LG 24MP60 Series User manual

CHASSIS :
MODEL : 24MP60
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
SERVICE MANUAL
LED MONITOR
SERVICE MANUAL
LM68A
P/NO : MFL70042601(1701 -REV00)
Internal Use Only

- 2 -
CONTENTS .............................................................................................. 2
SAFETY PRECAUTIONS ........................................................................ 3
SPECIFICATION ....................................................................................... 4
TROUBLE SHOOTING GUIDE .............................................................. 25
BLOCK DIAGRAM ................................................................................. 20
21
EXPLODED VIEW ..................................................................................
DISASSEMBLY ...................................................................................... 22
ADJUSTMENT INSTRUCTION ............................................................... 7
CONTENTS
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes

- 3 -
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the
Schematic Diagram and Exploded View.
It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent
Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
General Guidance
An isolation Transformer should always be usedduring the
servicing of a receiver whose chassis is not isolated from the AC
power line. Use a transformer of adequate power rating as this
protects the technician from accidents resulting in personal injury
from electrical shocks.
It will also protect the receiver and it's components from being
damaged by accidental shorts of the circuitry that may be
inadvertently introduced during the service operation.
If any fuse (or Fusible Resistor) in this TV receiver is blown,
replace it with the specified.
When replacing a high wattage resistor (Oxide Metal Film Resistor,
over 1 W), keep the resistor 10 mm away from PCB.
Keep wires away from high voltage or high temperature parts.
Before returning the receiver to the customer,
always perform an AC leakage current checkon the exposed
metallic parts of the cabinet, such as antennas, terminals, etc., to
be sure the set is safe to operate without damage of electrical
shock.
Leakage Current Cold Check(Antenna Cold Check)
With the instrument AC plug removed from AC source, connect an
electrical jumper across the two AC plug prongs. Place the AC
switch in the on position, connect one lead of ohm-meter to the AC
plug prongs tied together and touch other ohm-meter lead in turn to
each exposed metallic parts such as antenna terminals, phone
jacks, etc.
If the exposed metallic part has a return path to the chassis, the
measured resistance should be between 1 MΩand 5.2 MΩ.
When the exposed metal has no return path to the chassis the
reading must be infinite.
An other abnormality exists that must be corrected before the
receiver is returned to the customer.
Leakage Current Hot Check (See below Figure)
Plug the AC cord directly into the AC outlet.
Do not use a line Isolation Transformer during this check.
Connect 1.5 K / 10 watt resistor in parallel with a 0.15 uF capacitor
between a known good earth ground (Water Pipe, Conduit, etc.)
and the exposed metallic parts.
Measure the AC voltage across the resistor using AC voltmeter
with 1000 ohms/volt or more sensitivity.
Reverse plug the AC cord into the AC outlet and repeat AC voltage
measurements for each exposed metallic part. Any voltage
measured must not exceed 0.75 volt RMS which is corresponds to
0.5 mA.
In case any measurement is out of the limits specified, there is
possibility of shock hazard and the set must be checked and
repaired before it is returned to the customer.
Leakage Current Hot Check circuit
IMPORTANT SAFETY NOTICE
To Instrument's
exposed
METALLIC PARTS
Good Earth Ground
such as WATER PIPE,
CONDUIT etc.
AC Volt-meter
SAFETY PRECAUTIONS
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes

- 4 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
SPECIFICATION
No
Item
Content
Remark
1
Customer
BRAND
2
User Model Name
24MP60
3
Sale region
Refer to Suffix standard
4
Feature
21.5”/ 23.8” / 27” WIDE LCD MONITOR
5 Chassis Name LM68A
6
General
Scope
External SW
&Adj.
Joystick OSD (Menu, Picture Mode, Input, Power off)
Function
OSD,DDC2B,DDC2AB, HDCP, Control Lock,
Original Ratio / Wide, Black level, Smart Energy Saving
Screen Split, SUPER RESOLUTION+，Color Wizard,
Reader mode, LG Color Cloning, Black Stabilizer
7 Input
D-SUB IN RGB Analog
DVI IN DVI IN
HDMI IN HDMI IN
HP OUT Audio L/R OUT
8 Power Cord Length : 1.5±0.05 M Shape : Wall-out
Color : Black
Refer to Suffix
standard and power
cord table
9 Cable
Signal Cable
(D-SUB)
Length : 1.5m
Shape : Detachable Type
Color : Black
Pin : Triple Row, 15 Pin D-Sub
Refer to Suffix
standard
Signal Cable
(HDMI)
Length : 1.5m
Shape : Detachable Type
Color : Black
Pin : 19Pin HDMI
Refer to Suffix
standard

