LG 32BL95U User manual

P/NO :
CHASSIS :
MODEL :
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
SERVICE MANUAL
Copyright © 2018 LG Electronics Inc. All rights reserved. Only training and service purposes.
CONFIDENTIAL
P/NO : MFL70211509 (1810-REV00)
LED MONITOR
SERVICE MANUAL
LM80G
32BL95U

- 2 - Copyright © LG Electronics Inc. All rights reserved.
Only training and service purposes.
CONTENTS .............................................................................................. 2
SAFETY PRECAUTIONS ........................................................................ 3
SPECIFICATION ....................................................................................... 4
ADJUSTMENT INSTRUCTION ................................................................ 7
BLOCK DIAGRAM ................................................................................... 21
EXPLODED VIEW .................................................................................... 22
DISASSEMBLY ........................................................................................17
TROUBLE SHOOTING GUIDE .............................................................. 23
CONTENTS

- 3 - Copyright © LG Electronics Inc. All rights reserved.
Only training and service purposes.
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the
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 used during 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 check on 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

- 4 - Copyright © LG Electronics Inc. All rights reserved.
Only training and service purposes.
SPECIFICATION
No Remark
1BRAND : LGE Product
2
3
4
5PCB, Product spec., Adjustment
Genera
l
External SW
& Adj. Joystick switch Up / Down / Left / Right / OK (Power) Press and Hold : Power off
Scope Function
6Picture Mode, Ratio, S.E.S, Six Color, On Screen
Control,Dual Controller, Factory calibration, PBP
Sale region Worldwide
Feature 31.5”LCD MONITOR (Nano-IPS,UHD,4side Edge)
Chassis Name LM80G
Item Content
Customer BRAND
User Model Name 32UL950
Input HDMI IN
/ DP IN
Output TBT IN *PD : Power delivery
USB DN Up to 5V 1.1A DC
H/P OUT
SPEAKER
O
Length 1.55±0.05m:
Weight 0.17kg ± 10%,
Color White
Length
15±005m
P/N : EAD63932603
Refer to Suffix standard and
power cord Table.
8 Power Cord
,,y,
7
HDMI(2.0)
DisplayPort(1.4)
Thunderbolt(Ver.3) *2ea / PD : 60W, 15W
USB 3.0 Downstream x 2
Audio L/R
Audio L/R
L
eng
th
1
.
5
±
0
.
05
m
P/N
:
EAD63932603
Weight 0.06kg ± 10%, (Refer to BOM)
Color White
Length
Weight
Color
Length 1.5m±0.05m P/N : EAD63988302
Weight 0.06kg ± 10% (Refer to BOM)
Color White
1) CABLE : 90Ω±5Ω
bl
USB Type-C
USB A To C
Gender
Thunderbolt
Impedance
2) CONNECTOR : 90Ω±10Ω
Length 1.50m±0.05m P/N : EAD63749403
Weight 0.10kg ± 10% (Refer to BOM)
Color White
1) CABLE : 100Ω±5Ω
2) CONNECTOR : 100Ω±10Ω
Length 1.50m ± 0.05m P/N : EAD63954402
Weight 0.09kg ± 10% (Refer to BOM)
Color White
1)CABLE : 100Ω±5
Ω
9 Cable
Impedance
DisplayPort
Impedance
HDMI
Impedance
1)CABLE
:
100Ω 5Ω
2)CONNECTOR : 100Ω±10Ω
P/N : EAY65068601
(Refer to BOM)
11 Request to regulation team
12 P/N : TBD
P/No Specification 31.5”,Nano-IPS,UHD,4side Edge
EAJ64608201 LM315WR2-SSA1 Maker : LG Dis
p
la
y
Power Rating 19.5 V / 9.0 A
Accessory Box Weight : 0.8 kg
13 Applying module list
10 Power (Adapter /
PSU /LPB)
Input: 100-240V~ 50/60Hz 3A Max
Output: 19.5 V / 10.8 A
Color : White, Weight : 0.67kg±10%, without vinyl
b
Adapter Name : ACC-LATP1
Vendor : Honor
I
mpe
d
ance
EAJ64608201
LM315WR2 SSA1
Maker
:
LG
Display

