LG 55EA970T, Service Manual

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LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
4.4.1. Profile
Must be changed the option value because being different with
some setting value depend on module maker, inch and market
4.4.2. Equipment
Adjustment remote control
4.4.3. Adjustment method
The input methods are same as other chassis.(Use ADJ Key
on the Adjust Remocon.)
(If not changed the option, the input menu can differ the model
spec.)
Refer to Job Expression of each main chassis ass’y
(EBTxxxxxxxx) for Option value
Caution : Don’t Press “IN-STOP” key after completing the
function inspection.
4.5. EDID D/L method
Recommend that don’t connect HDMI and RGB(D-SUB) cable
when downloading the EDID.
If not possible, recommend that connect the MSPG equipment.
There are two methods of downloading the edid data
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”
4.5.1. 1st Method
EDID datas are automatically downloaded when adjusting the
Tool Options.
Automatically downloaded when pushing the enter key after
adjusting the tool option5.
It takes about 2seconds
4.5.2. 2nd Method
● Caution : Must be checked that the tool option is right or not.
If tool option is wrong, hdmi edid data could not be
downloaded well.
1) Press the ADJ key
2) Move to the 10. EDID D/L and Press the right direction
key(►)
3) Press the right direction key(►) at Start.
4) After about a few seconds, appear “Waiting..” => “OK”, then
compele.
4.5.3. RS-232C command Method
1) Command : AE 00 10
● Caution : Don’t connect HDMI and RGB(D-SUB) cable when
downloading the EDID.
If the cables are connected, Downloading of edid
could be failed
4.5.4. EDID data
4.5.4.1. HDMI(FHD 3D_Deep color support)
1) HDMI 1 Check sum : 0XE8, 0X81 (CEA Block 0x1E :10)
2) HDMI 2 Check sum : 0XE8, 0X71 (CEA Block 0x1E :20)
3) HDMI 3 Check sum : 0x E8, 0X61 (CEA Block 0x1E :30)
3) HDMI 4 Check sum : 0x E8, 0X51 (CEA Block 0x1E :40)
4.6. ADC Calibration : Comp 480i/Comp 1080p/RGB
4.6.1. ADC Calibration : Internal Auto ADC
ADC calibration is not necessary because MAIN SoC
(LGExxxx) is already calibrated from IC Maker
4.6.2. Manual ADC Calibration
4.6.2.1. Equipment & Condition
(1) Adjustment Remocon
(2) 801GF (802B, 802F, 802R) or MSPG925FA Pattern
Generator
- Resolution: 480i Comp1 (MSPG-925FA: model-209,
pattern-65)
- Resolution: 1080p Comp1 (MSPG-925FA: model-225,
pattern-65)
- Resolution : 1080p RGB (MSPG-925FA: model-225,
pattern-65)
- Pattern : Horizontal 100% Color Bar Pattern
- Pattern level: 0.7±0.1 Vp-p