LG 42PG20R-TA (CHASSIS:PP81A) Service Manual ▷ View online
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6-2. 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”.
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.
7. EDID(The Extended Display
Identification Data) / DDC
(Display Data Channel) Download
[ Caution
- Use the proper signal cable for EDID Download
- Never connect HDMI & D-SUB Cable at the same time.
- Use the proper cables below for EDID Writing
- Never connect HDMI & D-SUB Cable at the same time.
- Use the proper cables below for EDID Writing
7-1. Profile:
To be possible for plug and play
7-2. Equipment
(1) Adjusting PC with S/W for writing EDID Data.(S/W: EDID
TESTER Ver.2.5)
(2) A Jig for EDID Download
(3) Cable : Serial(9Pin or USB) to D-sub 15Pin cable, D-sub
(3) Cable : Serial(9Pin or USB) to D-sub 15Pin cable, D-sub
15Pin cable, DVI to HDMI cable.
7-3. Connection Structure
Caution: Never connect HDMI & D-SUB Cable at the same time.
7-4. EDID Data
O
XGA EDID DATA
<Analog : 128bytes>
<Fig. 3> Connection Diagram of DDC Download
1
2
3
Manufaturer
Version
Revision
GSM
Digital : 1
Digital : 3
1E6D
01
03
Condition
Item
No
Hex Data
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<HDMI 1 : 256bytes>
<HDMI 2 : 256bytes>
<HDMI 3 : 256bytes>
O
Detail EDID Options are below (
ⓐ, ⓑ, ⓒ, ⓓ, ⓔ)
ⓐ Product ID
ⓑ Serial No
=> Controlled on production line
ⓒ Month, Year
=> Controlled on production line:
ex) Monthly: ‘11’ -> ‘0B’
Year: ‘2007’ -> ‘11’
ⓓ Model Name(Hex)
ⓔ Checksum
=> Changeable by total EDID data
* Ananlog(128Byte)
1)
2)
*HDMI 1/2/3 (256Byte)
1)
A
B
42PG20R-TA
50PG20R-TA
Product ID
Model Name
EDID table
219D
229D
D0C3
D1C3
Hex
9D21
9D22
C3D0
C3D1
DEC
40265(A)
40266(D)
50128(A)
50129(D)
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7-5. Preparation for Adjustment
(1) As above Fig. 3, Connect the Set, EDID Download Jig,,
PC & Cable
(2) Turn on the PC & EDID Download Jig. And Execute the
S/W : EDID TESTER Ver.2.5
(3) Set up the S/W option
Repeat Number : 5
Device Address : A0
PageByte : 8
Device Address : A0
PageByte : 8
(4) Power on the Set
1) Sequence of Adjustment
1. DDC data of Analog-RGB
(1) Init the data
(2) Load the EDID data.(Open File).
[Analog - RGB : PP81A_RGB.ANA]
[Digital - HDMI1 : PP81A_HDMI1.DVI]
[Digital - HDMI2 : PP81A_HDMI2.DVI]
[Digital - HDMI3 : PP81A_HDMI3.DVI]
[Digital - HDMI1 : PP81A_HDMI1.DVI]
[Digital - HDMI2 : PP81A_HDMI2.DVI]
[Digital - HDMI3 : PP81A_HDMI3.DVI]
(3) Set the S/W as below.
(4) Push the “Write Data & Verify” button. And confirm “Yes”.
(5) If the writing is finished, you will see the “OK” message.
8. HDCP
(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 Main M-STAR
(2) Input HDCP key with HDCP-key- in-program
(3) HDCP Key value is stored on Main M-STAR
IC(LGE6891DD) which is 0x80~0x90 addresses of
0x00~0x01 page(EEPROM MAP PAGE0~PAGE1 /
START :A080)
0x00~0x01 page(EEPROM MAP PAGE0~PAGE1 /
START :A080)
(4) Play the Equipment(DVD Player) included HDCP Key and
confirm whether picture is displayed or not of using DVD
Player.
Player.
(5) HDCP Key value is different among the sets
Open File
Open File
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9. Adjustment of White Balance
9-1. Purpose and Principle for Adjustment
of the Color Temperature
(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.
the others.
(3) Adjustment mode: Two modes of Cool and Warm
(Cool data is automatically calibrated by the Medium data)
9-2. Required Equipment
(1) Remote controller for adjustment
(2) Color Analyzer : CA-100+ or CA-210 or same product
(2) Color Analyzer : CA-100+ or CA-210 or same product
- PLASMA TV(ch : 10)
(3) Auto W/B adjustment instrument(only for Auto adjustment)
- Do the white balance adjustment under the 10LUX
[ Notice: When using the Color Analyzer with PDP,
recommend the CA-100 more than CA-210.
If CA-100 can not available, it is also good to use the CA-210.
If CA-100 can not available, it is also good to use the CA-210.
(4) PC (for communication through RGB)
(5) Pattern Generator (MSPG-925FA etc.)
(5) Pattern Generator (MSPG-925FA etc.)
-Before white balance, press the ADJ key 2times and do
the reset like Fig. 4
-To enter White-balance mode, press the ADJ key 2times.
[ Caution: System control Host should be “DDC” for adjustment.
9-3. Connecting Diagram of Equipment for
Measuring
(For Automatic Adjustment)
(1) Enter the adjustment mode of the white balance
- Enter the white balance adjustment mode at the same time
heat-run mode when pushing the power on by power only
key
key
- Maintain the white balance adjustment mode with same
condition of Heat-run
- Maintain after AC off/on in status of Heat-run pattern display
(2) Release the white balance 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)
(3) Enter the adjust mode of white balance
- Enter the white balance adjustment mode with aging
command(F3, 00, FF)
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Color Temperature & Color Coordinates Setting
- When adjusting the Color Temperature, Color Analyzer CA-
210(Matrix should be corrected through CH10 of CS-1000)
should be used. When CA-210 have used, it don’t need to fit
the CH10.
should be used. When CA-210 have used, it don’t need to fit
the CH10.
- Adjust the Color Temperature based below adjustment color
coordinates.
O
Target Value CA-210(PDP : CH10), CA-100(PDP)
(Standard color coordinate and temperature when using the
CA-100+ or CA210 equipment)
CA-100+ or CA210 equipment)
O
Synchronization relation between PSM and CSM
<Fig. 4>
Color Coordinate
x
y
0.293±0.002
0.329±0.002
9,300K
6,500K
0.000
0.003
0.285±0.002
0.313±0.002
MEDIUM
WARM
Mode
Temp
uv
CSM
Remark
Cool
Warm
Vivid
Mild
PSM
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