DOWNLOAD LG 32LG80UR (CHASSIS:LP81G) Service Manual ↓ Size: 2.56 MB | Pages: 32 in PDF or view online for FREE

Model
32LG80UR (CHASSIS:LP81G)
Pages
32
Size
2.56 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
32lg80ur-chassis-lp81g.pdf
Date

LG 32LG80UR (CHASSIS:LP81G) Service Manual ▷ View online

- 9 -
ADJUSTMENT INSTRUCTION
1. Application Range
This spec. sheet is applied all of the 32” LCD TV, LP81G
chassis (HURRICANE 5-Modified) by manufacturing LG TV
Plant all over the world.
2. Specification
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±5°C of temperature and 65±10% of relative humidity if
there is no specific designation.
4) The input voltage of the receiver must keep 100-220V,
50/60Hz.
5) Before adjustment, execute Heat-Run for 15 minutes at RF
no signal.
3. Mstar Main S/W program download
3-1. Preliminary steps
(1) Download method 1  (PCB Assy)
- HD
(2) Connect the download jig to D-sub jack
3-2. Download steps
(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”.
(5).Click “Auto(2)” tab and set as below
(6).click “Run(3)”.
(7).After downloading, check “OK(4)” message.
 
 
( 1 ) 
 
                f i l ex x x .bi n
 
 
     
     f i l ex x x .bi n
(4)
 
.......... OK
)
( 3
( 2 )
 