- 5- LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
10 Power
Input: AC100~240V 50~60Hz,1.0A Max ; DC 19V 1.6A;
DC 19V 1.3A
Output: DC 19V 1.3 A
Refer to Suffix
standard
11
Applied Panel List
P/N: EAJ62570001
P/N: EAJ63989601
P/N: EAJ63908401
P/N:
EAJ63953201
LM238WF1-SJE1
LM238WF1-SJK1
MV238FHB-N40
HM238EUN-SLML9
Applied BLU List
P/N: EBV61158009(BLACK)
P/N:EBV61158010(WHITE)
Black color :EBV61158021
White color:EBV61158022
P/N: EBV61158025(BLACK)

- 6- LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
2. Signal Timing(Resolution)
2.1 Signal(Video & Sync)
2.1.2 H/V Timing
MODE CLASSIF
ICATION
Polar
ity
DOT
CLOCK
[MHz]
Frequency
[kHz]/
[Hz]
Total
Period
(E)
Display
(A)
Front
Porch
(D)
Sync.
(C)
Back
Porch
(B)
Resolut
ion
1
H(Pixels)
-
28.321
31.468
900
720
18
108
54
720 X
400
V(Lines)
+
70.08
449
400
12
2
35
2 H(Pixels) - 25.175 31.469 800 640 16 96 48
640 x
480
V(Lines)
-
59.94
525
480
10
2
33
3
H(Pixels)
-
31.5
37.5
840
640
16
64
120
640 x
480
V(Lines)
-
75
500
480
1
3
16
4 H(Pixels) + 40.0 37.879 1056 800 40 128 88
800 x
600
V(Lines)
+
60.317
628
600
1
4
23
5
H(Pixels)
+
49.5
46.875
1056
800
16
80
160
800 x
600
V(Lines) + 75.0 625 600 1 3 21
6 H(Pixels) - 65.0 48.363 1344 1024 24 136 160
1024 x
768
V(Lines)
-
60.0
806
768
3
6
29
7
H(Pixels)
+
78.75
60.023
1312
1024
16
96
176
1024 x
768
V(Lines) + 75.029 800 768 1 3 28
8
H(Pixels)
+
108.0
67.500
1600
1152
64
128
256
1152 x
864
V(Lines)
+
75.000
900
864
1
3
32
9
H(Pixels)
+
108.0
63.981
1688
1280
48
112
248
1280 x
1024
V(Lines) + 60.021066 1024 1 3 38
10
H(Pixels)
+
135.0
79.976
1688
1280
16
144
248
1280 x
1024
V(Lines)
+
75.025
1066
1024
1
3
38
11
H(Pixels) -
146.25
65.290 2240 1680 104 176 280 1680 x
1050
V(Lines) + 59.954 1089 1050 3 6 30
12
H(Pixels) +
148.50
67.502200 1920 88 44 148 1920 x
1080
V(Lines) + 60 1125 1080 4 5 36
D-SUB/DVI DTV Mode is not supported (interlace mode)
gnimiTIMDH. 3.1.2
Factory support
mode
(Preset Mode)
Horizontal
frequency
(KHz)
Vertical
frequency
(Hz)
HDMI
1 480P 31.5 60 O
2 576P 31.25 50 O
3 720P 37.5 50 O
4 720P 45 60 O
5 1080P 56.25 50 O
6 1080P 67.5 60 O
(Recommend Mode)
V ID E O
S Y N C
A
E
DB
C

