Read LG 42LC42 (CHASSIS:LP78A) Service Manual online
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=> Detail EDID Options are below(a, b, c, d, e)
a. Product ID
b. Serial No : Controlled on production line
c. Month, Year : Controlled on production line
c. Month, Year : Controlled on production line
ex) Montly: '03' => '03'
Year: '2005' => '0F'
d. Model Name(Hex):
e. Checksum (7EH) : Changeable by total EDID data
5.1. 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
3) Cable : Serial(9Pin or USB) to D-sub 15Pin cable, D-sub
15Pin cable, DVI to HDMI cable
5.2. Preparation for Adjustment
1) As above Fig. 5, 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
5.3. Sequence of Adjustment
(1) DDC data of Analog-RGB
1) Init the data
2) Load the EDID data.( Open File ).
3) Set the S/W as below.
[Analog-RGB : LP78A_RGB.ANA ]
[Digital-HDMI1 : LP78A_HDMI1.DVI ]
[Digital-HDMI2 : LP78A_HDMI2.DVI ]
[Digital-HDMI1 : LP78A_HDMI1.DVI ]
[Digital-HDMI2 : LP78A_HDMI2.DVI ]
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