60LM6450 (CHASSIS:LC22E) - LG TV Service Manual (repair manual). Page 63

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Check location 
of noise
Identify 
nose type
Circuit 
noise
Replace PSU(with LED driver)
Replace LED driver 
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)
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)
OR
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 
12/13
LCD  TV
Error
symptom
Standard Repair Process
2010. 12 .14
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