- 10 -
4. USB DOWNLOAD
4-1. Preliminary steps
(1) Put the USB Stick to the USB socket 
(2) Automatically detecting update file in USB Stick
(3) Select “Start” Button and  press “ok” button
(4) Updating is staring.
(5) After finish firmware update, The TV set reset detect the
update file automatically.
5. Auto Color Balance(ADC)-RGB
* Required Equipments
- Remote controller for adjustment
- MSPG-925F Pattern Generator
5-1. Method of Auto RGB Color Balance
(1) Convert to RGB PC in Input-source
(2) Input the PC 1024x768 @ 60Hz 1/2 Black & White Pattern
into RGB.(MSPG-925F model:60, pattern:54)
(3) Adjust  by  commanding AUTO_COLOR_ADJUST(0xF1)
0x00 0x02 instruction.
5-2. Confirmation
(1) We confirm whether “0xF1 (offset), 0xF2 (gain)” address of
EEPROM “0xBC” is “0xAA” or not.
(2) If “0xF1”, “0xF2” address of EEPROM “0xBC” isn’t “0xAA”,
we adjust once more
(3) We  can confirm the ADC values from “0x00~0x05”
addresses in a page “0xBC”
* Manual ADC process using Service Remocon. After enter
Service Mode by pushing “ADJ” key, execute “Auto-RGB” by
pushing “
G
” key at “Auto-RGB”.
6. Auto Color Balance(ADC)-Component
6-1. Method of Auto Component Color Balance
(Component Gain/ Offset Adjustment)
(1) Convert to Component in Input-source
(2) Input the Component (Which has 720p@60Hz YPbPr
signal : 100% Color Bar into Component. (MSPG-925F
Model: 217/ Pattern: 65 )
(3) Adjust  by  commanding AUTO_COLOR_ADJUST (0xF1)
0x00 0x02 instruction
6-2. Confirmation
(1) We confirm whether “0xF3 (offset), 0xF4 (gain)” address of
EEPROM “0xBC” is “0xAA” or not.
(2) If “0xF3”, “0xF4” address of EEPROM “0xBC” isn’t “0xAA”,
we adjust once more.
(3) We  can confirm the ADC values from “0x06~0x0B”
adresses in a page “0xBC”.
* Manual ADC process using Service Remocon. After enter
Service Mode by pushing “ADJ” key, execute “Auto-RGB” by
pushing “
G
” key at “Auto-RGB”
Before PCBA check, you have to change the Tool option, Area
option and have to AC off/on (Plug out and in)
(If missing this process, set can operate abnormally)
7. Input Tool Option, Area Option
(1) Equipment : adjustment remote control.
(2) Profile : Must be changed the option value because being
different with some setting value depend on
module maker, inch and market.
(3) Adjustment method
The input methods are same as other chassis.(Use IN-
START Key on the Adjust Remocon.)
(If not changed the option, the input menu can differ the
model spec.)
* Refer to Job Expression of each main chassis ass’y
(EBTxxxxxxxx) for Option value  
* Never push the IN-STOP KEY after completing the function
inspection.
** After TOOL Option/ Area Option change, you have to AC
off/oon (Plug out and in)
Before PCBA check , you ha ve to change the Tool opition,
Area option and have to AC off/on (Plug out and in)
(If missing this process, set can operate abnormally)
8. Check S/W version, USB Version
8-1. Method
(1) Push In-start key on Adjust remote-control.
(2) Check “ MainV3.xx USB V3.xx”
9. EDID 
(The Extended Display Identification Data )
/DDC 
(Display Data Channel) 
download
* Caution
Use the proper signal cable for EDID Download
9-1. EDID DOWNLOAD
* Caution:
- Never connect HDMI & D-SUB Cable at the same time.
- Use the proper cables below for EDID Writing
* EDID Data
9-2. EDID DATA - LP81G Model
<Analog : 128bytes>
<HDMI 1 : 256bytes> / <HDMI 2 : 256bytes>
The data is same without Physical address
-> Physical address(F) : HDMI 1 -> 10, HDMI 2 -> 20
- 11 -
Item
Manufacturer ID
Version
Revision
Condition
GSM
Digital : 1
Digital : 3
Data
1E6D
01
03
For HDMI EDID
For RGB EDID
- 12 -
- Detail EDID Options are below (A, B, C, D, E, F) 
A. Product ID
B. Serial No:  Controlled on production line
C. Month, Year: Controlled on production line:
ex)  Monthly: ‘09  ‘09
Year:  ‘2007 ->  ‘11’
D. Model Name(Hex): 
E. Checksum: Changeable by total EDID data
10. HDCP SETTING
(High-Bandwidth Digital Contents Protection)
(1) Connect D-sub Signal Cable to D-Sub Jack
(2) Input HDCP key with HDCP-key- in-program
(3) HDCP Key value is stored on EEPROM(AT24C64) which
is From “0x80” addresses of 0xA0 page
(4) AC off/ on and on HDCP button of MSPG925 and confirm
whether picture is displayed or not of using MSPG925
(5) HDCP Key value is different among the sets.
* Before HDCP Download, you have to Set th Configuration
that CMD delay. -> Configuration -> Option -> I2C(16 Byte
Write : 20ms, 128 Byte Read : 20ms, Read CMD Byte : 0.5ms,
I2C Clock : 45KHz
11. Adjustment of White Balance
(1) Purpose : Adjust the color temperature to reduce the
deviation of the module color temperature.
(2) Principle : To adjust the white balance without the
saturation, Fix the one of R/G/B gain to C0 and
decrease the others.
(3) Adjustment mode : Two modes of Cool and Warm
(Medium data is automatically calibrated by the Cool data)
(4) Required Equipment
1) Remote controller for adjustment 
2) Color Analyzer : CA100+ or CA-210 or same product,
(Should be used in the calibrated ch by CS-1000 (CH9)
3) Auto W/B adjustment instrument(only for Auto
adjustment)
11-1. 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-
run mode when pushing the power on by power only key
- 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/m
2
≥ in the cool mode (For LCD)
11-2. Adjustment of White Balance
(for Manual adjustment)
(1) Adjustment mode : Two modes (Cool and Warm)
(Medium data is automatically calibrated by the Cool data)
(2) Color analyzer(CA100+, CA210) should be used in the
calibrated ch by CS-1000(LCD : CH9, PDP : CH10)
(3) Operate the zero-calibration of the CA100+ or CA-210,
then stick sensor to the module when adjusting.
(4) 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. (If not executed this
step, the condition for W/B may be different.)
2) Push “Exit” key.
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
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.
Model name
Model Name(HEX)
LG TV
00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
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