DOWNLOAD LG 42SL90-UA (CHASSIS:LA92S) Service Manual ↓ Size: 5.7 MB | Pages: 44 in PDF or view online for FREE

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No

Item

Content

Remark

1. Product 

Dimension

Width

Length

Height

Unit

W/O Packing

1009.2

286.5

694.5

mm

With Stand

1009.2

29.3

629.7

mm

W/O Stand

With Packing

1085

228

770

mm

With Stand

1085

228

770

mm

W/O Stand

2. 

Product Weight

W/O Packing

24.6

Kg

With Stand

20.1

Kg

W/O Stand

With Packing

TBD

Kg

With Stand

TBD

Kg

W/O Stand

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This spec. sheet applies to LA92S Chassis applied LCD TV all
models manufactured in TV factory. 

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

±5ºC of temperature and 65±10% of relative humidity if there
is no specific designation.

4) The input voltage of the receiver must keep 100~240V,

50/60Hz.

5) The receiver must be operated for about 5 minutes prior to the

adjustment when module is in the circumstance of over 15.

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,.

*Caution
When still image is displayed for a period of 20 minutes or
longer (especially where W/B scale is strong. Digital pattern
13ch and/or Cross hatch pattern 09ch), there can some
afterimage in the black level area.

*APC - After Manual-Insert, executing APC

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.

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”

(3) 

filexxx.bin 

(1) 

(4) 

Please Check the Speed : 
To use speed between 

from 200KHz  to 400KHz  

          filexxx.bin 

(5) 

(7) .OK 

(5) 

(6) 

 

4. Updating is staring.

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 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.

* Software Information 

4.1.1 Overview

ADC adjustment is needed to find the optimum black level
and gain in Analog-to-Digital device and to compensate
RGB deviation.

4.1.2 Equipment & Condition

1) Jig (RS-232C protocol) 
2) Input : MSPG-925FS(Model : 209 ,Pattern : 65, Only

component))

3) RGB Adjust use internal pattern.5.1.3 Adjustment

4.1.3 Adjustment

4.1.2.1 Method

• Using RS-232, adjust items listed in 3.1 in the order shown
in 5.1.2.3 Adj. protocol

4.1.2.2  Adj. protocol 

Ref.) ADC adj. RS232C Protocol_Ver1.0

4.1.2.3 Adj. order

•ad 00 00 [Enter ADC adj. mode]
•ad 00 10 [Adjust 480i ]
•ad 00 90 End adj.

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Model 

Tool option1  Tool option2

Tool option3 

Tool option4

42SL90-UA 26307 

3396  52134 

1056

47SL90-UA 34499 

3396  52134 

1056 

Protocol Command 

Set 

ack

Enter adj.

ad 00 00 

d 00 OK00x

mode

Begin adj. 

ad 00 10

Return adj.

OKx (Success)

result

NGx (Fail)

Read adj. 

(main)

(main) 

data

ad 00 20

000000000000000000000000007c007b006dx

(sub )  

(Sub) 

ad 00 21 

000000070000000000000000007c00830077x

Confirm adj. 

ad 00 99

NG 03 00x (Fail)

NG 03 01x (Fail)

NG 03 02x (Fail)

OK 03 03x (Success)

End adj. 

ad 00 90 

d 00 OK90x

Function IC 

Location Version 

Etc. 

SPI Boot 

IC601 

SPI Boot Version 

Serial Flash 

Software

IC604 

S/W Version 

Nand Flash 

FRC

IC801 FRC 

Version  URSA 

4.2.1 Overview

It is a VESA regulation. A PC or a MNT will display an

optimal resolution through information sharing  without any
necessity of user input. It is a realization of “Plug and Play”. 

4.2.2. Equipment 

Adj. R/C 

Since an embedded EDID data is used, EDID download jig,
HDMI cable and D-sub cable are not need.   

4.2.3. Download method 

1) Press Adj. key On the Adj. R/C, press Adj. key then select

EDID D/L.  By pressing Enter key, EDID download will
begin. 

2) If Download is successful, OK is displayed. 
3) If Download is a failure, NG is displayed. 
4) Re-try download. 

4.2.4. EDID DATA 

1) HDMI I [C/S: 1DCA] 

EDID Block 0, Bytes 0-127 [00H-7FH] 
Block Type: EDID 1.3 

EDID Block 1, Bytes 128-255  [80H-FFH] 
Block Type: CEA EDID Timing Extension Version 3 

2) HDMI II [C/S: 1DBA] 

EDID Block 0, Bytes 0-127 [00H-7FH] 
Block Type: EDID 1.3 

EDID Block 1, Bytes 128-255  [80H-FFH] 
Block Type: CEA EDID Timing Extension Version 3 

3) HDMI III [C/S: 1DAA] 

EDID Block 0, Bytes 0-127 [00H-7FH] 
Block Type: EDID 1.3 

EDID Block 1, Bytes 128-255  [80H-FFH] 
Block Type: CEA EDID Timing Extension Version 3 

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