DOWNLOAD LG 37LD450 (CHASSIS:LT01B) Service Manual ↓ Size: 5.11 MB | Pages: 60 in PDF or view online for FREE

(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.

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.

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

(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.

- 13 -

Model 

Tool option1  Tool option2 Tool option3  Tool option4 Tool option5

32LD450-DA

16417

10774

52228

26892

32

37LD450-DA

20513

10774

52228

26892

32

42LD450-DA

24609

10774

52228

26892

32

22LD350-DB

20513

10774

3076

26892

32

26LD350-DB

12289

10774

3076

26892

32

32LD350-DB

16385

10774

3076

26892

32

22LE5300-DA

8417

8714

52260

26892

3104

26LE5300-DA

12513

18954

52260

26892

3104

 

 

TV Software Upgrade

Upgrading...

Do not plug off!

63%

 

 

TV Software Upgrade

Upgrading COMPLETED

The TV will restart after    seconds.

100%

 

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

1 

Enter Adjust Mode 

A 

A 

0

0

2 ADC 

Adjust

A 

D 

0

0

· 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)

**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)

• After enter Service Mode by pushing “ADJ” key,
• Enter White Balance by pushing “

G

”

* After done 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.

- 14 -

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

White Balance

Color Temp.

R-Gain

G-Gain

B-Gain

R-Cut

G-Cut

B-Cut

Test-Pattern.

Reset

Cool

172

172

192

64

64

64

ON

To set

· 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.

· 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.

1) All Data : HEXA Value
2) Changeable Data :

*: Serial No : Controlled / Data:01
**: Month : Controlled / Data:00
***:Year : Controlled
****:Check sum

* 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.

- 15 -

HDMI1

HDMI2

HDMI3

RGB

HDMI1

HDMI2

HDMI3

RGB

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

(1) FHD RGB EDID Data (CS : 1D)

(2) FHD HDMI EDID Data (CS : D739)

(3) FHD HDM2 EDID Data (CS : D739)

(4) HD RGB EDID Data (CS : 93)

(5) HD HDMI1 EDID Data (CS : 7AD5)

(6) HD HDMI2 EDID Data (CS : 7AD5)

(7) HD HDMI3 EDID Data (CS : 7AB5)

(8) ASCII Code

- 16 -