Read LG 26LC4R (CHASSIS:LP78A) Service Manual online
b. Serial No : Controlled on production line
c. Month, Year : Controlled on production line
c. Month, Year : Controlled on production line
ex) Monthly: '03' => '03'
Year: '2005' => '0F'
d. Model Name(Hex)
e. Checksum (7EH) : Changeable by total EDID data
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)
[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]
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.
5) If the writing is finished, you will see the “OK” message.
6. Adjustment of White Balance
6.1 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 80 and decrease
the others.
the others.
6.2. Adjustment mode
: Two modes of Cool and Warm
(Medium data is automatically calibrated by the cool data)
(Medium data is automatically calibrated by the cool data)
6.3. Required Equipment
(1) Remote control for adjustment
(2) Color Analyzer (CA-110 or CA-210 or same product)
(3) Auto W/B adjustment instrument(only for Auto adjustment)
(2) Color Analyzer (CA-110 or CA-210 or same product)
(3) Auto W/B adjustment instrument(only for Auto adjustment)
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<EDID DATA>
TV set
o r
Main
b / d
RGB
HDMI1
HDMI2
<Fig.5 Connector Diagram of DDC download>
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