DOWNLOAD LG 42LM6700 (CHASSIS:LA22E) Service Manual ↓ Size: 14.9 MB | Pages: 127 in PDF or view online for FREE

Model
42LM6700 (CHASSIS:LA22E)
Pages
127
Size
14.9 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
42lm6700-chassis-la22e.pdf
Date

LG 42LM6700 (CHASSIS:LA22E) Service Manual ▷ View online

- 11 -
4.2.5. Download
1)  US,  Canada,  Mexico  models  (11Y  LCD  TV  +  MAC  + 
Widevine + ESN Key)
2)  Korea  and  Philippine  models  (11Y  LCD  TV  +  MAC  + 
Widevine Only)
4.2.6. Inspection
- In INSTART menu, check these keys.
4.3. LAN PORT INSPECTION(PING TEST)
4.3.1. Equipment setting
1) Play the LAN Port Test PROGRAM.
2) Input IP set up for an inspection to Test 
    Program.
    *IP Number : 12.12.2.2.
4.3.2. LAN PORT inspection  (PING TEST)
1) Play the LAN Port Test Program.
2) connect each other LAN Port Jack.
3) Play Test (F9) button and confirm OK Message.
4) remove LAN CABLE
- 12 -
4.4. EDID Download
4.4.1. Overview
-  It is a VESA regulation. A PC or a MNT will display an optimal 
resolution through information sharing without any necessity  
of user input. It is a realization of “Plug and Play”.  
4.4.2. Equipment
(1)  Since EDID data is embedded, EDID download JIG, HDMI 
cable and D-sub cable are not need.
(2) Adjust by using remote controller.
4.4.3. Download method
(1) Press Adj. key on the Adj. R/C,
(2) Select EDID D/L menu.
(3) By pressing Enter key, EDID download will begin
(4)  If Download is successful, OK is display, but If Download is 
failure, NG is displayed.
(5) If Download is failure, Re-try downloads.
Caution:  When  EDID  Download,  must  remove  RGB/HDMI 
Cable.
4.4.4. EDID DATA
4.4.4.1. 2D PCM(US) _ XvYcc : 0n
▪Reference
- HDMI1 ~ HDMI4 / RGB 
-  In the data of EDID, bellows may be different by S/W or Input 
mode. 
 Product ID
HEX
EDID Table
DDC Function
0001
0100
Analog
0001
0100
Digital
 Serial No:  Controlled on production line.
 Month, Year: Controlled on production line: 
     ex)  Monthly : ‘01’  ->  ‘01’ 
   
Year    : ‘2012’ ->  ‘16’
 Model Name(Hex): LGTV
Chassis
MODEL NAME(HEX)
LA22E
00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 
 Checksum(LG TV): Changeable by total EDID data.
1
2
3
HDMI1
43
F2
X
HDMI2
43
E2
X
HDMI3
43
D2
X
HDMI4
43
C2
X
RGB
X
X
5C
ⓕ 
Vendor Specific(HDMI)
INPUT
MODEL NAME(HEX)
HDMI1
67 03 0C 00 10 00 80 2D
HDMI2
67 03 0C 00 20 00 80 2D
HDMI3
67 03 0C 00 30 00 80 2D
HDMI4
67 03 0C 00 40 00 80 2D
4.4.4.2. 3D PCM(US) _ XvYcc : 0n
 Product ID
HEX
EDID Table
DDC Function
0001
0100
Analog
0001
0100
Digital
 Serial No:  Controlled on production line.
 Month, Year: Controlled on production line: 
     ex)  Monthly : ‘01’  ->  ‘01’ 
   
Year    : ‘2012’ ->  ‘16’
 Model Name(Hex): LGTV
Chassis
MODEL NAME(HEX)
LA22E
00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20  
 Checksum(LG TV): Changeable by total EDID data.
1
2
3
HDMI1
43
64
X
HDMI2
43
54
X
HDMI3
43
44
X
HDMI4
43
34
X
RGB
X
X
5C
- 13 -
ⓕ 
Vendor Specific(HDMI)
INPUT
MODEL NAME(HEX)
HDMI1 78 03 0C 00 10 00 80 2D 20 C0 0E 01 4F 00 FE 
08 10 06 10 18 10 28 10 38 10
HDMI2 78 03 0C 00 20 00 80 2D 20 C0 0E 01 4F 00 FE 
08 10 06 10 18 10 28 10 38 10
HDMI3 78 03 0C 00 30 00 80 2D 20 C0 0E 01 4F 00 FE 
08 10 06 10 18 10 28 10 38 10
HDMI4 78 03 0C 00 40 00 80 2D 20 C0 0E 01 4F 00 FE 
08 10 06 10 18 10 28 10 38 10
4.4.4.3. 3D PCM(US) _ XvYcc : 0ff
▪Reference
- HDMI1 ~ HDMI4 / RGB 
-  In the data of EDID, bellows may be different by S/W or Input 
mode. 
 Product ID
HEX
EDID Table
DDC Function
0001
0100
Analog
0001
0100
Digital
 Serial No:  Controlled on production line.
 Month, Year: Controlled on production line: 
     ex)  Monthly : ‘01’  ->  ‘01’ 
   
