LG 32LM620T, Service Manual

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LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
4. Manual Adjustment
* ADC adjustment is not needed because of OTP(Auto ADC
adjustment)
4.1 EDID(The Extended Display Identification
Data)/DDC(Display Data Channel) download
4.1.1. Overview
It is a VESA regulation. A PC or a MNT will display an optimal
resolution through information sharing without any necessity
of user input. It is a realization of "Plug and Play".
4.1.2. Equipment
- Since embedded EDID data is used, EDID download JIG,
HDMI cable and D-sub cable are not need.
- Adjustment remote control
4.1.3. Download method
(1) Press "ADJ" key on the Adjustment remote control then
select "10.EDID D/L", By pressing "Enter" key, enter EDID
D/L menu.
(2) Select "Start" button by pressing "Enter" key, HDMI1/
HDMI2/ HDMI3/ HDMI4/ RGB are writing and display OK
or NG.
4.1.4. EDID DATA
(1) 3D EDID DATA
▪ Reference
- HDMI1 ~ HDMI4 / RGB
- In the data of EDID, bellows may be different by S/W or
Input mode.
ⓐ
. Product ID
ⓑ
. Serial No: Controlled on production line.
ⓒ
. Month, Year: Controlled on production line:
ex) Week : '01' -> '01'
Year : '2012' -> '16' fix
ⓓ
. Model Name(Hex): LGTV
ⓔ
. Checksum: Changeable by total EDID data.
ⓕ
. Vendor Specific(HDMI)
1) Deep color (module 10bit)
2) None deep color (module 8bit)
ⓖ
Colorimetry Data Block(HDMI)
- The Model supporting XvYcc(LM7600)
For Analog For HDMI EDID
D-sub to D-sub DVI-D to HDMI or HDMI to HDMI
HEX EDID Table DDC Function
0001 01 00 Analog/Digital
Chassis MODEL NAME(HEX)
LD22E 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
INPUT MODEL NAME(HEX)
HDMI1 78 03 0C 00 10 00 B8 2D 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
HDMI2 78 03 0C 00 20 00 B8 2D 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
HDMI3 78 03 0C 00 30 00 B8 2D 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
HDMI4 78 03 0C 00 40 00 B8 2D 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
INPUT MODEL NAME(HEX)
HDMI1 78 03 0C 00 10 00 80 2D 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
HDMI2 78 03 0C 00 20 00 80 2D 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
HDMI3 78 03 0C 00 30 00 80 2D 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
HDMI4 78 03 0C 00 40 00 80 2D 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
INPUT MODEL NAME(HEX)
HDMI1 E3 05 03 01
HDMI2 E3 05 03 01
HDMI3 E3 05 03 01
HDMI4 E3 05 03 01
ⓔ
1
ⓔ
2
10 bit/
Xvycc
ⓔ
2
8 bit/
Xvycc
ⓔ
2
10 bit/
none XvYcc
ⓔ
2
8 bit/
none XvYcc
ⓔ
3
HDMI1 43 11 49 15 4D X
HDMI2 43 01 39 05 3D X
HDMI3 43 F1 29 F5 2D X
HDMI4 43 E1 19 E5 1D X
RGB X X X X X 5C