DOWNLOAD LG 42LV3400-DG (CHASSIS:LT01M) Service Manual ↓ Size: 13.07 MB | Pages: 66 in PDF or view online for FREE

Model
42LV3400-DG (CHASSIS:LT01M)
Pages
66
Size
13.07 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
42lv3400-dg-chassis-lt01m.pdf
Date

LG 42LV3400-DG (CHASSIS:LT01M) Service Manual ▷ View online

- 17 -
ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied to all of the LCD TV with
LT01M/P/R 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±5ºC 
Relative humidity : 65±10%
Input voltage : 220V, 60Hz
Caution) When still image is displayed for a period of 20
minutes or longer, there can some  afterimage in
the black level area. 
6) Adjustment equipments : Color Analyzer (CA-210 or CA-
110), DDC Adjustment Jig equipment, SVC remote
controller. 
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.
          filexxx.bin 
(7) 
(5) 
(8) ……….OK 
(6) 
(1) 
(3) 
(2)
OK
Please Check the Speed : 
To use speed between 
from 200KHz to 400KHz 
(4) 
filexxx.bin 
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 “I n-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.
The receiver must be operated for about 5 minutes prior
to the adjustment when module  is in the circumstance of
over 15°C  
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,.  
- 18 -
* USB DOWNLOAD(*.epk file 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
(3) Show the message “Copying files from memory”
(4) Updating is staring.
(5) After updating is complete, The TV will restart automatically.
(6) If  TV  turns on, check your updated version and Tool
option. (refer to the next page about tool option)
* If downloading version is higher 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 controller.
2. Select "Tool Option 1" and Push “OK” button.
3. Punch in the number. (Each model has their number.)
4. Completed selecting Tool option.
3.1. ADC Process
G
” key at “6. ADC
Calibration”
* Caution: Using ‘power on’ button of the Adj. R/C, 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 (1024x768)]
• ad 00 10
[Adjust 1024x768 RGB]
• aa 00 90
[End Adjust Mode]
* Required equipment : Adjustment R/C
 
 
 
i
TV Software Upgrade
Upgrading...
Do not plug off!
63%
 
 
 
 
i
TV Software Upgrade
Upgrading COMPLETED
The TV will restart after    seconds.
100%
 
 
i
TV Software Upgrade
Copying files from memory
Do not remove the memory card from the pc
Do not plug off!
No.
Item
CMD1
CMD2
Data0
Enter Adjust Mode 
0
0
2 ADC 
Adjust
0
0
Model 
Tool  
opt ion1 
Tool  
opt ion2 
Tool  
opt ion3 
Tool  
opt ion4 
Tool  
opt ion5 
47LV3500-DG_LGD 34656  19478  55337  26904 
256 
42LV3500-DG_CMI 26468  19478  55337  26904 
352 
42LV3500-DG_AUO 26472  19478  55337  26904 
352 
42LV3500-DG_LGD 26464  19478  55337  26904 
288 
37LV3500-DG_LGD 22368  19478  55337  26904 
288 
37LV3500-DG_AUO 22376  19478  55337  26904 
352 
32LV3500-DG_LGD 18272  19478  55337  26904 
288 
32LV3500-DG_AUO 18280  19478  55337  26904 
352 
42LV3400-DG_LGD 26592  9226  53289  26904 
288 
42LV3300-DG_AUO   9226 53289 
26904 288 
32LV3400-DG_LGD 18400  9226  53289  26904 
288 
32LV2500-DG_CMI 18212  19478  55337  26904 
352 
32LV2500-DG_LGD 18208  19478  55337  26904 
288 
32LV2500-DG_AUO 18216  19478  55337  26904 
352 
32LV2450-DG_AUO   19478 
55337 
26904 352 
26LV2500-DG_LGD 14112  8714  55337  26904 
288 
42LK450-DG_LGD 26240  18966  55305  26904  8450 
37LK450-DG_LGD 22144  18966  55305  26904  8450 
32LK450-DG_AUO 18056  18966  55305  26904 
290 
32LK450-DG_LGD 18048  18966  55305  26904  8482 
32LK330-DH_AUO 17992 18966  51209  26904  290 
32LK330-DH_LGD 17984  18966  51209  26904 
290 
26LK330-DH_AUO 13896  18966  51209  26904 
290 
22LK330-DH_CMI 9796  18966 51209  26904  256 
22LV2500-DG_AUO 10024  8714 
55337  26904 
288 
22LV2500-DG_CMI 10020  8714  55337  26904 
288 
19LV2500-DG_AUO 5928  8714  55337  26904 
288 
- 19 -
3.2. Function Check
(1) Check display and sound
- Check Input and Signal items. (cf. work instructions)
1) TV
2) AV (CVBS)
3) COMPONENT (480i)
4) RGB (PC : 1024 x 768 @ 60hz)
5) HDMI 
6) PC Audio In 
* 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 : CH 9, Test signal : Inner pattern (85IRE)
· Above 5 minutes H/run in the inner pattern. (“power on” key
of adjust remote control)
4.1.1. 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
4.1.2. Auto-control interface and directions
1) Adjust in the place where the influx of light like floodlight
around is blocked. (illumination is less than 10ux).
2) Adhere closely the Color Analyzer (CA210) to the module
less than 10cm 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 15minutes.
- Using ‘no signal’ or ‘full white pattern’ or the others, check
the back light on.
4.1.3. 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 adjusts Remote control. 
•After enter Service Mode by pushing “ADJ” key, 
•Enter White Balance by pushing “
G
” key at “7. White Balance”. 
# After You finish all adjustments, Press “In-start” button 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. And Mechanical Power Switch  must be set
“ON”.  
Cool 13,000k
ºK
X=0.269(±0.002)
All
Y=0.273(±0.002)
<Test Signal>
Medium 9,300k
ºK
X=0.285(±0.002)
Inner pattern
Y=0.293(±0.002)
(216gray,85IRE)
Warm
6,500k
ºK
X=0.313(±0.002)
Y=0.329(±0.002)
Cool 9,300k
ºK
X=0.285(±0.002)
Only 22LD350
Y=0.293(±0.002)
<Test Signal>
Medium 8,000k
ºK
X=0.295(±0.002)
Inner pattern
Y=0.305(±0.002)
(216gray,85IRE)
Warm
6,500k
ºK
X=0.313(±0.002)
Y=0.329(±0.002)
 
