Noise - LG 55LW5700 Service Manual

Standard Repair Process
LCD TV
Identify
nose
type
Copyright ⓒ 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Error
symptom
Circuit noise, mechanical noise
Check
Circuit
location of

noise

noise
Mechanical
Check location
noise
of noise
※ 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
Replace PSU(with LED driver)
OR
Replace LED driver
※ 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
OR
(For models without any fix information,
provide the description)
12
Established
2010. 12 .14
date
Revised date
ⓒ LG Electronics. Inc.2009
12/13
LGE Internal Use Only