Year    : ‘2012’ ->  ‘16’
 Model Name(Hex): LGTV
Chassis
MODEL NAME(HEX)
LA22E
00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20   
 Checksum(LG TV): Changeable by total EDID data.
1
2
3
HDMI1
43
B5
X
HDMI2
43
A5
X
HDMI3
43
95
X
HDMI4
43
85
X
RGB
X
X
5C
ⓕ 
Vendor Specific(HDMI)
INPUT
MODEL NAME(HEX)
HDMI1
67 03 0C 00 10 00 80 2D
HDMI2
67 03 0C 00 20 00 80 2D
HDMI3
67 03 0C 00 30 00 80 2D
HDMI4
67 03 0C 00 40 00 80 2D
4.4.4.4. 3D PCM(US) _XvYcc : off
 Product ID
HEX
EDID Table
DDC Function
0001
0100
Analog
0001
0100
Digital
 Serial No:  Controlled on production line.
 Month, Year: Controlled on production line: 
     ex)  Monthly : ‘01’  ->  ‘01’ 
   
Year    : ‘2012’ ->  ‘16’
 Model Name(Hex): LGTV
Chassis
MODEL NAME(HEX)
LA22E
00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20  
 Checksum(LG TV): Changeable by total EDID data.
1
2
3
HDMI1
43
68
X
HDMI2
43
58
X
HDMI3
43
48
X
HDMI4
43
38
X
RGB
X
X
5C
ⓕ 
Vendor Specific(HDMI)
INPUT
MODEL NAME(HEX)
HDMI1 78 03 0C 00 10 00 80 2D 20 C0 0E 01 4F 00 FE 
08 10 06 10 18 10 28 10 38 10
HDMI2 78 03 0C 00 20 00 80 2D 20 C0 0E 01 4F 00 FE 
08 10 06 10 18 10 28 10 38 10
HDMI3 78 03 0C 00 30 00 80 2D 20 C0 0E 01 4F 00 FE 
08 10 06 10 18 10 28 10 38 10
HDMI4 78 03 0C 00 40 00 80 2D 20 C0 0E 01 4F 00 FE 
08 10 06 10 18 10 28 10 38 10
- 14 -
5. Final Assembly Adjustment
5.1. White Balance Adjustment
5.1.1. Overview
5.1.1.1. W/B adj. Objective & How-it-works
(1) Objective: To reduce each Panel’s W/B deviation
(2)  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. 
(3) Adj. condition: normal temperature
- Surrounding Temperature: 25±5 °C
- Warm-up time: About 5 Min
- Surrounding Humidity: 20% ~ 80%
-  Before  White  balance  adjustment,  Keep  power  on  status, 
don’t power off
 
5.1.1.2. Adj. condition and cautionary items
(1)  Lighting condition in surrounding area surrounding lighting 
should  be  lower  10  lux. Try  to  isolate  adj.  area  into  dark 
surrounding.
(2)  Probe  location:  Color Analyzer  (CA-210)  probe  should  be 
within 10cm and perpendicular of the module surface
     (80°~ 100°)
(3) Aging time
-  After  Aging  Start,  Keep  the  Power  ON  status  during  5 
Minutes.
-  In  case  of  LCD,  Back-light  on  should  be  checked  using  no 
signal or Full-white pattern.
5.1.2. Equipment
(1)  Color Analyzer: CA-210 (NCG: CH 9 / WCG: CH12 / LED: 
CH14)
(2)  Adj.  Computer  (During  auto  adj.,  RS-232C  protocol  is 
needed)
(3) Adjust Remocon
(4)  Video  Signal  Generator  MSPG-925F  720p/204-Gray 
(Model: 217, Pattern: 49) 
 Color Analyzer Matrix should be calibrated using CS-1000
5.1.3. Equipment connection
5.1.4. Adjustment Command (Protocol)
(1) RS-232C Command used during auto-adj.
RS-232C COMMAND
Explanation
CMD
DATA
ID
Wb
00
00
Begin White Balance adj.
Wb
00
ff
End White Balance adj. 
(internal pattern disappears )
(2) Adjustment Map
Adj. item Command
(lower caseASCII)
Data Range
(Hex.)
CMD1
CMD2
MIN
MAX
Cool
R Gain
j
g
00
C0
G Gain
j
h
00
C0
B Gain
j
i
00
C0
Medium
R Gain
j
a
00
C0
G Gain
j
b
00
C0
B Gain
j
c
00
C0
Warm
R Gain
j
d
00
C0
G Gain
j
e
00
C0
B Gain
j
f
00
C0
5.1.5. Adjustment method
5.1.5.1 Auto WB calibration
(1)  Set TV  in ADJ  mode  using  P-ONLY  key  (or  POWER  ON 
key)
(2) Place optical probe on the center of the display
   -  It need to check probe condition of zero calibration before 
adjustment.
(3) Connect RS-232C Cable
(4) Select mode in ADJ Program and begin a adjustment.
(5)  When  WB  adjustment  is  completed  with  OK  message, 
check  adjustment  status  of  pre-set  mode  (Cool,  Medium, 
Warm)
(6) Remove probe and RS-232C cable.
▪  W/B Adj.  must  begin  as  start  command  “wb  00  00”  ,  and 
finish as end command “wb 00 ff”, and Adj. offset if need
5.1.6.  Reference (White Balance Adj. coordinate and 
color temperature)
(1) Luminance: 204 Gray, 80IRE
(2)  Standard color coordinate and temperature using CS-1000 
(over 26 inch)
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