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ⓒ
2020 LG Electronics. Inc. All right reserved. Only for training and service purposes
Check location of
noise
Identify
nose type
Circuit
noise
Replace PSU
Mechanical
noise
Check location of noise
※
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
Error
symptom
Standard Repair Process
14