- 5 - Copyright © LG Electronics Inc. All rights reserved.
Only training and service purposes.
2. Signal Timing (Resolution)
1) Signal (Video & Sync)
i. Display Port & Thunderbolt / USB-C
Mode section polarity Dclk[MHz] Frequency
[kHz]/[Hz]
Total
Period Display Front Porch Sync. Back Porch Resolution Remark
H(Pixels) - 31.469 800 640 16 96 48
V(Lines) - 59.94 525 480 10 2 33
H(Pixels) + 37.879 1056 800 40 128 88
V(Lines) + 60.317 628 600 1 4 23
H(Pixels) - 48.363 1344 1024 24 136 160
V(Lines) - 60 806 768 3 6 29
H(Pixels) + 54.347 1472 1152 32 96 192
V(Lines) + 60.05 905 864 1 3 37
H(Pixels)
+
45
1650
1280
110
40
220
1280 x
365 1024 x
768
4 79.99 1152 x
864
1 25.175 640 x 480
240 800 x 600
H(Pi
xe
l
s
)
+
45
1650
1280
110
40
220
V(Lines) + 60 750 720 5 5 20
H(Pixels) - 49.702 1680 1280 72 128 200
V(Lines) + 59.81 831 800 3 6 22
H(Pixels) + 63.981 1688 1280 48 112 248
V(Lines) + 60.02 1066 1024 1 3 38
H(Pixels) + 60 1800 1600 24 80 96
V(Lines) + 60 1000 900 1 3 96
H(Pixels) + 67.5 2200 1920 88 44 148
V(Lines) - 60 1125 1080 4 5 36
H(Pixels)
+
133 32
2080
1920
48
32
160
9 148.5 1920 x
1080
1920 x
7 108 1280 x
1024
8 108 1600 x
900
5 74.25
1280
x
720
6 83.5 1280 x
800
H(Pixels)
+
133
.
32
2080
1920
48
32
160
V(Lines) - 60 2222 2160 54 5 3
H(Pixels) + 88.79 2720 2560 48 32 80
V(Lines) - 59.95 1481 1440 3 5 33
H(Pixels) + 66.66 4000 3840 8 144 8
V(Lines) - 30 2222 2160 54 5 3
H(Pixels) + 133.32 4000 3840 8 144 8
V(Lines) - 60 2222 2160 54 5 3
* (1) : DP/USB-C/TBT Preferred timing.
13(1) 533 3840 x
2160
11 241.5 2560 x
1440
12 266.64 3840 x
2160
10 277.25
1920
x
2160 PBP Only

- 6 - Copyright © LG Electronics Inc. All rights reserved.
Only training and service purposes.
Mode section polarity Dclk[MHz] Frequency
[kHz]/[Hz]
Total
Period Display Front Porch Sync. Back Porch Resolution Remark
H(Pixels) -31.469 800 640 16 96 48
V(Lines) -59.94 525 480 10 2 33
H(Pixels) +37.879 1056 800 40 128 88
V(Lines) +60.317 628 600 1 4 23
H(Pixels) -48.363 1344 1024 24 136 160
V(Lines) -60 806 768 3 6 29
H(Pixels) +54.347 1472 1152 32 96 192
V(Lines) +60.05 905 864 1 3 37
H(Pixels)
+
45
1650
1280
110
40
220
1 25.175 640 x 480
42 0 800 x 600
63 5 1024 x
768
4 79.99 1152 x
864
1280 x
H(Pi
xe
l
s
)
+
45
1650
1280
110
40
220
V(Lines) [phone]
H(Pixels) -49.702 1680 1280 72 128 200
V(Lines) +59.81 831 800 3 6 22
H(Pixels) +63.981 1688 1280 48 112 248
V(Lines) +60.02 1066 1024 1 3 38
H(Pixels) [phone] 96
V(Lines) [phone]
H(Pixels) +67.5 2200 1920 88 44 148
V(Lines) -60 1125 1080 4 5 36
H(Pixels)
+
133 29
2080
1920
48
32
160
5 74.25
1280
x
720
6 83.5 1280 x
800
7 108 1280 x
1024
8 108 1600 x
900
9 148.5 1920 x
1080
1920 x
H(Pixels)
+
133
.
29
2080
1920
48
32
160
V(Lines) -60 2222 2160 54 5 3
H(Pixels) +88.79 2720 2560 48 32 80
V(Lines) -59.95 1481 1440 3 5 33
H(Pixels) +67.5 4400 3840 176 88 296
V(Lines) -30 2250 2160 8 10 72
H(Pixels) [phone] 88 296
V(Lines) -60 2250 2160 8 10 72
* (1) : HDMI2.0 Preferred timing. , HDMI ULTRA Deep Color : ON
(
2
)
: HDMI1.4 Preferred timin
g
.
,
HDMI ULTRA Dee
p
Color : OFF
10 277.25
1920
x
2160 PBP Only
11 241.5 2560 x
1440
12 (2) 297 3840 x
2160
13 (1) 594 3840 x
2160
(2)
:
HDMI1
.
4
Preferred
timing
.,
HDMI
ULTRA
Deep
Color
:
OFF
) H D M I V id eo in pu t (R efe r to M anu al)
Factory sup port
m ode
H o riz on ta l
freque ncy
Vertical
freque ncy
(P re set M o de ) (K H z) ( H z)
1 480P 31.5 60 Pass
2 720P 45 60 Pass
3 1080P 67.5 60 Pass
4 2160P 135 60 Pass
Result
2
ii. HDMI

