LG 26LX1D-UA TV Service menu
LG MODEL 26LX1D-UA SERVICE MODE
CHASSIS AL-04DAThis service code can use for LG 26LX2D-UA
Applicability
These specifications are applicable for all PDP TV models with an AL-04DA chassis that are manufactured by the Manufacturing Group of the Display Business Division, or any of its related manufacturers.
LG 26LX1D-UA Specifications
This chassis is the non-charging type chassis for which the power unit is insulated. Therefore, the
insulated type transformer is not required but it is recommended that it be used between the power
supply line and chassis input side before running the chassis, in order to protect the adjustment equipment.
Adjustment should be made in the correct sequence.
However, the order can be changed for mass production purposes.
The suggested surrounding temperature is 25±5°C, and suggested relative humidity is 65±10% for the adjustment of the chassis, unless specified.
The input voltage should be maintained at 110V and 60MHz.
The receiver should run for about 15 minutes before starting adjustment, unless specified.
- Run prior operation after receiving 100% White pattern (06CH).
(OR, 9. White Pattern state in Ez-Adjust.)
- How to enter into the White Pattern
1) Press the Power ON key in the adjustment remote control.
2) Or, press the ADJ key on the adjustment remote control to enter into Ez-Adjust and select 9. White
Pattern using CH +/- key. Then, press the OK key to display 100% Full White Pattern.
* In this mode, the SET can be put on HEAT RUN
without a separate signal generator.
Note If you leave the stop image on for more than 20 minutes, you must be careful because an afterimage will appear on the black level section.
(Applies to internal digital pattern (13CH) and cross hatch pattern (09CH) with clear black/white
contrast, in particular).
LG 26LX1D-UA Full assembly process adjustment
<Precaution>
Each PCB assembly must be checked using the check jig set before the full assembly process. (The power PCB assembly can damage the LCD module irreparably.)
Extended Display Identification Data (EDID) and Display Data Channel (DDC) download
Overview
Developed by VESA, the EDID function is designed to support the "plug & play" function, which enables the computer to configure the user environment automatically through communication with the
monitor.
LG 26LX1D-UA TV Service menu
Photo credit : sikhco.com
Entering the LG 26LX1D-UA HDMI EDID Data
1) Equipment
- PC and DDC adjustment jig (PC serial to D-sub connection device)
- DDC recording software (EDID data write & read)
- D-Sub terminal
- Need separate HDMI cable connection jig.
Adjusting AD9883A-Set
Overview
AD9883A-Set adjustment automatically sets the optimal black level, and readjusts the RGB
differences in analog -> digital converter.
Adjustment is made separately for the component
mode and RGB-DTV mode input.
LG 26LX1D-UA Equipment
Adjustment remote control: 801GF (802B, 802F, 802R) or MSPG925FA Pattern Generator(It should
support 720P horizontal 100% color bar patter display, and the output level should be accurately
corrected to 0.7±0.1Vp-p.)
Adjustment pattern: 720P/60Hz HozBar Pattern (Format No. 217, Pattern No. 65)
Signal input method
Connect the component output and RGB D-Sub output of the Pattern Generator to the component 1
and RGB D-Sub jack of the set.
LG 26LX1D-UA Adjustment method
A) When entering the component, input 100%
Horizontal Color Bar Pattern (HozTV30Bar) of the supportable 720P mode, and select Component 1
or Component 2 input, and select Normal image.
B) Wait for at least one second after receiving the signal and press the ADJ key on the adjustment
remote control to enter into Ez-Adjust. Then, select "1. AD9883A-Set" and press the + key for
automatic adjustment.
C) If adjustment is completed successfully, the "AD9883A Component Success" message will be
displayed. Otherwise, the "AD9883A Configuration Error" message will be displayed.
D) If the adjustment for component AD9883A is finished, it will automatically switch to RGB-DTV
mode, and the above-mentioned pattern will be displayed. If adjustment is successfully completed,
"AD9883A RGB_DTV Success" message will be displayed.
E) If adjustment is not completed successfully, check the pattern or adjustment condition and try again.
F) If adjustment is completed successfully, press the ADJ key to exit from the adjustment mode.
LG 26LX1D-UA Adjusting White Balance
Equipment
- Color Analyzer (CA-100 or equivalent item)
- Automatic adjustment device (Needed for automatic adjustment. It should support RS-232C
communication, Baud rate: 115,600)
- Pattern Generator (MSPG-925FA): Equipment with DVI output.
- Pattern: High light 80% Full White
Measurer Connection Diagram (Automatic adjustment)
Connection diagram for 32LX1D-U automatic adjustment
Note) RS-232C Commands used for automatic adjustment.
LG 26LX1D-UA Manual White Balance Adjustment
When adjusting after carrying out zero calibration for CA-100, the sensor should be tightly fixed on the
LCD module surface. Take the following steps for manual adjustment.
A) Press the ADJ key on the adjustment remote control to enter into "Ez-Adjust."
B) Select "9. White Pattern" using CH +/- key and press the OK key. Then, perform Heat Run for
more than 30 minutes.
C) Make the Digital Pattern Generator supply Full White Pattern signal.
(Connect the external input to "HDMI".)
D) Fix the sensor to the screen center and press the ADJ key on the adjustment remote control to
select "6. White balance" in "Ez-Adjust". Then, press the right direction key ( ) to enter into the
adjustment mode.
E) Adjust the high light using R Gain, G Gain, and B Gain.
F) Use Volume +/- key for adjustment.
LG 26LX1D-UA Adjustment Target value
- Brightness value
- Target value
X coordinate value / White balance / Special items / Fix B-Gain.
Video (uPD) - Automatic Set Adjustment This automatic adjustment function narrows the color
difference between the main and sub screen of the RF and video signal. Adjustment is made for both RF mode and video 1 mode. The signal source of RF is internal 02Ch, and the signal source for video 1 is 100% full color bar.
RS232C Operation Check
Press In-start in the adjustment remote control and enter '6. Baud Rate' menu. Then, change the baud
rate to 9600 and check RS232C operation.