LG 42PG3000 Service Manual page 8

8. EDID
(The Extended Display Identification Data )
/DDC
(Display Data Channel)
8-1. Required Test 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
15Pin cable, DVI to HDMI cable.
8-2. Required Test Equipment
(Fig.5) Connection Diagram of DDC download
8-3. Preparation for Adjustment
(1) Connect the Set, EDID Download Jig, PC & Cable.
(2) Turn on the PC & EDID Download Jig. Set up the S/W
option.
(3) Power on the Set.
8-4. Sequence of Adjustment
(1) EDID Download
1) Init the data.
2) Load the EDID data.(Open File).
[ Analog file ] (for RGB)]
[ Digital file ] (for HDMI)
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.
6) If TV has three HDMI INPUT, you must download three
times for each HDMI.
Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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8-5. EDID DATA
1) Analog-RGB.
[3]
[4]
=> Detail EDID Options are below([1],[2],[3],[4],[5])
1.[1]-Product ID
Model Name Product ID
40193
42PG3000
2. [2]-Serial No : Controlled on production line.
3. [3]-Month, Year : Controlled on production line.
4. [4]-Model Name : model name.
5. [5]-Checksum -> Changeable by total EDID data.
Model Name
00 00 00 FC 00 34 32 50 47 33 30 30 30 0A 20 20 20 20
42PG3000
2) HDMI_1.
[3]
=> Detail EDID Options are below([1],[2],[3],[4],[5])
1.[1]-Product ID
Model Name Product ID
42PG3000 40194
2. [2]-Serial No : Controlled on production line.
3. [3]-Month, Year : Controlled on production line.
4. [4]-Model Name : model name.
Model Name
42PG3000 00 00 00 FC 00 34 32 50 47 33 30 30 30 0A 20 20 20 20
5. [5]-Checksum -> Changeable by total EDID data
[1]
Product ID
Hex EDID table
9D11 019D
ex) Monthly: '03' => '03'
Year : '2006' => '10'
Model Name(Hex)
[1]
[4]
Product ID
Hex EDID table
9D02 029D
ex) Monthly: '03' => '03'
Year : '2006' => '10'
Model Name(Hex)
LGE Internal Use Only
[2]
[5]
[2]
[5]
[5]