- 7- Copyright © LG Electronics Inc. All rights reserved.
Only training and service purposes.
ADJUSTMENT INSTRUCTION
1. Application
1.1 This document is applied to LM80E chassis 32” LCD Monitor which is manufactured in Monitor Factory or is produced on the
basis of this data.
1.2 Manufacturing Type : Set
2. Designation
2.1 The adjustment is according to the order which is designated and which must be followed, according to the plan which can be
changed only on agreeing.
2.2. Power Adjustment: Free Voltage
2.3. Magnetic Field Condition: Nil.
2.4. Input signal Unit: Product Specification Standard
2.5. Reserve after operation: Above 5 Minutes (Heat Run)
Temperature : at 25℃±5°C
Relative humidity : 65 ±10%
Input voltage : 100 ~ 240V, 50/60Hz
2.6. Adjustment equipments: Color Analyzer (CA-210 or CA-110), DDC Adjustment Jig equipment,
3. Main PCB check process
* APC - After Manual-Insult, executing APC
3.1 ADC Process
1) 32UL950 doesn’t need ADC process because it has only digital input like TBT, DisplayPort and HDMI.
3.2 EDID Process
3.2.1 EDID Download
F/W includes default EDID for All input ports, aging on Mode If AC ON, default EDID is automatically loaded to EEPROM.
Update serial number in EDID of HDMI1.
☞Caution: Never connect HDMI Cable when execute NVRAM Init and AC On at first for downloading HDMI EDID
automatically.

- 8- Copyright © LG Electronics Inc. All rights reserved.
Only training and service purposes.
No Item Content Remark
1 Manufacturer ID GSM Hex : 1E 6D
2 Product ID
HDMI : 30470
DP : 30471
Thunderbolt : 30498
Hex : 77 06
Hex : 77 07
Hex : 77 22
3 Year / Week Year : 1C (2018 year)
Week : 1 (1 week)
Inserted at Production Line
(Variable data)
4 Version 1 EDID Version
5 Revision
HDMI : 3
DP / TBT : 4 EDID Revision
6 Serial Number SET Serial Number Inserted at Production Line
(Variable data)
7 Model Name LG HDR 4K
** Protocol : DDC 2AB
3.3 Function Check
3.3.1 Check Screen
■Check input and signal items. (cf. work instructions)
1. HDMI1 (3840 x 2160 @60Hz)
2. DisplayPort1.2 (3840 x 2160 @60Hz) - using PC
3. Thunderbolt (3840 x 2160 @60Hz) - using PC
4. Total Assembly line process
4.1 Write HDCP Key
Write HDCP Key into EEPROM by using DDC2AB protocol & HDCP2.2 Adjustment Jig equipment.
If error is occurred, try to write again.
After download HDCP key, send command ‘0xE6 00 00’ for loading RAM memory correctly.

- 9- Copyright © LG Electronics Inc. All rights reserved.
Only training and service purposes.
4.2 Peak Luminance check
Check that the peak luminance is above the Limit Spec.
VESA HDR Tier HDR400 HDR600 HDR1000
Limit Luminance 400cd/m² 600cd/m² 1000cd/m²
4.3 White balance adjustment
Adjust PRESET Warm(6500K) Color coordinates and Gamma calibration.
Set the CA-210 for calibration.
Input Gamma calibration Pattern (R,G,B, Grey 20 )
Set as Warm(6500K) by commanding COLOR_MODE_CHANGE Command code.
Gamma calibration and verify
Warm(6500K) color adjustment
Adjust to meet x/y color coordinate as below.
2~4
min 4~8min 8~10min 10~25min 25~40min 40min~
x 0.318 0.318 0.317 0.316 0.314 0.313
y 0.339 0.338 0.337 0.334 0.332 0.329
Save Warm(6500K) Color by commanding COLOR SAVE Command code.

