Check location
of noise
Identify
nose type
Replace PSU(with LED driver)
Replace LED driver
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
13/14
Standard Repair Process
Circuit
noise
Mechanical
noise
Error symptom
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Summary of Contents for 49LF550T
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