LG 55G2 Service Manual page 99

Standard Repair Process
LCD TV
Identify
nose type
Copyright ⓒ 2012 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 of
noise
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
※ 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)
47
Established
2012.01.16
date
Revised date 2012.03.21
LGE Internal Use Only