DOWNLOAD LG 37LT560H-CA (CHASSIS:LJ2AC) Service Manual ↓ Size: 3.78 MB | Pages: 40 in PDF or view online for FREE

Model
37LT560H-CA (CHASSIS:LJ2AC)
Pages
40
Size
3.78 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
37lt560h-ca-chassis-lj2ac.pdf
Date

LG 37LT560H-CA (CHASSIS:LJ2AC) Service Manual ▷ View online

- 9 -
3.1. ADC Process(TBD)
3.1.1. ADC
■ Enter Service Mode by pushing “ADJ” key,
Calibration”
=> Caution :  Using  ‘power  on’  button  of  the Adjustment  R/C, 
power on TV.
 ADC Calibration Protocol (RS232C/USB)
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 adjust-
ment
(The use of a inter-
nal pattern)
 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 R/C. 
3.2. Function Check
3.2.1. 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 controller.
 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 (80IRE) – in case of 
CCFL back light
    CA210 :  CH14, Test signal : Inner pattern (80IRE) – in case of 
LED back light
■  Above 5 minutes H/run in the inner pattern. (“power on” key of 
adjust remote control)
 LCD LAMP MODEL :  The  spec  of  color  temperature  and 
coordinate
19” and 22”
Cool (C50)
9,300K
x = 0.285 (±0.002)
y = 0.293 (±0.002)
<Test signal>
 - Inner pattern for W/B 
adjust
 - External white 
pattern
(80IRE, 204gray)
Medium (0)
8,000K
x = 0.295 (±0.002)
y = 0.305 (±0.002)
Warm (W50)
6,500K
x = 0.313 (±0.002)
y = 0.329 (±0.002)
Over 26”
Cool (C50)
13,000K x = 0.269 (±0.002)
y = 0.273 (±0.002)
<Test signal>
 - Inner pattern for W/B 
adjust
 - External white 
pattern
(80IRE, 204gray)
Medium (0)
9,300K
x = 0.285 (±0.002)
y = 0.293 (±0.002)
Warm (W50)
6,500K
x = 0.313 (±0.002)
y = 0.329 (±0.002)
 LED Model : W/B adjust target value
Cool
Medium
Warm
Remark
X
y
x
y
x
y
SPEC
269 273 285 293 313 329 ALL LED Model 
26/32/42LT360C
32/37/42LT560H
TARGET 271 276 287 296 315 332
    
- 10 -
  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 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 5 minutes.
-  Using ‘no signal’ or ‘full white pattern’ or the others, check 
the back light on.
● Auto adjustment Map(RS-232C)
   RS-232C COMMAND
   [ CMD    ID    DATA ]    
       Wb     00       00       White Balance Start
       Wb     00       ff        White Balance End  
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
** 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 “►” 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”. 
- 11 -
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. 
 Edid data and Model option download (RS232C)
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 com-
mand
Edid data 
and Model 
option
download
Download
A
E
00
10
Automatically 
download
(The use of a 
internal Data)
 Caution
* Use the proper signal cable for EDID Download
- Analog EDID : Pin3 exists 
- Digital EDID : Pin3 exists
=> Caution 
     -  Never connect HDMI & D-sub Cable at the same time.
- Use the proper cables below for EDID Writing.
-  Download  HDMI1,  HDMI2  separately  because  HDMI1  is 
different from HDMI2.
For Analog EDID
For HDMI EDID
D-sub to D-sub
DVI-D to HDMI or HDMI to HDMI
No.
Item
Condition
Hex Data
1
Manufacturer ID
GSM
1E6D
2
Version
Digital : 1
01
3
Revision
Digital : 3
03
 EDID DATA
(1) HD EDID Data
CheckSum
Physical Address (0x9E)
HDMI 1
A4/5B
10
HDMI 2
A4/4B
20
- 12 -
(2) FHD EDID Data(Deep Color support)
CheckSum
Physical Address (0x9E)
HDMI 1
43/DE
10
HDMI 2
43/CE
20
HDMI 3
43/BE
30
- HDMI
-RGB
(3) FHD EDID Data(Deep Color not support)
CheckSum
Physical Address (0x9E)
HDMI 1
43/25
10
HDMI 2
43/15
20
HDMI 3
43/05
30
- HDMI
-RGB
- Model List
HD(LED)
FHD(LED)
26LT360C-SA
37LT560H-SA
32LT360C-SA
42LT360C-SA
32LT560H-SA
42LT560H-SA
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