DOWNLOAD LG 22LS3300 (CHASSIS:LP24A / LP24B) Service Manual ↓ Size: 4.51 MB | Pages: 26 in PDF or view online for FREE

Model
22LS3300 (CHASSIS:LP24A LP24B)
Pages
26
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4.51 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
22ls3300-chassis-lp24a-lp24b.pdf
Date

LG 22LS3300 (CHASSIS:LP24A / LP24B) Service Manual ▷ View online

- 9 -
ADJUSTMENT INSTRUCTION
1. Application Range
This  specification  sheet  is  applied  to  all  of  the  LCD TV  with 
LP24A 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  100-220  V, 
50/60Hz.
(5) The standard signal level is approved in 65 dBµV ± 1 dBµV.
(6)  The receiver must be operated for over 5 minutes prior to 
the  adjustment  when  module  is  in  the  circumstance  of 
above 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. 
3. PCB assembly adjustment method
3.1. Mstar Main S/W program download
3.1.1. Using D/L Jig
(1) Preliminary steps
1) Connect the download jig to D-sub(JK201) Jack.
(2) Download steps
1)  Execute  ‘ISP Tool’  program,  the  main  window(Mstar  ISP 
utility Vx.x.x) will be opened.
2) Click the “Connect” button and confirm “Dialog Box”.
3) Click the “Config.” button and Change speed
I2C Speed setting : 350Khz~400Khz
4) Read and write bin file
Click “(1)Read” tab, and then load download file(XXXX.
bin) by clicking “Read”.
5) Click “(2)Auto” tab and set as below
6) Click “(3)Run”.
7) After downloading, you can see the “(4)Pass” message.
3.1.2. Using the Memory Stick
** USB DOWNLOAD : Service Mode
1)  Insert the USB memory Stick to the USB port. (The file 
name  of  bin  file  should  start  as  “M8R…”.  and  Bin  file 
should not be encrypted)
2)  Automatically detect the bin file and ask download or not.
G
- 10 -
3) Press OK key then Message will be changed as below.
4)  Plug off and on TV set, then you can see downloading 
process.
5)  Then,  Plug  off  and  on TV  set  again,  and  Download  is 
finished
3.2. Input tool option.
- Adjust tool option refer to the BOM.
■ Tool Option Input : PCBA Check Process
■ Area Option Input : Set Assembly Process
- After Input Tool Option and  AC off
Before PCBA check, you have to change the Tool option and 
have to AC off/on (Plug out and in)
(If missing this process, set can operate abnormally)
(1)  Profile : Must be changed the option value because being 
different  with  some  setting  value  depend  on  module 
maker, inch and market 
(2) Equipment : adjustment remote control.
(3) Adjustment method    
-  The  input  methods  are  same  as  other  chassis.  (Use 
IN-START key on the Adjust Remote control.)
   (If not changed the option, the input menu can differ the 
model spec.)
Refer  to  Job  Expression  of  each  main  chassis  ass’y 
(EBTxxxxxxxx) for Option value.
*Caution: Don’t Press “IN-STOP” key after completing the 
function inspection.
* Caution:  Don’t  connect  HDMI  cable  when  downloading  the 
EDID. If the cables are connected, Downloading of 
edid could be failed.
3.3. EDID data
- EDID D/L method: The EDID data is automatically saved.
■ HD MODEL
3.4. ADC Calibration
3.4.1. ADC Calibration-Component
(Using External pattern)
* Required Equipments
■ Remote controller for adjustment
■ MSPG-925F/MSPG-1025/MSPG-3233 Pattern Generator
3.4.2. Process
(1) Change the Input to Component mode.
(2)  Input the Component 480P@60 Hz 100% color Bar Y Pb 
Pr  signal  into  Component.  (MSPG-925F  Model:  212/ 
Pattern: 65)
(3) Press ADJ key on R/C for adjustment.
(4) Enter Password number. Password is “0413”.
(5) Select “Auto-RGB” and press OK(■) key.
(6) ADC adjustment is executed automatically.
(7)  When  ADC  adjustment  is  finished,  this  OSD  appear 
“COMPONENT - OK”.
3.4.3. Confirmation
(1)  Adjust  by  commanding AUTO_COLOR_ADJUST  (0xF1) 
0x00 0x02 instruction
(2)  We confirm whether “0x77 (offset), 0x78 (gain)” address of 
EEPROM “0xBE” is “0xAA” or not. 
