model :225 , pattern :65 )
G. Input Component 100% Horizontal Color Bar Pattern
(HozTV31Bar) of 480i Mode that is supported, select the input
to Component1 and select the video to ‘Normal’. 
H.  Wait for more than 1 second after receiving the signal and
then press the ADJ KEY on the adjustment R/C to enter ‘Ez –
Adjust’. Select ‘4. ADC 1080P Comp1/RGB’ and press the
Enter KEY to make the automatic adjustment for component
1 first. 
I.  When the adjustment is normally completed, a message
saying "ADC Component1 Success" is displayed, and when
the adjustment is not normally completed, a message saying
‘ADC Component1 1080P Fail’ is displayed.
J.  After the Component1 adjustment is completed, it is
automatically switch to RGB-DTV Mode to start RGB
adjustment. When the adjustment is normally completed, a
message saying "ADC RGB 1080P Success" is displayed.
K. When the adjustment is not normally completed, make the
adjustment again after checking the pattern or adjustment
condition. The error message is as E.
L. When the adjustment is completed, press the ADJ KEY to exit.
6EDID(The Extended Display 
Identification Data)/DDC
(Display Data Channel) Download
6.1 Introduction
This has been established by VESA and is the function
created to "Plug and Play" by making the computer
reconfigure user environment through communication with
the monitor automatically without having the user set
commands directly to the PC or the monitor so that the user
can use it immediately.
When writing EDID, use the DDC2B protocol.
6.2 HDMI EDID Data input
1) Using device
a. Jig for PC, DDC adjustment (PC serial to D-sub connection
device)
b. DDC recording S/W (EDID Data Write & Read)
c. D-Sub terminal
d. Separate HDMI Cable connecting JIG is necessary
2) Adjustment preparation and device configuration
e. Configure as Fig., and turn on the PC 
f. Turn on the JIG.
g. Run the DDC recording S/W (EDID Data Write & Read).
(Execute in DOS mode)
- 14 -
C
2007
LCD TV SET
(or Digital Board)
Device configuration diagram for HDMI EDID Data input
C
2007
- 15 -
6.3 EDID Data for LA73A
C
2007
- 16 -
7. White Balance adjustment
7-1. Using device
A. Color Analyzer : CA-210 (CH 9)
When adjusting the LCD white balance, use CS-1000 as the
color analyzer (CA-210) and channel 9 corrected of Matrix
(corrected for White, Red, Green, Blue) and the adjustment
must be done in accordance with the White balance
adjustment coordinate. 
B. Automatic adjuster (Necessary for automatic adjustment, must
be able to communicate with RS-232C, Baud Rate : 115200)
C. Video Signal Generator MSPG-925F 720p, 216Gray(Model :
217, Pattern 78
7-2. Measuring device connection diagram
(for automatic adjustment)
=> Connection diagram for internal pattern
=> Connection diagram for HDMI input
7-3.  White Balance adjustment method
Basically it uses the internal pattern but when internal pattern is
not possible, you can select HDMI input for adjustment. Through
the option at the most bottom part of the Ez Adjust Menu 7.White
Balance menu, you can select NONE, INNER and HDMI, and the
default is set to INNER. When the adjustment cannot be done
with the internal pattern, you can select HDMI input for
adjustment. 
For manual adjustment, press the ADJ KEY of the adjustment
R/C to enter Ez Adjust 7.White-Balance, and the pattern is
automatically displayed. (When you set the Option to INNER, the
default is always set to INNER)
A. Connect the set according to the internal pattern or HDMI
input in accordance with 4.3.2 measuring device connection
diagram. 
B. Set the Baud Rate of RS-232C to 115200. It is set to 115200
as default.
C. Connect the RS-232C Cable to the set.
D. Connect the HDMI Cable to the set. (Limited to the set with
HDMI option)
E. Select and adjust the model applicable to LA73A chassis from
the adjuster
Caution) For automatic adjustment, RS-232C Command and
Chassis are commonly applied
7.3.1 White Balance adjustment (For automatic adjustment)
- Execute Power Only Key of the adjustment R/C to execute
automatic adjustment. Set the Baud Rate to 115200.
: Always start adjustment with "wb 00 00" and end
adjustment with "wb 00 ff"
: Adjust the offset if necessary.
7-4.  White Balance adjustment 
(For manual adjustment)
O  
Using device: CA-210
=> When adjusting the plasma white balance, use CS-1000
as the color analyzer (CA-210) and channel 9 corrected of
Matrix (corrected for White, Red, Green, Blue) and the
adjustment must be done in accordance with the below
White balance adjustment coordinate. 
O  
Manual adjustment must be done in the following order
A. Press the ADJ of adjustment R/C to enter ‘EZ-ADJUST’.
B. Select 10.TEST PATTERN using the CH + / - KEY and
press the Enter KEY to execute a heat run for more than
30 minutes. 
C. Execute a Zero Calibration for CA-210 and put it at
distance of less than 10Cm from the LCD module surface
center during the adjustment. 
D. Press the ADJ of adjustment R/C, select ‘7.White-Balance’
of ‘Ez – Adjust’ and enter the adjustment mode using the
right key (
G
).
(When you press the ¢
button, the screen enters the full
white internal pattern..)
E. The adjustment is executed in 3 different white balance of
COOL, MEDIUM and WARM.
F. When the white balance is Cool,
Fix B Gain 192, fix R-Cut / G-Cut / B-Cut 64, 
and use R Gain / G Gain to adjust the High Light. 
When the white balance is Medium,
Fix R Gain 192, fix R-Cut / G-Cut / B-Cut 64, 
and use G Gain / B Gain to adjust the High Light. 
When the white balance is Warm
Fix R Gain 192, fix R-Cut / G-Cut / B-Cut 64, 
and use G Gain / B Gain to adjust High Light.
G. Use the +, - key for adjustment.
H. When the adjustment is completed, press the OK (
KEY)
button to move to the Ez –Adjust screen. Press the ADJ
KEY to exit the adjustment mode.
C A -100+
C O L O R
A N A L Y Z E R
T Y P E ; C A -100+
F u l l W h i t e P at t er n
R S-232C
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