Full White Pattern
COLOR
ANALYZER
TYPE: CA-210
RS-232C Communication
CA-210
RS-232C COMMAND MIN
CENTER
MAX
[CMD ID DATA]
(DEFAULT)
Cool
Mid
Warm
Cool
Mid
Warm
R Gain
jg 
Ja 
jd 
00
172 
192 
192
255
G Gain 
jh 
Jb
je 
00
172 
192 
192
255
B Gain 
ji 
Jc 
jf
00
192 
192 
172 
255
R Cut 
64 
64 
64 
128
G Cut 
64 
64 
64 
128
B Cut 
64 
64 
64 
128
- 20 -
4.2. DDC EDID Write (RGB 128Byte )
· Connect D-sub Signal Cable to D-Sub Jack.
· Write EDID DATA to EEPROM (24C02) by using DDC2B
protocol.
· Check whether written EDID data is correct or not.
* For SVC main Ass’y, EDID have to be downloaded to Insert
Process in advance.
4.3 DDC EDID Write (HDMI 256Byte)
· Connect HDMI Signal Cable to HDMI Jack.
· Write EDID DATA to EEPROM(24C02) by using DDC2B
protocol.
· Check whether written EDID data is correct or not.
* For SVC main Ass’y, EDID have to be downloaded to Insert
Process in advance.
4.4 EDID DATA
1) All Data : HEXA Value
2) Changeable Data :
*: Serial No : Controlled / Data:01
**: Month : Controlled / Data:00
***:Year : Controlled
****:Check sum
- Auto Download
· After enter Service Mode by Pushing “ADJ” key
· Enter EDID D/L mode.
· Enter “START’ by pushing “OK” key.
HDMI number is dependent on model.
- Manual Download
* Caution
1) Use the proper signal cable for EDID Download
- Analog EDID : Pin3 exists
- Digital EDID : Pin3 exists
2) Nerver connect HDMI & D-sub Cable at the same time.
3) Use the proper cables below for EDID Writing.
4) Download HDMI1, HDMI2 separately because each data is
different.
(1) FHD RGB EDID Data (CS : 1C)
(2) FHD HDMI 1 EDID Data (CS : E299)
 
 
 
 
D-sub to D-sub
DVI-D to HDMI or HDMI to HDMI
For HDMI EDID
For Analog EDID
Item
Manufacturer ID
Version
Revision
Condition
GSM
Digital : 1
Digital : 3
Data(Hex)
1E6D
01
03
Page of 66
Display

Click on the first or last page to see other 42LV3400-DG (CHASSIS:LT01M) service manuals if exist.