- 7 -
ADJUSTMENT INSTRUCTION
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
1. Coverage
Apply to 21.5’’/23”/ 24’’/27’’Wide monitor made in Monitor Factory(Kumi Korea) or made in accordance with the
standard of
Kumi Factory process.
2. Appointment
2.1 Adjustment must be done as fixed sequence, and adjustment sequence can be modified after agreement with
the responsible R&D engineer considering mass-production condition.
2.2 Power : AC 100-240V to Adapter, 19Vdc out
2.3Inputsignal:As Product Standard(Signal ROM:
2.4 Warm-up Time : Depends on assemble line(Recommend : Over 5 minutes)
2.5 Adjustment equipment :
White balance equipment : CA-110/210(or equivalent)
Signal Generator : VG-819(or VG828 or equivalent)
PC : More than 486 computer with White balance adjust program.,
HDCP Adjusting Jig equipment.
Etc. : Display Monitor, Oscilloscope
3. Adjustment
3.1 Overview
Use factory automation equipment and adjust automatic movement.
But, do via passivity adjust in error occurrence.
3.2 Adjustment order(refer to the Adjustment standard and adjustment command table)
3.2.1 Board Assembly Line
Connect input signal to 15pin D-sub.
■Ready for adjustment: check whether adjustment command works normally or not and the
operating state of each mode.
Check the display state of gray color when 256 gray scale pattern is embodied.
Read by EEPROM Read Command to check whether initial value is correct or not.
3.2.2 Total Assembly Line

Input analog signal. (
1920x1080
@60Hz)
This model don’t need to input HDCP key, because internal HDCP key is embedded in
scaler IC.
Ready : Warm-up in 5 minutes in the state with signal(depends on line condition)
Connect input signal to D-sub.
Default value before adjustment : Contrast “70” , Brightness “100(Max)”
3.2.3 Adjustment of Horizontal/Verticality screen position, Clock and Phase at each Mode.
There is no special factory mode adjustment.
Writing initial value of EEPROM in Board Assembly line is adjusting Preset Mode and Reset

- 8- LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
mode. (EEPROM is initialized when AC Power is ON first.)
If the change of FOS data is needed after M.P, it is possible by writing Mode Data with
EEPROM write command or modifying the Mode Data in MICOM itself.
# Caution) Must keep power-on more than 3 seconds after AC Power-on first time.
3.2.4 Color coordinates adjustment and Luminance adjustment.
3.2.4.1 Color coordinates adjustment
■Monitor Contrast / Brightness
- Contrast:70
- Brightness :100(Max)
- Energy saving : low
■CA-110: channel: 8 / CA-210: channel
14
■Signal Generator : At cut-off and drive 16 step pattern for ADC
- Output Voltage :700 mVp-p
- Output Mode : Mode 12( 1920x1080+ 60Hz )mode Setting.
3.2.4.2.Adjustment : Board Assembly Line
MP58 model use internal ADC, no need connect D-SUB cable
Internal ADC steps as below
On AC power on with Aging mode, checking the ADC values and then decide to do or not,
If don’t use internal ADC, please follow below step
Input 16 step pattern for ADC (Mode12, pattern 11). (Video level : 700 mVp-p)
Adjust by commanding AUTO_COLOR_ADJUST
Confirm “Success” message in Screen or Check the data of 0x0D, 0x0E address of
EEPROM(0xA8) is 0xAA after waiting 5 seconds
If there is “FAULT” message or the data of 0x0D, 0x0E address of EEPROM(0xA8) is not
0xAA, do adjust again
If all Adjustment is completed, the values of 6500K, User Color and 9300K are saved
automatically.
3.2.4.3. Confirm at Total Assembly Line: adjustment
•Read ADC OFFSET and GAIN flags from 0xA8 0x0D, 0x0E on NVRAM
•If those values are not 0xAA on Aging mode, must do internal ADC calibration.
•If the result of internal ADC calibration is OK, save the ADC result and make the OFFSET
and GAIN flags to 0xAA and make the Internal_ADC flag to INTERNAL.
•Display the result of ADC on Aging Mode OSD and Service OSD

