LG 37LG30RA / 37LG32R (CHASSIS:LP81A) Service Manual ▷ View online
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ADJUSTMENT INSTRUCTION
1. Application Range
These instructions are applied to all of the LCD TV, LP81A
Chassis.
Chassis.
2. Notice
2.1 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.
isolation transformer will help protect test instrument.
2.2 Adjustment must be done in the correct order.
2.3 The adjustment must be performed in the circumstance of
2.3 The adjustment must be performed in the circumstance of
25±5°C of temperature and 65±10% of relative humidity if
there is no specific designation.
there is no specific designation.
2.4 The input voltage of the receiver must keep 100~220V,
50/60Hz.
2.5 Before adjustment, execute Heat-Run for 15 minutes at
RF no signal.
3. Adjustment items
3.1 PCB assembly adjustment items
Download the MSTAR main software (IC801, Mstar ISP
Utility)
Utility)
3.2 SET assembly adjustment items
DDC Data input.
Adjustment of White Balance.
Factoring Option Data input
Adjustment of White Balance.
Factoring Option Data input
4. PCB assembly adjustment method
(Using MSTAR Download program)
4.1 S/W program download
4.1.1 Preliminary steps
(1) Download method 1 (PCB Assy)
(1) Download method 1 (PCB Assy)
- HD
- FHD
(2) Connect the download jig to D-sub jack
4.1.2 Download steps
(1) Execute ‘ISP Tool’ program in PC, then a main window
(1) Execute ‘ISP Tool’ program in PC, then a main window
will be opened
(2) Click the connect button and confirm "Dialog Box".
(3) Click the Config button and Change speed
E2PROM Device setting : over the 350Khz
(4) Read and write bin file
Click "(1)Read" tab, and then load download
file(XXXX.bin) by clicking "Read".
file(XXXX.bin) by clicking "Read".
(5).Click "Auto(2)" tab and set as below
(6).click "Run(3)".
(7).After downloading, check "OK(4)" message.
(6).click "Run(3)".
(7).After downloading, check "OK(4)" message.
# USB DOWNLOAD
1. Put the USB Stick to the USB socket
1. Put the USB Stick to the USB socket
2. Automatically detecting update file in USB Stick
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Double click
3. Select "Start" Button and press "ok" button
Updating is staring.
4. Finishing the version updating, you have to put out USB stick
and "AC Power" off
5. After putting "AC Power" on and check updated version on
your TV
4.2 ADC Process
O Required Equipments
- Remote controller for adjustment
- MSPG-925F Pattern Generator
- Remote controller for adjustment
- MSPG-925F Pattern Generator
4.2.1 Method of Auto RGB Color Balance
- Convert to RGB PC in Input-source
- Input the PC 1024x768 @ 60Hz 1/2 Black & White
- Convert to RGB PC in Input-source
- Input the PC 1024x768 @ 60Hz 1/2 Black & White
Pattern(MSPG-925F model:60, pattern:54) into RGB
- Adjust by commanding AUTO_COLOR_ADJUST(0xF1)
0x00 0x02 instruction.
4.2.1.1 Confirmation
- We confirm whether "0xF3 (offset), 0xF4 (gain)" address of
- We confirm whether "0xF3 (offset), 0xF4 (gain)" address of
EEPROM "0xBC" is "0xAA" or not.
- If "0xF3", "0xF4" address of EEPROM "0xBC" isn’t "0xAA",
we adjust once more
- We can confirm the ADC values from "0x06~0x0B"
addresses in a page "0xBC"
*Manual ADC process using Service Remocon. After enter
Service Mode by pushing "ADJ" key, execute "Auto-RGB"
by pushing "_" key at "Auto-RGB".
by pushing "_" key at "Auto-RGB".
4.2.2 Component input ADC
4.2.2.1 Component Gain/Offset Adjustment7
- Convert to Component in Input-source
- Input the Component ( Which has 720p@60Hz YPbPr
4.2.2.1 Component Gain/Offset Adjustment7
- Convert to Component in Input-source
- Input the Component ( Which has 720p@60Hz YPbPr
signal : 100% Color Bar (MSPG-925F Model : 217 / Pattern:
65 ) into Component.
65 ) into Component.
- Adjust by commanding AUTO_COLOR_ADJUST (0xF1)
0x00 0x02 instruction
4.2.2.2 Confirmation
- We confirm whether "0xF3 (offset), 0xF4 (gain)" address of
- We confirm whether "0xF3 (offset), 0xF4 (gain)" address of
EEPROM "0xBC" is "0xAA" or not.
- If "0xF3", "0xF4" address of EEPROM "0xBC" isn’t "0xAA",
we adjust once more
- We can confirm the ADC values from "0x06~0x0B"
addresses in a page "0xBC"
*Manual ADC process using Service Remocon. After enter
Service Mode by pushing "ADJ" key, execute "Auto-RGB"
by pushing "_" key at "Auto-RGB".
by pushing "_" key at "Auto-RGB".
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5. Adjusting the White Balance
5.1 Purpose and Principle for adjustment of the
color temperature
- 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.)
5.2 Adjustment mode : Two modes of Cool and Warm
(Medium data is automatically calibrated by the
Cool data)
O Required Equipments
- Remote controller for adjustment
- Color Analyzer : CA100+ or CA-210 or same product
- Remote controller for adjustment
- Color Analyzer : CA100+ or CA-210 or same product
LCD TV( ch : 9 ),
- Auto W/B adjustment instrument(only for Auto adjustment)
5.3 Connecting diagram of equipment for
measuring (For Automatic Adjustment)
(1) Enter the adjustment mode of DDC
- Set command delay time : 50ms
- Enter the DDC adjustment mode at the same time heat-
- Maintain the DDC adjustment mode with same condition
- Enter the DDC adjustment mode at the same time heat-
- 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(F3 00 00) 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, FF)
* Luminance min value is 200cd/ß≥ in the cool mode( For
LCD)
6. Adjustment of White Balance
• Adjustment mode : Two modes (Cool and Warm)
(Medium data is automatically calibrated by the Cool data)
• Color analyzer(CA100+, CA210) should be used in the
(Medium data is automatically calibrated by the Cool data)
• Color analyzer(CA100+, CA210) should be used in the
calibrated ch by CS-1000
(LCD : CH9, PDP : CH10)
• 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 15 minutes.
longer than 15 minutes.
(If not executed this step, the condition for W/B may be
different.)
different.)
2) Push "Exit" key.
3) Change to the AV mode by remote control.(Push front-AV
3) Change to the AV mode by remote control.(Push front-AV
or Input key)
4) Input external pattern(85% white pattern)
5) Push the ADJ key two times (entering White Balance
5) Push the ADJ key two times (entering White Balance
mode)
6) Stick the sensor to the center of the screen and select
each items (Red/Green/Blue Gain and Offset) using
D
/
E
(CH +/-) key on R/C..
7) Adjust R/ G/ B Gain using
F
/
G
(VOL+/-) key on R/C.
8) Adjust two modes (Cool and Warm)
(Fix the one of R/G/B and change the others)
9) When adjustment is completed, Exit adjustment mode
using EXIT key on R/C.
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