LG 43UF640 Series Service Manual page 37

Standard Repair Process
Error
symptom
Identify
nose
type
Mechanical
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Only for training and service purposes
Circuit noise, mechanical noise
Check
Circuit
location of
noise
noise
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
OR
15
Established
date
Revised date
When the nose is severe, replace the module
(For models with fix information, upgrade the
S/W or provide the description)
※ If there is a "Tak T ak" 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)
15/16
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