- 9 -LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Check the data of 0x0D, 0x0E address of EEPROM(0xA8) is 0xAA.
If the data of 0x0D, 0x0E address of EEPROM(0xA8) is not 0xAA, do adjust again by
3.2.4.2.
3.2.4.4. Confirm PRESET 6500K Color coordinates and Adjust PRESET 9300K Color coordinates .
Set as Aging mode ON, by commanding AGING_ON/OFF command code.
Select Module that is being used in present production by commanding MODULE SELECT.
Send SYSTEM RESET command to set Module data.
Input Full White Pattern (Video level : 700 mVp-p)
9300K color adjustment
This Model Non TCO-6.0 Appliance.
If this TCO 03 spec should be satisfied later, refer to below method.
Adjust to meet x = 0.287±0.005, y=0.303±0.005 in 5 minutes.
x= 0.285±0.005, y= 0.301±0.005 in 5~30 minutes.
x=0.283±0.005, y=0.298±0.005 over than 30minutes, and confirm.
Adjust to meet Y = over 150cdand confirm
Input Full White Pattern (Video level : 700 mVp-p)
Set as 6500K by commanding COLOR_MODE_CHANGE Command code.
6500K color adjustment
If this TCO 03 spec should be satisfied later, refer to below method.
Adjust to meet x = 0.317 ±0.005, y=0.332±0.005 in 5 minutes.
x= 0.315 ±0.005 , y= 0.331±0.005 in 5~30 minutes.
x=0.313 ±0.005, y=0.329±0.005 over than 30minutes, and confirm.
(Option) It’s another method for 6500K color adjustment at Gumi & NT
At first, check ΔUV. If that is under 0.0065, the set is not adjusted.
If not. It is adjust to meet u’= 0.198±0.0065, v’=0.469±0.0065
Adjust to meet Y = over 200 cd and confirm.
3.2.4.5. Confirm User color coordinates .
Confirm Whether User color is saved same as 6500K.
After confirming Color coordinates, Must return to 6500K
Confirm whether user color is 50. If the value of user color(R/G/B) is 30, do adjust again by
3.2.5 Confirm Operation state.
3.2.5.1 Operation mode : Confirm whether each appointed mode operate correctly or not.
3.2.5.2 Confirmation of Adjustment condition and operation : Confirm whether it meet Auto/Manual
equipement Adjustment standard or not.
■Confirm Analog screen state : Confirm screen state at below mode.
Appointment mode : 640*480 @60Hz (Mode 2), 800*600@75Hz(Mode 5)

-10-LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
1024*768@60Hz(Mode 6), 1280*1024@60Hz(Mode 9)
1680*1050@60Hz(Mode 11)，1920*1080@60HZ(Mode 12)
SMPTE pattern(Check 0%,5%,95%,100%) –Mode can be added.
■Check HDCP signal screen by using Video generator that generate HDCP signal
3.2.5.3. Confirm Auto adjustment operation.
Input Analog 1 Dot on/off & Rectangle Pattern at Mode 12(1920x1080@60Hz)
Confirm adjustment operation by changing Clock, Phase,H/V Position.
Check Clock, Phase by pressing AUTO Key.
Confirm first set of new lot by periods
3.2.5.4 Other quality
■Confirm that each items satisfy under standard condition that was written product spec.
■Confirm Applying Module & MICOM Setting Confirm with Service OSD
Confirm at Service OSD by “Menu + Power key” on .(from Power off)
Confirm first set of new lot by periods, and confirm periodically when there is Process change
or Adjustment setting change.
3.2.5.5. OSD & Adjustment device Confirmation : Confirm operation mentioned as product spec.
Vary Brightness and Contrast and confirm the variation of Luminance and display status.
Operate the Super+ Resolution function and confirm variation of Luminance.
Make sure to do FACTORY RESET after confirmation of OSD function.
3.2.5.6. Confirm the display state by inputting 8 color Bar Pattern & 256 Gray Scale pattern.
3.2.5.7. DPM operation confirmation: Check if Power LED breathing and Power Consumption operates
as standard.
■Measurement Condition : 230V@ 50Hz (Analog)
■Confirm DPM operation at the state of screen without Video Signal.(refer to Spec at Page 11)
3.2.5.8. DDC EDID Write
- Check default EDID Checksum.
- The address of Checksum is 0xEF ( Page: 0xA6)
- Command:0x88 0 0 --Check D-sub default EDID checksum
- 0x88 1 1 --Check DVI default EDID checksum
- 0x88 0 2 --Check HDMI 128 byte default EDID checksum
- 0x88 1 2 --Check HDMI 256 byte default EDID checksum
The default checksum data of each model：Please refer to MP57 MS.
- HDMI part EDID data
- MP55HQ/H does not need input HDMI EDID on the line, F/W include HDMI EDID, aging on
MODE If AC ON, HDMI EDID is automatically loaded to EEPROM(24C02).
- After input D-sub EDID, Please send command “0x77 00 00”&“0x77 00 01” to update the S/N of
DVI&HDMI EDID, and then check the data of 0xF8 address of EEPROM(0xA6) is 0x77

