LG 42LX6500 Service Manual

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LGE Internal Use OnlyCopyright © 2010 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
ⓐ Product ID
ⓑ Serial No. : Controlled on product line
ⓒ Month, Year: Controlled on production line:
ex) Monthly : ‘01’ -> ‘01’
Year : ‘2010’ -> ‘14’
ⓓ Model Name(Hex):
ⓔ Checksum: Changeable by total EDID data.
ⓕ Vendor Specific(HDMI)
4.3. White Balance Adjustment
4.3.1 Overview
(1) W/B adj. Objective & How-it-works
(2) Objective: To reduce each Panel’s W/B deviation
(3) How-it-works : When R/G/B gain in the OSD is at 192, it
means the panel is at its Full Dynamic Range. In order to
prevent saturation of Full Dynamic range and data, one of
R/G/B is fixed at 192, and the other two is lowered to find
the desired value.
(4) Adj. condition : normal temperature
1) Surrounding Temperature : 25 ºC ± 5 ºC
2) Warm-up time: About 5 Min
3) Surrounding Humidity : 20 % ~ 80 %
4.3.2 Equipment
1) Color Analyzer: CA-210 (LED Module : CH 14)
2) Adj. Computer(During auto adj., RS-232C protocol is
needed)
3) Adjust Remote control
4) Video Signal Generator MSPG-925F 720p/216-Gray
(Model:217, Pattern:78)
-> Only when internal pattern is not available
A Color Analyzer Matrix should be calibrated using CS-1000
4.3.3. Equipment connection MAP
4.3.4. Adj. Command (Protocol)
<Command Format>
- LEN: Number of Data Byte to be sent
- CMD: Command
- VAL: FOS Data value
- CS: Checksum of sent data
- A: Acknowledge
Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]
A RS-232C Command used during auto-adj.
Ex) wb 00 00 -> Begin white balance auto-adj.
wb 00 10 -> Gain adj.
ja 00 ff -> Adj. data
jb 00 c0
...
...
wb 00 1f -> Gain adj. completed
*(wb 00 20(Start), wb 00 2f(completed)) -> Off-set adj.
wb 00 ff -> End white balance auto-adj.
A Adj. Map
Model Name HEX EDID Table DDC Function
ALL 0001 0100 Analog
0001 0100 Digital
MODEL MODEL NAME(HEX)
all 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
INPUT MODEL NAME(HEX)
HDMI1 78 03 0C 00 10 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10
HDMI2 78 03 0C 00 20 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10
HDMI3 78 03 0C 00 30 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10
HDMI4 78 03 0C 00 40 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10
HDMI5 78 03 0C 00 50 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10
INPUT 1 2 3
HDMI1 D7 CB X
HDMI2 D7 BB X
HDMI3 D7 AB X
HDMI4 D7 9B X
HDMI5 X X 1D
Color Analyzer
Computer
Pattern Generator
RS-23 2C
RS-232C
RS-232C
Probe
Signal Source
* If TV internal pattern is used, not needed
LEN CMD VAL
CS
RS-232C COMMAND Explanation
[CMD ID DATA]
wb 00 00 Begin White Balance adj.
wb 00 10 Gain adj.(internal white pattern)
wb 00 1f Gain adj. completed
wb 00 20 Offset adj.(internal white pattern)
wb 00 2f Offset adj. completed
wb 00 ff End White Balance adj.(Internal pattern disappears)
ITEM Command Data Range(Hex.) Default(Decimal)
Cmd 1 Cmd 2 Min Max
Cool R-Gain j g 00 C0
G-Gain j h 00 C0
B-Gain j i 00 C0
R-Cut
G-Cut
B-Cut
Medium R-Gain j a 00 C0
G-Gain j b 00 C0
B-Gain j c 00 C0
R-Cut
G-Cut
B-Cut
Warm R-Gain j d 00 C0
G-Gain j e 00 C0
B-Gain j f 00 C0
R-Cut
G-Cut

LG 42LX6500 Specifications

General

Display diagonal	42 \
Audio system	Dolby Digital
RMS rated power	20 W
Number of speakers	2
PC in (D-Sub)	Yes
HDMI ports quantity	4
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Digital audio optical out	1
Power consumption (standby)	0.1 W
Power consumption (typical)	150 W
Annual energy consumption	156 kWh

Weight and Dimensions

Depth (with stand)	270 mm
Height (with stand)	692 mm
Weight (with stand)	19000 g
Depth (without stand)	29.3 mm
Width (without stand)	1016 mm
Height (without stand)	630 mm
Weight (without stand)	16700 g