(3)  If “0x77”, “0x78” address of EEPROM “0xBE” isn’t “0xAA”, 
we adjust once more
(4)  We  can  confirm  the  ADC  values  from  “0x56~0x5B” 
addresses in a page “0xBE”
3.4.4. EEPROM  Address
G
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 01 00 01 01 01 01
10 01 16 01 03 80 A0 5A 78 0A F3 30 A4 54 46 96 26
20 0F 49 4B 21 08 00 45 40 01 01 61 40 01 01 01 01
30 01 01 01 01 01 01 01 1D 00 72 51 D0 1E 20 6E 28
40 55 00 C4 8E 21 00 00 1E 1B 21 50 A0 51 00 1E 30
50 48 88 35 00 BC 77 21 00 00 1C 00 00 00 FC 00 4C
60 47 20 54 56 0A 20 20 20 20 20 20 20 00 00 00 FD
70 00 3A 3F 1C 44 0F 00 0A 20 20 20 20 20 20 01 A6
80 02 03 25 F1 4F 84 07 01 16 02 03
11
12 13 14 05
90 20 22 1F 10 23 09 07 07 83 01 00 00 68 03 0C 00
A0 10 00 80 1E 00 01 1D 00 80 51 D0 1C 20 40 80 35
B0 00 BC 88 21 00 00 1E 8C 0A D0 8A 20 E0 2D 10 10
C0 3E 96 00 13 8E 21 00 00 18 8C 0A A0 14 51 F0 16
D0 00 26 7C 43 00 C4 8E 21 00 00 98 01 1D 80 18 71
E0 1C 16 20 58 2C 25 00 C4 8E 21 00 00 9E 00 00 00
F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 2A
EEPROM
Address
EEPROM Sub Address
0XBE
Red Gain
0X59
Green Gain
0X5A
Blue Gain
0X5B
Red Offset
0x56
Green Offset
0X57
Blue Offset
0X58
- 11 -
3.5 Check SW Version
4.5.1 Method
(1) Push In-star key on Adjust remote-controller.
(2) SW Version check
Check “Main : Vx.xx” : 
4. SET assembly adjustment method
4.1. Input Area-Option
(1) Profile :  Must  be  changed  the Area  option  value  because 
being different of each Country’s
(2) Equipment : adjustment remote control.
(3) Adjustment method
-  The  input  methods  are  same  as  other  chassis.(Use 
IN-START key on the Adjust Remote control.)
 Refer  to  Job  Expression  of  each  main  chassis  ass’y 
(EBTxxxxxxxx) for Option value. 
4.2. Adjustment of White Balance.
■  Purpose:  Adjust  the  color  temperature  to  reduce  the 
deviation of the module color temperature.
■  Principle: To adjust the white balance without the saturation, 
Fix the one of R/G/B gain to C0 and decrease the others.
■ Adjustment mode : Three modes - Cool / Medium / Warm
   (Medium data is automatically calibrated by the Cool data)
■ Adj. condition: normal temperature
1) Surrounding Temperature: 25 °C ± 5 °C
2) Warm-up time: About 5 Min
3) Surrounding Humidity: 20 % ~ 80 %
■ Required Equipment
■ Remote controller for adjustment 
■  Color Analyzer : CA100+ or CA-210 or same product - LCD 
TV(CH: 9), (should be used in the calibrated ch by CS-1000)
■ Auto W/B adjustment instrument (only for Auto adjustment)
4.2.1. Connecting diagram of equipment for measuring
(For Automatic Adjustment)
(1) Enter the adjustment mode of DDC
■ 22Set command delay time : 50ms
■  Enter the DDC adjustment mode at the same time heat-
run mode when pushing the power on by power only key)
■  Maintain the DDC adjustment mode with same condition 
of Heat-run → Maintain after AC off/on in status of Heat-
run pattern display
(2) Release the DDC adjustment mode
■  Release the adjust mode after AC off/on or std-by off/on 
in status of finishing the Hear-run mode.
■  Release  the Adjust  mode  when  receiving  the  aging  off 
command(WB 00 FF) from adjustment equipment.
■  Need to transmit the aging off command to TV set after 
finishing the adjustment.