-11-LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Other model if need input EDID on the line, please refer below steps:
Confirm whether module selection is correct or not on the self-diagnostics OSD
with signal cable disconnected.
Connect HDMI Signal Cable to DVI-D wafer.
Write EDID DATA to EEPROM(24C02) by using DDC2B protocol.
Check whether written EDID data is correct or not.
-
.- Analog part EDID data
Connect analog Signal Cable to D-sub wafer.
Write EDID DATA to EEPROM(24C16) by using DDC2AB protocol.
* check the line EEPROM flag ：EEPROM address：A6,FA data：0x1F
If NG ,pls press every key ,then check again.
Key_full_check_IT
_SW_121122.ppt
Check whether written EDID data is correct or not.
(refer to Product spec).
After writing EDID, send Elapsed Time Clear command.
(Elapsed time should not be displayed, after EDID writing)
: Confirm periodically (in the first set of new lot, process change) whether module name and
aging time disappeared on the self-diagnostics OSD with signal cable disconnected.
If Elapsed Time Clear command isn’t executed, module name, aging time and TCO word appear
on the self-diagnostics OSD.(Module name and aging time should not appear after writing EDID)
Make sure to do FACTORY RESET at the final process.
3.2.5.9. Shipping condition

Contrast : 70

Power Switch : Off

Brightness : “100(Max)”

Color Select : custom

Language Select : Refer to product spec.

OSD Position: Match Position with Key position

Power indicator : ON

Sound : ON

Check HDMI Audio headphone function, after check, please set signal source to
RGB Mode by Hand.
3.2.5.10 V-Com Adjustment

-12 -LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
*LGD panel biz need adjusting V-COM by software
Definition: adjusting V-Com level thereby show minimum flicker
Process: By LG cmd , Check Flicker Level and If Can’t meet Flicker spec,
Adjust V-com value through IIC line of panel. If flicker level meet spec, save V-com value at
EEPROM.
Connection Diagram
The type of Probe must be CA-P12/15 or CA-P15
V-com adjustment Spec
Model Flicker level
xxMP58xx ≤20
4. Signal composition for adjustment
4.1 I2C (100K BPS)
4.2 COMMUNICATION START
#Until ACK BIT goes LOW, Repeat it.
4.3 Command form.
Command form use DDC2AB standard communication protocol.
START 6E A 50 ALEN A03 ACMD A00 AVALACS ASTOP
a. LEN : DATA BYTE number to send.
b. CMD : Command language that monitor executes.
c. VAL : FOS DATA
d. CS : Dada’s CHECHSUM that transmit
START 6E A STOP 50Ms

- 13 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
e. DELAY : 50MS
f. A : Acknowledge
4.4 Screen adjust command (LENGTH = 84)
No. Adjustment contents CMD(hex) ADR VAL(hex) Explanation
1 FACTORY ON E0 00 00 Adjustment start
2 SAVE MODE E2 00 00
3 EEPROM ALL INITIAL E4 00 00 adjustment Initialization
4 EEPROM READ E7 Slave
add
At EEPROM Read
5 EEPROM WRITE E8 Slave
add
Data Write data at EEPROM
6 MODE SAVE EA 00 00 Mode Data(FOS) Save
7 COLOR SAVE EB 00
00 User color
01 6500K
02 9300K
10 Tune H Position 20 00 00-? Tune H Position
11 Tune V Position 30 00 00-? Tune V Position
12 Tune CLOCK 90 00 00-? Tune CLOCK
13 Tune PHASE 92 00 00-? Tune PHASE
14 R GAIN 16 00 00-80
Tune Gain15 G GAIN 18 00 00-80
16 B GAIN 1A 00 00-80
17 R OFFSET 80 00 00-80
Tune OFFSET18 G OFFSET 82 00 00-80
19 B OFFSET 84 00 00-80
20 BRIGHT(Backlight) 10 00 00-64 Tune Analog Bright
21 BRIGHT1(Scaler) 11 00 00-64 Tune Digital Bright
22 FACTORY RESET F0 00 00 Factory reset
23 AUTO_COLOR_ADJUST F1 00 0 AUTO COLOR Tuning
0:Auto color
24 COLOR_MODE_CHANGE F2 00
00 User save
01 6500K
02 9300K
03 sRGB

