32LX4DC-UB, 32LX4DCS-UB (CHASSIS:LA53A) - LG TV Service Manual (repair manual). Page 11

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These instructions are applied to all of the LCD TV, LA53A.

(1) Because this is not a hot chassis, it is not necessary to use

an isolation transformer. However, the use of isolation
transformer will help protect test equipment.

(2) Adjustments must be done in the correct order.
(3) The adjustments must be performed in the circumstance of

25±5°C of temperature and 65±10% of relative humidity if
there is no specific designation.

(4) The input voltage of the receiver be must kept 110V, 60Hz

when adjusting.

(5) The receiver must be operational for about 15 minutes

prior to the adjustments.  

Perform preliminary operation after receiving 100%

White Pattern (06CH).

(Or 3. White Pattern status of Ez-Adjust)

White Pattern entry method

A) Enter into Ez-Adjust by pressing the ADJ key on

the adjustment R/C.

B) 100% FULL WHITE PATTERN appears if pressing

the OK (

) key after selecting the 3.WHITE

PATTERN with the CH + / - KEY.

* It is possible to heat run the set without a separate

signal generator in this mode.

Caution : Care must be taken as afterimage

phenomena may occur about the black level part of

screen If leaving pause image turned on for more

than 20 minutes (especially inner digital pattern (13

CH), Cross Hatch Pattern (09CH) with significant

black/white contrast).

(1) Test Equipment: PC, Jig for download
(2) Connect the power of VSC B/D.
(3) Execute download program(iMPACK) of PC.
(4) After executing the hot key on the Programmer, click icon
(5) End after confirming

The menu of MST3385A-set let optimum black level and Gain
automatically set up during changing from Analog mode to
Digital mode and also correct RGB variation. 

Service R/C,  MSPG925FA Pattern Generator
(720P,480i The Horizontal 100% Color Bar Pattern output will
be possible and the output level will accurately have to be
revised with 0.7±0.1Vp-p)

(A) Impress Resolution 720P mode(Model,217) and

Pattern 100% Horizontal Color Bar(HozTV31Bar) which
follows in the MSPG-925D and then convert to
Component mode in input-mode.  

(B) After receiving signal for at least 1 second, press the

ADJ Key on the Service R/C to enter the ‘Ez - Adjust’
and select the ‘1. MST3385A-720P SET’.

Pressing the Enter Key to adjust with automatic
movement.  

(C) When the adjustment is over, 'ADC Component 720P

Success’ is displayed. 

(D) If the adjustment has errors, 'ADC Configuration Error’

is displayed. And error massage(‘Component Not
Connection’ or ‘Change Format to 480i’ or ‘Check
Pattern of device’) is displayed for 1 second.

(A) Impress Resolution 480i mode(Model,217) and Pattern

100% Horizontal Color Bar(HozTV31Bar) which follows
in the MSPG-925D and then convert to Component
mode in input-mode.  

(B) After receiving signal for at least 1 second, press the

ADJ Key on the Service R/C to enter the ‘Ez - Adjust’
and select the ‘3. MST3385A-480I Success’.
Pressing the Enter Key to adjust with automatic
movement.  

(C) When the adjustment is over, 'MST3385 Component

Success’ is displayed. If the adjustment has errors,
'MST3385A Configuration Error’ is displayed.

PC

VSC

B/D

(720P/60Hz : Format No.217, Pattern No. 65)

(480i/60Hz : Format No.209, Pattern No. 65)