LG 42LM3400 / 42LM340Y / 42LM3410 (CHASSIS:LB21C) Service Manual ▷ View online
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ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied to all of the LED LCD TV
with LB21C chassis.
2. Designation
(1) The adjustment is according to the order which is designated
and which must be followed, according to the plan which
can be changed only on agreeing.
(2) Power adjustment : Free Voltage.
(3) Magnetic Field Condition: Nil.
(4) Input signal Unit: Product Specification Standard.
(5) Reserve after operation : Above 5 Minutes (Heat Run)
Temperature : at 25 °C ± 5 °C
Relative humidity : 65 ± 10 %
Input voltage : 220 V, 60 Hz
(6) Adjustment equipments: Color Analyzer(CA-210 or CA-110),
DDC Adjustment Jig, Service remote control.
(7) Push the "IN STOP" key - For memory initialization.
3. Main PCB check process
▪ APC - After Manual-Insert, executing APC
* Boot file Download
(1) Execute ISP program "Mstar ISP Utility" and then click
"Config" tab.
(2) Set as below, and then click "Auto Detect" and check "OK"
message.
If "Error" is displayed, check connection between computer,
jig, and set.
(3) Click "Read" tab, and then load download file(XXXX.bin)
by clicking "Read"
(4) Click "Connect" tab. If "Can't" is displayed, check connection
between computer, jig, and set.
(5) Click "Auto" tab and set as below.
(6) Click "Run".
(7) After downloading, check "OK" message.
* USB DOWNLOAD
(1) Put the USB Stick to the USB socket.
(2) Automatically detecting update file in USB Stick.
- If your downloaded program version in USB Stick is Low,
it didn't work. But your downloaded version is High, USB
data is automatically detecting.
(1)
filexxx.bin
(4)
(5)
(6)
(7)...........OK
filexxx.bin
(2)
(3)
Please Check the Speed :
To use speed between
from 200KHz to 400KHz
Case1 : Software version up
1. After downloading S/W by USB , TV set will reboot
automatically.
2. Push “In-stop” key.
3. Push “Power on” key.
4. Function inspection
5. After function inspection, Push “In-stop” key.
Case2 : Function check at the assembly line
1. When TV set is entering on the assembly line, Push
“In-stop” key at first.
2. Push “Power on” key for turning it on.
→ If you push “Power on” key, TV set will recover
channel information by itself.
3. After function inspection, Push “In-stop” key.
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(3) Show the message "Copying files from memory".
(4) Updating is starting.
(5) Updating Completed, The TV will restart automatically.
(6) If your TV is turned on, check your updated version and
Tool option. (explain the Tool option, next stage)
* If downloading version is more high than your TV have, TV
can lost all channel data. In this case, you have to channel
recover. if all channel data is cleared, you didn’t have a DTV/
ATV test on production line.
* After downloading, have to adjust Tool Option again.
(1) Push "IN-START" key in service remote control.
(2) Select "Tool Option 1" and push "OK" key.
(3) Punch in the number. (Each model has their number)
3.1. ADC Process
(1) ADC
- Enter Service Mode by pushing "ADJ" key,
Calibration".
<Caution> Using "power on" key of the Adjustment remote
control, power on TV.
* ADC Calibration Protocol (RS232)
Adjust Sequence
▪ aa 00 00 [Enter Adjust Mode]
▪ xb 00 40 [Component1 Input (480i)]
▪ ad 00 10 [Adjust 480i Comp1]
▪ xb 00 60 [RGB Input (1024*768)]
▪ ad 00 10 [Adjust 1024*768 RGB]
▪ aa 00 90 End Adjust mode
* Required equipment : Adjustment remote control.
