LG 55EM970V-ZA (CHASSIS:ED23E) Service Manual ▷ View online
D. Function error
Wifi operating checking
3.Wifi operating error
Check the
INSTART menu
Wi-Fi Mac value
is “NG”?
Y
Check & Repair
Wifi cable
connection
N
Check the Wifi wafer
(P4301)_1pin
Standard Repair Process
Established
date
Revised date
12/15
Error
symptom
12
Change the Wifi
assy
Normal
Voltage?
Close
Y
Y
N
Replace
Main B/D
Wi-Fi Mac value
is “NG”?
N
Close
☞A29
☞A7
☞A7
☞A29
OLED TV
2013. 01 .26
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
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
13/15
Error
symptom
Standard Repair Process
13
OLED TV
2013. 01 .26
Check
location of
noise
Identify
nose
type
Circuit
noise
Replace PSU
Replace Optic Cable
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
14/15
Error
symptom
Standard Repair Process
14
OLED TV
2013. 01 .26
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
Established
date
Revised date
15/15
Error
symptom
Standard Repair Process
15
OLED TV
2013. 01 .26
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