DOWNLOAD LG 32LG300C / 32LG300H (CHASSIS:LD85A) Service Manual ↓ Size: 3.54 MB | Pages: 30 in PDF or view online for FREE

- 10 -

This specification sheet is applied to all of the LCD TV with
LD85A chassis.

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

6) Adjustment equipments: Color Analyzer (CA-210 or CA-

110), Pattern Generator (MSPG-925L or Equivalent), DDC
Adjustment Jig equipment, SVC remote controller

7) Don’t push the “IN STOP KEY” after completing the

function inspection.

* APC - After Manual-Insult, 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 display “Error”, Check connect computer, jig
and set.

3) Click “Connect” tab. If display “Can’t”, Check connect

computer, jig, and set.

4) Click “Read” tab, and then load download file(XXXX.bin) by

clicking “Read”.

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”.

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.

(1)

(3)

(2)

 OK

Please Check Speed :
To us speed between from 200 KHz
to 400 KHz

(4)

filexxx.bin

(5)

(7) ........ OK

(6)

filexxx.bin

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1) Push "IN-START" key in service remote control.
2) Select "MODEL SELECT" and push “OK” button.
3) Go to “INCH” and choice proper inch.
4) TV  power turn off and on.
5) Completed Tool option

1) Auto RGB Gain/Offset Adjustment

- Convert to PC in Input-source
- Signal equipment displays

Output Voltage : 700 mVp-p
Impress Resolution XGA (1024 x 768 @ 60Hz)
Model : 60    in Pattern Generator
Pattern : 65   in Pattern Generator (MSPG-925,
MSPG-1025 Series)

- Adjust by commanding AUTO_COLOR_ADJUST.

2) Confirmation

- We confirm whether “0xAA (RGB)” address of

EEPROM “0xA2” is “0xAA” or not. 

- If “0xAA (RGB)” address of EEPROM “0xA2” isn’t

“0xAA”, we adjust once more

- We can confirm the ADC values from “0xA4~0XA9

(RGB)” addresses in a page “0xA2”

* Manual ADC process using Service Remote control.

After enter Service Mode by pushing “ADJ” key,
execute “ADC Adjust” by pushing “

G

” key at “ADC

CALIBRATION : RGB-PC”.

1) Component Gain/Offset Adjustment

- Convert to Component in Input-source
- Signal equipment displays

<MSPG-925 Series>

MODEL : 209   in Pattern Generator (480i Mode)
Pattern : 65   in Pattern Generator
MODEL : 223   in Pattern Generator (1080i Mode)
Pattern : 65   in Pattern Generator

<MSPG-1025 Series>

Model : 321   in Pattern Generator (480i Mode)
Pattern: 65   in Pattern Generator
Model : 327   in Pattern Generator (1080i Mode)
Pattern: 65   in Pattern Generator

- Adjust by commanding AUTO_COLOR_ADJUST.

2) Confirmation

- We confirm whether “0xB3 (480i)/0xBC (1080i)”

address of EEPROM “0xA2” is “0xAA” or not.

- If “0xB3 (480i)/0xBC(1080i)” address of EEPROM

“0xA2” isn’t “0xAA”, we adjust once more.

- We can confirm the ADC values from “0xAD~0XB2

(480i)/0XB6~BB (1080i)” addresses in a page “0xA2”.

* Manual ADC process using Service Remote control.

After enter Service Mode by pushing “ADJ” key,
execute “ADC Adjust” by pushing “

G

” key at “ADC

CALIBRATION : COMPONENT”.

480i Mode

1080i Mode

<Fig. 1> Adjustment pattern(PC)

<Fig. 2> Adjustment pattern(COMPONENT)

- Check Input and Signal items. (cf. work instructions) 

1) TV
2) AV (SCART1/SCART2/S-VHS/CVBS)
3) COMPONENT (480i)
4) RGB (PC : 1024 x 768 @ 60hz)
5) HDMI 1,2
6) PC Audio In
7) RJP
8) LED Clock (check with Real time clock)
9) Alarm Clock
10) Ext Speaker (1W/MONO)
11) Ext 5V/1A or 12V/1A (is different as to BOM option)
* Display and Sound check is executed by remote control.

1) Set the power supply switch as shown in the below picture.
2) Turn only the #5 switch on (Up position)
3) Use the RJ-45 cable to connect the TV and JIG.

4) Enter the IN-START mode, and select “RJP Pin Check”.
5) The check result is displayed after 1~2 seconds.

(1) W/B Equipment condition

CA210: CH 9, Test signal: Inner pattern (85IRE)

(2) Above 5 minutes H/run in the inner pattern. (“power on”

key of adjust remote control) 

(3) 15  Pin D-Sub Jack is connected to the AUTO W/B

EQUIPMENT.

(4) Adjust Process will start by execute I2C Command (Inner

pattern (0xF3, 0xFF).

(5) Adjust Process will finish by execute I2C Command (Inner

pattern (Inner pattern (0xF3,0x00)).

** 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
Pattern off of service mode, and change off -> on.
Enter “W/B ADJUST” by pushing “

G

” key at “3.W/B ADJUST”. 

* 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.

* Don’t push The “IN STOP KEY” after completing the function

inspection.

- 12 -

 

1

 

2

 

3  

Color

Cool

11,000

ºK X=0.276(±0.002)

<Test Signal>

Temperature

Y=0.283(±0.002)

Inner pattern

Medium 9,300

ºK X=0.285(±0.002)

(216Gray,85IRE)

Y=0.293(±0.002)

Warm

6,500

ºK X=0.313(±0.002)

Y=0.329(±0.002)

- 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.

- 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.

- Press “Power on” key of service remocon. (Baud rate :

115200 bps)

- Connect RS232 Signal Cable to RS-232 Jack.
- Write Serial number by use RS-232.
- Must check the serial number at the Diagnostics of SET UP

menu. (Refer to below).

(1) RGB 128Byte

(2) DIGITAL DATA(HDMI-1) 256Byte

(3) DIGITAL DATA(HDMI-2) 256Byte

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

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

(High-Bandwidth Digital Contents Protection)

- Connect D-sub Signal Cable to D-Sub Jack
- Input HDCP key with HDCP-key- in-program
- HDCP Key value is stored on EEPROM (AT24C512) which

is 0x80 addresses of 0xA0 page

- AC off/ on and on HDCP button of MSPG925 and confirm

whether picture is displayed or not of using MSPG925

- HDCP Key value is different among the sets. 

When pressing IN-STOP key by SVC remocon, Red LED are
blinked alternatively. And then Automatically turn off. (Must
not AC power OFF during blinking)

Confirm whether is normal or not when between power
board's ac block and GND is impacted on 1.5kV(dc) or
2.2kV(dc) for one second

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A

B

C

A

B

C

A

B

C