■  Check DDC adjust mode release by exit key and release 
DDC adjust mode.
(3) Enter the adjust mode of white balance
■  Enter  the  white  balance  adjustment  mode  with  aging 
command(F3, 00, 00).
(4) Release the adjust mode of white balance
■  Enter  the  white  balance  adjustment  mode  with  aging 
command(F3, 00, FF)
*  Luminance  min  value  is  150cd  in  the  Cool/Medium/Warm 
mode(For LCD)
G
Tool Option
Area Option
Module 
Maker
0 : CMI
1 : THTF
2 : LPL
Lang Group 0 : NONEU A
1 : NONEU H
2 : NONEU ALL
Inch
0 : 22” (Default)
1 : 23”
2 : 32”
Def. Lang
0 : ENGLISH
1 : CHINESE
2 : ESPANOL
3 : PORTUGUES
Frame
0 : LK230 (Default) TTX Group 0 : OFF
1 : ON
Module 
Rev.
0 : Rev.0 (Default)
1 : Rev.1
I II SAVE
0 : OFF
1 : ON
HDEV
MONO
BlueBack
Country
- 12 -
4.3. Adjustment of White Balance
(for Manual adjustment)
■  Color  analyzer(CA100+,  CA210)  should  be  used  in  the 
calibrated ch by CS-1000
■  Operate the zero-calibration of the CA100+ or CA-210, then 
stick sensor to the module when adjusting.
■  For manual adjustment, it is also possible by the following 
sequence.
1)  Select  white  pattern  of  heat-run  by  pressing  “POWER 
ON” key on remote control for adjustment then operate 
heat  run  longer  than  5  minutes.  (If  not  executed  this 
step, the condition for W/B may be different.)
2) Push “Exit” key.
3) Change to the AV mode by remote control.
4) Input external pattern (85% white pattern)
5)  Push  the ADJ  key  two  times  (entering  White  Balance 
mode) → Enter “0413” (Password)
6)  Stick the sensor to the center of the screen and select 
each  items  (Red/Green/Blue  Gain  and  Offset)  using 
▲/▼(CH +/-) key on R/C..
7) Adjust R/ G/ B Gain using ◄/►(VOL +/-) key on R/C.
8)  Adjust three modes all (Cool / Medium / Warm) : Fix the 
one of R/G/B gain and change the others
9)  When  adjustment  is  completed,  Exit  adjustment  mode 
using EXIT key on R/C.
* CASE
First adjust the coordinate far away from the target value(x, y).
1) x, y > target
i) Decrease the R, G. 
2) x, y < target
i) First decrease the B gain, 
ii) Decrease the one of the others.
3) x > target ,  y < target
i) First decrease B, so make y a little more than the target.
ii) Adjust x value by decreasing the R
4) x < target ,  y > target
i) First decrease B, so make x a little more than the target.
ii) Adjust x value by decreasing the G
■  Standard color coordinate and temperature when using the 
CA100+  or  CA210  equipment  (Small  size  inch’s  color 
coordinate is different from others, So use below table)
1) All Edge LED, All Direct LED and Lamp over 26 inch
2) 22 inch TN Edge LED
3) 22 inch Lamp(CMI & THTF)
To  check  the  Coordinates  of  White  Balance,  you  have  to 
measure at the below conditions.
Picture Mode : Vivid(User)
Dynamic Contrast : Off ,  Dynamic Colour : Off
(If  you  miss  the  upper  condition,  the  coordinates  of  W/B 
can be lower than the spec.)
Mode
Color coordinate
Temp
∆uv
x
y
Cool
0.271±0.002
0.276±0.002
13,000K
0.000
Medium
0.287±0.002
0.296±0.002
9,300K
0.000
Warm
0.315±0.002
0.332±0.002
6,500K
0.003
Mode
Color coordinate
Temp
∆uv
x
y
Cool
0.287±0.002
0.296±0.002
9,300K
0.000
Medium
0.297±0.002
0.308±0.002
8,000K
0.000
Warm
0.315±0.002
0.332±0.002
6,500K
0.003
Mode
Color coordinate
Temp
∆uv
x
y
Cool
0.280±0.002
0.283±0.002
9,300K
0.000
Medium
0.290±0.002
0.295±0.002
8,000K
0.000
Warm
0.308±0.002
0.319±0.002
6,500K
0.000
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