3.2. MAC Address
3.2.1. Equipment & Condition
▪ Play file: Serial.exe
▪ MAC Address edit
▪ Input Start / End MAC address
3.2.2. Download method
(1) Communication Prot connection
Connect: PCBA Jig-> RS-232C Port== PC-> RS-232C Port
(2) MAC Address Download, Whidevine Download
▪ Com 1,2,3,4 and 115200(Baud rate)
lGhkq|z{
WUG{GvX
XUG{GvYG
YUG{GvZG
ZUG{Gv[G
[UG{Gv\G
\UGj GnG
]UGhkjGjG
ඖ
^UG~GiG
_UGXWGwG~iG
`UG{GwG
XWUGlkpkGkVsG
XXUGzGiVjG
XYUG{Gz GzG
XZUlUGpGhG
G
hkjGj
hkjGjG[_W
un
hkjGjGXW_W
un
hkjGyni
un
z
y
NO
Item
CMD 1 CMD 2 Data 0
Enter
Adjust MODE
Adjust
‘Mode In’
A
A
0
0
When transfer the ‘Mode In’,
Carry the command.
ADC adjust
ADC Adjust
A
D
1
0
Automatically adjustment
(The use of a internal pattern)
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3.3. LAN Inspection
3.3.1. Equipment & Condition
▪ Each other connection to LAN Port of IP Hub and Jig
3.3.2. LAN inspection solution
▪ LAN Port connection with PCB
▪ Network setting at MENU Mode of TV
▪ Setting automatic IP
▪ Setting state confirmation
▪ Network setting at MENU Mode of TV
▪ Setting automatic IP
▪ Setting state confirmation
-> If automatic setting is finished, you confirm IP and MAC
Address.
3.4. LAN PORT INSPECTION(PING TEST)
Connect SET -> LAN port == PC -> LAN Port
3.4.1. 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
3.4.2. 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.
3.5. Function Check
* Check display and sound
- Check Input and Signal items. (cf. work instructions)
1) TV
2) AV
3) COMPONENT (480i)
4) RGB (PC : 1024 x 768 @ 60hz)
5) HDMI
* Display and Sound check is executed by Remote control.
<Caution>
Not to push the INSTOP key after completion if the function
inspection.
4. Total Assembly line process
4.1. Adjustment Preparation
▪ W/B Equipment condition
CA210
: CCFL/EEFL -> CH9, Test signal: Inner pattern(80IRE)
LED -> CH14, Test signal: Inner pattern(80IRE)
▪ Above 5 minutes H/run in the inner pattern. ("power on" key
of Adjustment remote control)(Only EEFL)
▪ Direct LED W/B adjust target value (Only LGD direct LED)
* Connecting picture of the measuring instrument
(On Automatic control)
Inside PATTERN is used when W/B is controlled. Connect to
auto controller or push Adjustment R/C POWER ON -> Enter
the mode of White-Balance, the pattern will come out.
* Auto-control interface and directions
(1) Adjust in the place where the influx of light like floodlight
around is blocked. (illumination is less than 10 lux).
(2) Adhere closely the Color analyzer(CA210) to the module
less than 10 cm distance, keep it with the surface of the
Module and Color analyzer's prove vertically.(80° ~ 100°).
(3) Aging time
- After aging start, keep the power on (no suspension of
power supply) and heat-run over 5 minutes.
- Using 'no signal' or 'POWER ONLY' or the others, check
the back light on.
Full White Pattern
CA-210
COLOR
ANALYZER
TYPE : CA-210
RS-232C Communication
SET
PC
Cool
13,000 K X=0.269 (±0.002)
Y=0.273 (±0.002)
<Test Signal>
- Inner pattern for W/B
adjust
- External white pattern
(204gray,80IRE)
Medium
9,300 K
X=0.285 (±0.002)
Y=0.293 (±0.002)
Warm
6,500 K
X=0.313 (±0.002)
Y=0.329 (±0.002)
Target
(Direct
LED)
Cool
Medium
Warm
X
y
x
y
x
y
271
276
287
296
315
332
- 12 -
▪ Auto adjustment Map(RS-232C)
RS-232C COMMAND
[CMD ID DATA]
Wb
00 00
White Balance Start
Wb
00 ff
White Balance End
<Caution>
Color Temperature : COOL, Medium, Warm.
One of R Gain/G Gain/ B Gain should be kept on 0xC0, and
adjust other two lower than C0.(When R/G/B Gain are all
C0, it is the FULL Dynamic Range of Module)
* Manual W/B process using Adjust remote control.