- 10 - Copyright © LG Electronics Inc. All rights reserved.
Only training and service purposes.
Insert HDMI 1 Jack which is connected with PC for White Balance or equivalent device.
ÎTotal Assembly line should check whether the color coordinate(x,y) data refer to below table were meet or not.
Color
Temperature
Cool 9,300k °K X=0.283 (±0.03)
Y=0.298 (±0.03)
<Test Signal>
Inner pattern
(255gray,100IRE)
Medium 8,000k °K X=0.295 (±0.03)
Y=0.305 (±0.03)
Warm 6,500k °K X=0.313 (±0.015)
Y=0.329 (±0.015)
Luminance
(cd/㎡)
Cool Min : 170
<Test Signal>
Inner pattern
(255gray,100IRE)
Medium Min : 200
Warm Min : 260
*Note : x,y coordinates are drifted about 0.007 after 30 mins heat-run. So checking color coordinate within 5-min at total
assembly line, consider x,y coordinates might be up to 0.007 than x,y target of each color temperature. ..
*Note : Manual W/B process
1) Power off => Power on( ‘Å’ 3 times, ‘Æ’ 1 time and push ‘◎’)
2) and push the “Å” or “Æ”.
3) In Service Menu.
※When doing Adjustment, Please make circumstance as below.
4.4 DPM Operation check
■Measurement Condition: 100~240V@ 50/60Hz
1) Set Input to DisplayPort, HDMI
2) Go to the “Sleep Mode” on the host-side
3) Check DPM operation refer to the below table.
Operating Condition Sync (H/V) or Video EUT (MSPG6100) LED(SET) Wattage(W)
Sleep mode Off/Off Off Off 1.2
Off mode - - Off 0.3

- 11 - Copyright © LG Electronics Inc. All rights reserved.
Only training and service purposes.
5. Shipping condition
Item Content& Outgoing Condition Remark
Source HDMI
Power Switch (Joystick Key) OFF
Quick
Settings
Brightness 100
Contrast 70
Volume 30
Input
Input List HDMI
Aspect Ratio Full Wide
PBP Off( )
Picture
Picture Mode Custom
Picture
Adjust
Brightness 100
Contrast 70
Sharpness 50
SUPER
RESOLUTION+ Off
Black Level
OSD is activated at HDMI input.
Depends on HDMI input video
signal format
(RGB: High) / (YUV: Low)
DFC Off
Uniformity Off
Game
Adjust
Response Time Fast
FreeSync Off
Black Stabilizer 50
Color
Adjust
Gamma Mode 2
Color Temp Custom
Red 50
Green 50
Blue 50
Six Color (Hue /
Saturation)
Color Hue : 50
Color Saturation : 50
Color : Red, Green, Blue,
Cyan, Magenta, Yellow
Picture Reset No
General
Language English Depend on the sale region
SMART ENERGY SAVING Low
Power LED Off
Automatic Standby Off (Others)
4H (Europe)
Depend on the sale region

- 12 - Copyright © LG Electronics Inc. All rights reserved.
Only training and service purposes.
DisplayPort version
1.4
(OSD is activated at DisplayPort /
Thunderbolt input)
(Default value : Enable)
HDMI ULTRA HD Deep Color ON
Local Dimming Auto
Buzzer On
OSD Lock Off
OSD Size Small
Information OK
Reset to initial Settings No
ÆMake sure to do FACTORY RESET at the final process.
6. Signal composition for adjustment
6.1 I2C (100K BPS)
6.2 COMMUNICATION START
START 6E A STOP 50Ms
#Until ACK BIT goes LOW, Repeat it.
6.3 Command form.
Command form use DDC2AB standard communication protocol.
START 6E A 50 A LEN A 03 A CMD A 00 A VAL A CS A STOP
a. LEN : DATA BYTE number to send.
b. CMD : Command language that monitor executes.
c.VAL: FOSDATA
d. CS : Dada’s CHECHSUM that transmit
e.DELAY:50MS
f. A : Acknowledge

