32LX2D-UA (CHASSIS:AL-04DA) - LG TV Service Manual (repair manual). Page 10

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These specifications are applicable for all LCD 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.

2.1 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.

2.2 Adjustment should be made in the correct sequence.

However, the order can be changed for mass
production purposes.

2.3 The suggested surrounding temperature is 25

±

5°C,

and suggested relative humidity is 65

±

10% for the

adjustment of the chassis, unless specified.

2.4 The input voltage should be maintained at 110V and

60MHz.

2.5 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). 

<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.)

3.1. Extended Display Identification Data (EDID) and

Display Data Channel (DDC) download

3.1.1 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. 

3.1.2 Entering the 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. 

3.2. Adjusting AD9883A-Set

3.2.1. 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.

3.2.2. 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)

3.2.3 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.