LG 32LN5100 (CHASSIS:LL35B) Service Manual ▷ View online
D. Function error
Remote control & Local switch checking
Standard Repair Process
Established
date
Revised date
11/14
LCD TV
Error
symptom
2013. 02. 02
Y
1. Remote control(R/C) operating error
Check R/C itself
Normal
Check & Repair
Normal
Check B+ 3 5V
☞
A17
Normal
N
Check IR
Normal
Y
☞
A17
Replace
Main B/D
Y
☞
A17
Y
N
Check R/C itself
Operation
Normal
operating?
Y
Check R/C Operating
Check & Replace
Cable connection
Connector solder
Connector solder
Normal
operating?
Check B+ 3.5V
On Main B/D
Normal
Voltage?
Close
Check 3.5v on Power B/D
☞
A4
Check IR
Output signal
Normal
Signal?
N
Repair/Replace
IR B/D
N
Normal
operating?
Close
If R/C operate,
Explain the customer
cause is interference
When turn off light
in room
Baterry of R/C
Replace Power B/D or
Replace Main B/D
(Power B/D don’t have problem)
IR B/D
Replace R/C
cause is interference
from light in room.
N
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D. Function error
External device recognition error
Established
date
Revised date
12/14
LCD TV
Error
symptom
Standard Repair Process
2013. 02. 02
Check technical
information
- Fix information
information
- Fix information
S/W Version
N
Technical
information?
Check
input
signal
input
signal
Signal
input?
Y
External Input and
Component
Recognition error
Replace Main B/D
- S/W Version
Y
g
N
Check and fix
external device/cable
external device/cable
RGB,HDMI/
DVI, Optical
DVI, Optical
Recognition error
Replace Main B/D
Fix in
accordance
ith t h i l
with technical
information
12 / 37
E. Noise
Circuit noise, mechanical noise
Established
date
Revised date
13/14
LCD TV
Error
symptom
Standard Repair Process
2013. 02. 02
Check location
of noise
of noise
Identify
nose type
nose type
Circuit
noise
Replace PSU(with LED driver)
Replace LED driver
OR
Mechanical
noise
Check location of
noise
noise
※
When the nose is severe replace the module
※
When the nose is severe, replace the module
(For models with fix information, upgrade the S/W or
provide the description)
provide the description)
OR
※
If there is a “Tak Tak” noise from the cabinet,
refer to the KMS fix information and then proceed
※
Mechanical noise is a natural
phenomenon, and apply the 1st level
description. When the customer does not
agree apply the process by stage
description. When the customer does not
agree apply the process by stage
as shown in the solution manual
(For models without any fix information, provide
the description)
(For models without any fix information, provide
the description)
OR
agree, apply the process by stage.
※
※
Describe the basis of the description in
“Part related to nose” in the Owner’s Manual.
13 / 37
F. Exterior defect
Exterior defect
Established
date
Revised date
14/14
LCD TV
Error
symptom
Standard Repair Process
2013. 02. 02
Replace module
Zoom part with
exterior damage
exterior damage
Module
damage
Cabinet
damage
Replace cabinet
Replace remote controller
Remote
controller
damage
Stand
dent
Replace stand
14 / 37
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