- 14 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
26 Elapsed time Clear E9 00 00 Aging off&Clear elapsed time
27 Aging On/Off
(Page A6: 0xF4) F3 00 FF/00 FF:ON / 00:OFF
28 Input Select F4 00
60
80
90
1:DSUB ANALOG
2:DVI DIGITAL
3:HDMI
29 SYSTEM RESET F5 00 00 Restart System
30 Module Select
(Page A6: 0xF3)
F6 00
PANEL BIZ
0X44
LM215WF3 (22MP58VQ-***X***)
0X21
LM238WF1 (24MP58VQ-***X***)
0X03
LM27OWF5 (27MP58VQ-***X***)
0x4E
PBLGD215ES (22MP58VQ-***K***
(EPA7.0)
0x07
PBLGD270ES
(27MP58VQ-***K***
(EPA7.0)
0x2B
PBLGD238ES (24MP58VQ-***K***
(EPA7.0)
0x2E
LM238WF1SJK1(24MP58VQ-***M
***) (PLUS16)
0x29
MV238FHBN40(24MP58VQ-***D*
**)(BOE)
0x4D
LGM215EB41(24MP58VQ-***D**
*)(BOE)
0x2F
HM238EUNSLML9(24MP58VQ-***
H***)(BM)
0x2B
PBLGD238ES (24MP60VQ-***K***)
（Same with 24MP58VQ***K***）
Normal
0X48
HM215EUN (22MP58VQ-***Y***)
0x30
HM238EUN (22MP58VQ-***Y***)
0x4F
HM215EUNES (
2
2MP58VQ.***S***
(EPA7.0
)
)
0x2C
HM238EUNSLML3(24MP58VQ.***S*
**(EPA7.0 ))

- 15 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
0x50
LM215WF3SLS1 (22MP58VQ.***K*
**(EPA7.0))
31 Select Language 68 00 00-10
17 language
00:English 0C: Ukrainian
01:German 0D : Chinese
02:French 0E : TCH(繁体中文)
03:Spanish 0F : Japanese
04:Italian 10:Korean
05:Swedish 11: Hindi
06:Finnish
07:Fortuguese
08:Bratil
09:Polish
0A:Russian
0B:Greek
32
Vcom*
Only LGD panel biz models need
Internal Pattern ON A7 00 03 OSD Flicker pattern on
Vcom Adjustment A9 00 Value Range (0x00 ~ 0x7F)
Save Vcom vlaue A8 00 00 Save Vcom value in
EEROM for SVC OSD
Internal Pattern Off A7 00 00 OSD Flicker pattern off
33 APD address & value A6 0xFE OFF: 0x00
ON: 0x11
*SAVE
- COLOR SAVE : R/G/B,GAIN & OFFSET
- SYSTEM SAVE : CONTRAST , BRIGHT
4.5. EEPROM Data Write
4.5.1 Siganl TABLE
LEN :84h+Bytes
CMD :E8h
ADH : E2PROM Slave Address(A0,A2,A4,A6,A8,AA,AC,AE), Not 00h(Reserved by Buffer To EEPROM)
ADL :E2PROM Sub Address(00~FF)
Data : Write data
STOP
A
A
A
A
A
50
6E
03
CMD
ADH
84+n
START
ADL
A
CS
A
A
Data 1
A
. . .
Data n
A
Delay 20m

- 16 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Delay : 20ms
4.5.2. Command Set
No.
Adjustment contents CMD(hex
)
LEN Explanation
1 EEPROM WRITE E8 94 16-Byte Write
2 (84+n) n-byte Write
* Use
FOS Default write :
<14mode data> write
SyncFlags,HPeriodH, HPeriodL, VtotalH,VtotalL, SrcHTotalH, SrcHTotalL
SrcHStartH, SrcHStartL, SrcVStartH,SrcVStartL, HsyncPhase
Temporary Data write: Write to particular address of EEPROM.
4.6 E2PROM Data Read
4.6.1 Signal TABLE
----------------------------------------------------------------------
128 Bytes
4.6.2 COMMAND SET
No. Adjustment contents CMD(hex
)
ADH(hex) ADL(hex) Explanation
1 EEPROM READ E7 A0 0 0-Page 0~7F Read
2 80 0-Page 80~FF Read
3 A2 0 1-Page 0~7F Read
4 80 1-Page 80~FF Read
5 A4 0 2-Page 0~7F Read
6 80 2-Page 80~FF Read
7 A6 0 3-Page 0~7F Read
8 80 3-Page 80~FF Read
9 A8 0 4-Page 0~7F Read
10 80 4-Page 80~FF Read
11 AA 0 5-Page 0~7F Read
STOP
A
A
D1
6F
STOP
START
A
A
A
Dn
A
A
A
50
6E
03
CMD
ADH
84
START
A
A
ADL
A
CS
Delay 150ms

