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Check 
location of 
noise

Identify 
nose 
type

Replace PSU(with LED driver)

Replace LED driver 

Check location 
of noise

OR

※ When the nose is severe, replace the module
(For models with fix information, upgrade the 
S/W or provide the description)

OR

※ If there is a “Tak Tak” noise from the 
cabinet, refer to the KMS fix information and 
then proceed as shown in the solution manual
(For models without any fix information, 
provide the description)

OR

※ Mechanical noise is a natural 
phenomenon, and apply the 1st level 
description. When the customer does not 
agree, apply the process by stage. 
※ Describe the basis of the description 
in “Part related to nose” in the Owner’s 
Manual.

14

Replace module

Zoom part with 
exterior damage

Replace cabinet

Replace remote controller

Replace stand

15

L9
LG1152D

AUD

BB_TP_DATA

DAC_DATA

AAD_DATA

HSR_P/M

CVBS

DIF(P/N)

SIF

Tuner

PC_AUDIO

PC_Audio L/R

AV 1_Audio L/R

Comp 1_Audio L/R

PC-

RGB

A/V1

COMP1

A/V1_CVBS

Comp1 Y,Pb,Pr

PC_R,G,B,H,V

HDMI
Switch

HDMI1~4

L9
LG1152A

USB1

USB2

USB3

USB
HUB

PHY

RMII

LAN

Motion-R

M-Remote_R/TX

Audio
AMP

OPTIC

SPK

H/P

H/P Audio L/R

SPDIF

I2S

16

DDR

16

DDR

256MB×4 
(1600)

128MB×1 
(1600)

8

eMMC

4GB×1 

Built-in WiFi

3D 
Depth
LG1132

FRC-III
LG1122

mini_LVDS

mini_LVDS

T-con
LG5812

HS_LVDS

2Link

HS_LVDS / 2Link

V by One / 8 Line

CHB_DATA

ATSC Half NIM

DIF

SIF

Parallel TS

System
Demux

Audio DSP
Multi-STD
Audio Decoder

BTSC AFE
10b@18.432MHz
w/ PLL

1ch L/R
Audio-ADC
24b@48KHz

GBB AFE
1ch@30MHz
w/ PLL

Global Baseband
V/Q, DVB-T/C

CVBS(6ch)

Component(2ch)

3ch Video 
AFE
10b@165MHz
w/ LLPLL

PC-RGB

HDMI-Rx 1.4
(1-port PHY)
3D, ARC, 4kx2k

HDMI(1ch)

Capture
Block
(3CH)

AAD
(THAT)

Audio Codec1
(Digital Part)

Mu

x

Analog Chip

Digital Chip

Audio L/R (5-ch)

SW

I2S(stero)

Sound
DSP

I2S

SPDIF

Video Decoder
(

Dual HD

)

CVBS AFE(2-ch)
12b@54MHz

12 : CVBS

Mu

x

12

Diplay
Engine

MC NR,
Vertical MC IPC

Scaler, PE
OSD, VCR

LVDS

H.264 Encoder
SD upto 480p

12

PHY
(3-port)

USB2.0
Host (x3)

DDR3-PHY

DDR3(x16) * 3

Ethernet
MAC

eMMC
Controller

CPU

Dual C-A9 (1GHz)

Graphic

Engine

2D-VG / 3D Open-ES2.0

10(data)+1(en)+5(gc)

4(val, err, clk, sop)
+8 (data)

I2C

6(gbb, l9da)

I2C

(Headphone)

Digital
Audio
Output

LVDS

LVDS

LVDS

Video

OSD

LVDS

Audio PLL
w/ DCO

I2S (mono)

3(lrck, lrch, sck)

I2C

SW

SW

3D or UD
Data bridge

1 (ARC data)

ARC 

(1ch)

I2S or SPDIF

8

Audio Clocks

9

1ch mono
Audio-ADC
24b@48KHz

Audio Codec0
(Digital Part)

Mu

x

LVDS

interrupt

3(hdmi, 3ch, gbb)

3(lrck, lrch, sck)

Audio

HDMI
(1-Link)

I2S

Tuner_CVBS