- 13 - Copyright © LG Electronics Inc. All rights reserved.
Only training and service purposes.
6.4 Screen adjust command (LENGTH = 84)
No. Adjustment contents CMD(hex
)
ADR VAL(hex) Explanation
1 EEPROM ALL INITIAL E4 00 00 adjustment Initialization
2 EEPROM READ E7 Slave
add
At EEPROM Read
3 EEPROM WRITE E8 Slave
add
Data Write data at EEPROM
4 R GAIN 16 00 00-64
Tune Gain
5 G GAIN 18 00 00-64
6 B GAIN 1A 00 00-64
7 BRIGHT(Backlight) 10 00 00-64 Tune Analog Bright
8 FACTORY RESET F0 00 00 Factory reset
9 AUTO_COLOR_ADJUST F1 00 0 AUTO COLOR Tuning
0:Auto color
10 COLOR_MODE_CHANG
E F2 00
01 WARM(6500K)
02 COOL(9300K)
11 Elapsed time Clear E9 00 00 Aging off &Clear
elapsed time
12 Aging On/Off F3 00 FF/00 FF:ON / 00:OFF
13 Input Select F4 00
0xD0
0x90
0XD2
DisplayPort
HDMI1
TBT
14 SYSTEM RESET F5 00 00 Restart System
15 Select Language 68 00 0x00 ~
0x0F
00:English,
01: German
02: French
03: Spanish

- 14 - Copyright © LG Electronics Inc. All rights reserved.
Only training and service purposes.
04: Italian
05: Swedish,
06:Finnish
07: Portuguese
08: Brazil
09: Polish
0A: Russian
0B: Greek
0C: Ukrainian
0D: Chinese
0E:Japanese
0F: Korean
10 : Hindi
11 : Traditional Chinese
16 EDID SN UPDATE 0x77 0 0x01~0x02 0x01 : HDMI1
0x02 : HDMI2
17 APD command 0xF7 00 0x00~0x01 0x00:OFF
0x01:ON
18 Module name LM315WR2-SSA1
19 Peak Luminance B2 00 00 Off
01 Peak
6.5. EEPROM Data Write
6.5.1 Signal 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
Delay : 20ms
6.5.2. Command Set
No.
Adjustment contents CMD(hex
)
LEN Explanation
1 EEPROM WRITE E8 94 16-Byte Write
2 (84+n) n-byte Write
STOP
AAAAA 506E 03 CMD ADH84+n
START ADL A
CS
A
A
Data
_
1 A. . . Data
_
nADelay 20m

- 15 - Copyright © LG Electronics Inc. All rights reserved.
Only training and service purposes.
*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.
6.6 E2PROM Data Read
6.6.1 Signal Talbe
----------------------------------------------------------------------
128 Bytes
6.6.2 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
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
6.6.3 Use
Read E2PROM’s specific area as unit of 128(80h)-byte. ( 84h )
6.6.4 EDID Write
EEPROM access by using DDC2B protocol
1-Byte write
STOP
AAD16F
STOP
START
A
A
A
Dn
AAA506E 03 CMD ADH84
START A AADL ACS
Delay 150ms
STOP
ALA0 DSTART AA

- 16 - Copyright © LG Electronics Inc. All rights reserved.
Only training and service purposes.
L : 0x00~0x7F
D : data
8-byte write
L : 0x00,0x10,….0x70
6.6.5 EDID Read
DDC2B Command.(A0/A1)
STOP
AAAALA0 …. Data8 Data1START A
STOP
A00
A0
START A ACSA Data1A1START . . . Data128
- 128 Byte transfer of EDID Buffer of MICOM

- 17 - Copyright © LG Electronics Inc. All rights reserved.
Only training and service purposes.
Fig.1 Place the monitor’s screen face down
Fig.2 Disassemble the Stand body with pulling down the button.
DISASSEMBLY

- 18 - Copyright © LG Electronics Inc. All rights reserved.
Only training and service purposes.
Fig 3 Remove the Screw(4EA) and disassemble the back cover
Fig 4 Disassemble the back cover (Latch Type) .
Start Point
Start Point

- 19 - Copyright © LG Electronics Inc. All rights reserved.
Only training and service purposes.
Fig 5 Remove thermal pad(1EA), EMI Tape(2EA)
Fig.6 Remove the side cover
Fig.7 Disassembly the LED Cable , Control Assemble (Latch Type) ,
FFC cable and Speaker

- 20 - Copyright © LG Electronics Inc. All rights reserved.
Only training and service purposes.
Fig. 8 Disassembly the screws between Middle(19)/Rear Frame(4) and Module