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Only for training and service purposes
12 80 5-Page 80~FF Read
13 AC 0 6-Page 0~7F Read
14 80 6-Page 80~FF Read
15 AE 0 7-Page 0~7F Read
16 80 7-Page 80~FF Read
4.6.3 Use
Read E2PROM’s specific area as unit of 128(80h)-byte. ( 84h )
4.6.4 EDID Write
EEPROM access by using DDC2B protocol
1-Byte write
L : 0x00~0x7F
D : data
8-byte write
L : 0x00,0x10,….0x70
4.6.5 EDID Read
DDC2B Command.(A0/A1)
- 128 Byte transfer of EDID Buffer of MICOM
5. Standard of Auto/Manual equipment adjustment
No
.
Item Adjustment & measurement
standard
Operation
mode
Operation
Pattern
Measurement
Position
1 Voltage(V) 5V±0.3V / 3.3V±0.25V,
1.2V±0.07
MODE 12
MSPG : 126
Pattern4 TP of
Each power
2 Color
coordinates
(9300/6500K)
Black
Level Auto AdjustmentMODE 12
MSPG : 126
Pattern 0 Center
of Screen
3 Color
coordinates
(6500K)
DRIVE1 X 0.313±0.005 MODE 12
MSPG : 126
Pattern1
Center
of Screen
Y 0.329±0.005
Color
coordinates
(9300K)
DRIVE2 X 0.283±0.005
Y 0.298±0.005
STOP
STOP
A
A
A
A
A
L
L
A0
A0
….
Data8
D
Data
START
START
A
STOP
A
00
A0
START
A
A
CS
A
Data1
A1
START
. . .
Data128
A
A

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Only for training and service purposes
Luminance 6500K
More than200cd/m2
MODE 12
MSPG : 126
(700 mVp-p)
Pattern1
Center
of Screen
4 Screen
Position
H
FULL SIZE MODE 12
MSPG : 126 Pattern4 Full Screen
V
5
Screen
Compensation
CLOCK
PHASEFULL SIZE MODE 12
MSPG : 126 Pattern 4 Full screen
AUTO FULL SIZE MODE 12
MSPG : 126
Pattern 4 Full screen
6 DPM
Confirmation On Mode
MODE 12
MSPG : 126 note1 White
Sleep Mode ≤0.3W
Pattern 6
Patten 7
Patten 8
White blinking
Off Mode≤0.3W off
7 SOG signal Confirmation Input SOG signal MODE 12
MSPG : 126 Pattern 9 Full screen
8 Gray scale Confirmation Linear gray Scale MODE 12
MSPG : 126 Pattern 9 Full screen
9 Withstanding Voltage
confirmation
When 1500Vac or 2121Vdc is
impressed between the first of
power (Live/Neutral) and
ground (Earth) for 1 second,
check whether something
wrong happens or not.
10 Ground Confirmation
When 25A is impressed
between Earth and 2nd Ground
for 1 second, Resistance must
be less than 0.1 Ω
11 Cutoff /ADC Adjustment Pattern 16 step pattern for ADC
1920 * 1080 (700mVp-p)
MODE 12
MSPG : 126
Patten11
MSPG 29
*Note 1 (Test condition):
- mode12(1920x1080 @60Hz),
- Burst pattern
- 100V ~ 240Vac
- Analog & Digital & HDMI

- 19 -
- After aging 30min
6. Pattern for Adjustment
Pattern 0 : FULL BLACK (State of without video signal )
Pattern 1 : FULL WHITE (Don’t display other Character except for White Pattern)
Pattern 3 : FULL WHITE
Pattern 4 : Cross hatch pattern (Horizontal 10Line, Vertcial 8Line) & Rectangle Pattern
Pattern 5 : 1 Dot on, 1 Dot off & Rectangle Pattern
Pattern 6 : Vertical Sync only input (Use signal cable of which Pin #5 is GND)
Pattern 7 : Horizontal Sync only input (Use signal cable of which Pin #5 is GND)
Pattern 8 : State of without Vertical/Horizontal Sync and Video Signal. (Use signal cable of which Pin #5 is GND)
Pattern 9 : 8 Color Bar Pattern + 16 Gray Level Pattern
Pattern 10 : SMPTE Pattern
Pattern 11 : 16 Gray Step Pattern (700mV)
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes

- 20 -
LGE Internal Use Only
Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
BLOCK DIAGRAM