▪ After enter Service Mode by pushing "ADJ" key,
▪ Enter White Balance by pushing "►" key at "7. White
Balance".
* After you finished all adjustments, Press "In-start" key and
compare Tool option and Area option value with its BOM, if
it is correctly same then unplug the AC cable. If it is not
same, then correct it same with BOM and unplug AC cable.
For correct it to the model's module from factory Jig model.
* Push the "IN STOP" key after completing the function
inspection.
4.2. EDID DATA
(1) All Data : HEXA Value
(2) Changeable Data :
*: Serial No : Controlled / Data:01
**: Month : Controlled / Data:00
***: Year : Controlled
****: Check sum
4.2.1. Auto Download
▪ After enter Service Mode by pushing "ADJ" key.
▪ Enter EDID D/L menu.
▪ Enter "START" by pushing "OK" key.
<Caution> Never connect HDMI & D-sub cable when EDID
downloaded.
* CS460, LS3400, LS3500 and LM3400 series have only
one HDMI.
* EDID data and Model option download (RS232)
(1) 3D FHD RGB EDID data
RS-232C COMMAND
[CMD ID DATA]
MIN
CENTER
(DEFAULT)
MAX
Cool
Mid
Warm
Cool Mid Warm
R Gain jg
Ja
jd
00
172
192 192
192
G Gain jh
Jb
je
00
172
192 192
192
B Gain ji
Jc
jf
00
192
192 172
192
R Cut
64
64
64
128
G Cut
64
64
64
128
B Cut
64
64
64
128
EZ ADJUT
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Country Group
6. ADC Calibration
7. White Balance
8. 10 Point WB
9. Test Pattern
10. EDID D/L
►
11. Sub B/C
12. Touch Sensitivity setting
13. Ext. Input Adjust
EDID D/L
HDMI1
HDMI2
HDMI3
RGB
NG
NG
NG
NG
Reset
Start
EDID D/L
Reset
Start
HDMI1
HDMI2
HDMI3
RGB
OK
OK
OK
OK
NO
Item
CMD 1 CMD 2 Data 0
Enter download
MODE
Download
‘Mode In’
A
A
0
0 When transfer the ‘Mode
In’, Carry the command.
EDID data and
Model option
download
Download
A
E
00 10
Automatically download
(The use of a internal
data)
No.
Item
Condition
Hex Data
1
Manufacturer ID
GSM
1E6D
2
Version
Digital : 1
01
3
Revision
Digital : 3
03
3D 0
1
2
3
4
5
6
7
8
9
A
B C D E
F
0 00 FF FF FF FF FF FF 00 1E 6D
A
B
10
C
01 03 68 A0 5A 78 0A EE 91 A3 54 4C 99 26
20 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80
30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
40 45 00 A0 5A 00 00 00 1E 66 21 50 B0 51 00 1B 30
50 40 70 36 00 A0 5A 00 00 00 1E 00 00 00 FD 00 3A
60 3E 1E 53 10 00 0A 20 20 20 20 20 20
30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
40 45 00 A0 5A 00 00 00 1E 66 21 50 B0 51 00 1B 30
50 40 70 36 00 A0 5A 00 00 00 1E 00 00 00 FD 00 3A
60 3E 1E 53 10 00 0A 20 20 20 20 20 20
D
70
D
00 E
EZ ADJUST
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Country Group
6. ADC Calibration
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Country Group
6. ADC Calibration
7. White Balance
►
8. 10 Point WB
9. Test Pattern
10. EDID D/L
11. Sub B/C
12. Touch Sensitivity Setting
13. Ext. Input Adjust
9. Test Pattern
10. EDID D/L
11. Sub B/C
12. Touch Sensitivity Setting
13. Ext. Input Adjust
White Balance
Color Temp.
R-Gain
G-Gain
B-Gain
R-Cut
G-Cut
B-Cut
Test-Pattern
Backlight
Reset
G-Gain
B-Gain
R-Cut
G-Cut
B-Cut
Test-Pattern
Backlight
Reset
Cool
172
172
192
172
192
64
64
64
64
64
ON
100
To Set
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