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D. General Function Problem

Remote control & Local switch checking

Y

N

1. Remote control(R/C) operating error

Check R/C 
itself Operation

Normal
operating?

Normal

operating?

Y

Close

Replace R/C 

If R/C operate,
Explain the customer 
cause is interference
from light in room.

Check R/C Operating
When turn off light

in room

Check & Replace
Baterry of R/C 

Check & Repair
Cable connection
Connector solder

Normal

operating?

Check B+ 
3.5V
On Main B/D

☞A27

Normal

Voltage?

Close

N

N

Check 3.5v on Power B/D
Replace Power B/D or
Replace Main B/D
(Power B/D don’t have problem)

☞A4

Check IR
Output signal

Normal

Signal?

N

Y

Repair/Replace
IR B/D

N

☞A27

Replace
Main B/D

Y

☞A27

Standard Repair Process

Established
date 

Revised date 

11/14

LCD  TV

Error
symptom

11

2010.12.14

Check technical 
information
- Fix information
- S/W Version

N

Y

Technical 

information?

Check 
input 
signal

Signal
input?

Y

N

External Input

And Component

Recognition

error

Check and fix 
external device/cable

RGB,HDMI

/DVI, Optical

Recognition

error

Replace Main B/D

Replace Main B/D

Fix in 

accordance with 

technical 

information

D. Function error

External device recognition error 

Established
date 

Revised date 

12/14

LCD  TV

Error
symptom

Standard Repair Process

12

2010.12.14

Check 
location of 
noise

Identify 
nose 
type

Circuit 

noise

Replace PSU (with LED driver)

Replace LED driver 

Mechanical 

noise

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)

※ 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.

E. Noise 

Circuit noise, mechanical noise

Established
date 

Revised date 

13/14

LCD  TV

Error
symptom

Standard Repair Process

13

2010.12.14

Replace module

Zoom part with 
exterior 
damage

Module

damage

Cabinet

damage

Replace cabinet

Replace remote controller

Remote 

controller

damage

Stand

dent

Replace stand

F. Exterior defect

Exterior defect 

Adjust VCOM

Established
date 

Revised date 

14/14

LCD  TV

Error
symptom

Standard Repair Process

☞A28

14

2010.12.14