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LG 55LM640T User Manual

LG 55LM640T
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- 10 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied to all of the LED LCD TV
with LD22E chassis.
2. Designation
(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 instrument.
(2) Adjustment must be done in the correct order.
(3) The adjustment must be performed in the circumstance of
25 °C ± 5 °C of temperature and 65 % ± 10 % of relative
humidity if there is no specific designation.
(4) The input voltage of the receiver must keep AC 100-240
V~, 50/60 Hz.
(5) The receiver must be operated for about 5 minutes prior to
the adjustment when module is in the circumstance of over
15.
In case of keeping module is in the circumstance of 0 °C, it
should be placed in the circumstance of above 15 °C for 2
hours.
In case of keeping module is in the circumstance of below
-20 °C, it should be placed in the circumstance of above 15
°C for 3 hours.
[Caution]
When still image is displayed for a period of 20 minutes or
longer (Especially where W/B scale is strong. Digital pattern
13ch and/or Cross hatch pattern 09ch), there can some
afterimage in the black level area.
3. Automatic Adjustment
3.1. ADC Adjustment
3.1.1. Overview
ADC adjustment is needed to find the optimum black level
and gain in Analog-to-Digital device and to compensate RGB
deviation.
3.1.2. Equipment & Condition
(1) USB to RS-232C Jig
(2) MSPG-925 Series Pattern Generator(MSPG-925FA,
pattern - 65)
- Resolution : 1080P Comp1
1920*1080 RGB
- Pattern : Horizontal 100% Color Bar Pattern
- Pattern level : 0.7 ± 0.1 Vp-p
- Image
3.1.3. Adjustment
(1) Adjustment method
Don’t need to adjust ADC because there is data in OTP
and adjusted initially.
▪ Check ADC adjustment
1) Press In start key on the Adj. Remote Control, then
Adjust ADC(OTP) status is displayed on “1.Adjustment
check. Select 2.ADC Data, then ADC data is
displayed.
2) Press Adj. key on the Adjustmetn Remote Control, and
select “9.ADC Calibration”. Set up the ADC Type to
OTP, then Select [Start] button by pressing Enter key,
Component and RGB are Writed and display Success
or NG.
(2) Adj. protocol
Ref.) ADC Adj. RS232C Protocol_Ver1.0
(3) Adj. order
- aa 00 00 [Enter ADC adj. mode]
- xb 00 04 [Change input source to Component1 (480i&
1080p)]
- ad 00 10 [Adjust 480i&1080p Comp1]
- xb 00 06 [Change input source to RGB(1024*768)]
- ad 00 10 [Adjust 1920*1080 RGB]
- ad 00 90 End adj.
Protocol Command Set ACK
Enter adj. mode aa 00 00 a 00 OK00x
Source change
xb 00 04 b 00 OK04x (Adjust 480i, 1080p Comp1 )
xb 00 06 b 00 OK06x (Adjust 1920*1080 RGB)
Begin adj. ad 00 10
Return adj. result
OKx (Case of Success)
NGx (Case of Fail)
Read adj. data
(main)
ad 00 20
(main)
000000000000000000000000007c007b006dx
(sub )
(Sub)
000000070000000000000000007c00830077x
ad 00 21
Conrm adj. ad 00 99
NG 03 00x (Fail)
NG 03 01x (Fail)
NG 03 02x (Fail)
OK 03 03x (Success)
End adj. aa 00 90 a 00 OK90x

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LG 55LM640T Specifications

General IconGeneral
3DYes
Annual energy consumption104 kWh
Display diagonal55 \
Native aspect ratio16:9
Native refresh rate60 Hz
LED backlighting type-
Screen format adjustments4:3, 14:9, 16:9, Zoom
Motion interpolation technologyMCI (Motion Clarity Index) 400
Tuner typeAnalog & digital
Analog signal format systemPAL, SECAM
Digital signal format systemDVB-T2, ISDB-C
RMS rated power20 W
Number of speakers2
DVI portNo
HDMI ports quantity4
DVI-D ports quantity0
USB 2.0 ports quantity3
Ethernet LAN (RJ-45) ports1
Lifestyle appsSkype
Audio formats supportedAC3, MP3
Image formats supportedJPG
Video formats supportedDIVX, MPEG2, MPEG4
Product colorBlack
Panel mounting interface400 x 400, 400 x 600 mm
AC input voltage100 - 240 V
AC input frequency50 - 60 Hz
Power consumption (standby)0.3 W
Power consumption (typical)71 W
Weight and Dimensions IconWeight and Dimensions
Depth (with stand)331 mm
Height (with stand)795 mm
Depth (without stand)33.6 mm
Width (without stand)1232 mm
Height (without stand)723 mm

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