LG 42LF650T Service Manual

Normal/Motion Remote Controller operating error
Y
N
1. Normal Remote control(R/C) operating error
Check R/C itself
Operation
Normal
operating?
Normal
operating?
Y
Replace R/C
If R/C operate,
Explain the customer
cause is interference
from light in room.
Check R/C Operating
When turn off light
in room
Check & Replace
Baterry of R/C
Check & Repair
Cable connection
Connector solder
Normal
operating?
Check 13V
On Main B/D
☞A27
Normal
Voltage?
Close
N
N
Check 13V on Power B/D
Replace Power B/D or
Replace Main B/D
(Power B/D don’t have problem)
☞A5
Check IR
Output signal
Normal
Signal?
N
Y
Repair/Replace
IR B/D
N
☞A27
Replace
Main B/D
Y
☞A27
Standard Repair Process
Established
date
Revised date
10/13
Error
symptom
Y
Y
N
2. Motion Remote control operating error
Check Motion R/C
itself Operation
Normal
operating?
Y
Check R/C Operating
When turn off light
in room
Check & Replace
Baterry of R/C
Check & Repair
Cable connection
Connector solder
Normal
operating?
Check
3.5V_WIFI
On Main B/D
☞A29
Normal
Voltage?
Close
N
Check 13V on Power B/D
Replace Power B/D or
Replace Main B/D
(Power B/D don’t have problem)
☞A5
Check B/T
Version
Version
Value OK?
N
Y
Repair/Replace
Wi-Fi B/T combo B/D
N
☞A29
Replace
Main B/D
Y
☞A29
Normal
operating?
Replace R/C
N
Y
If R/C operate,
Explain the customer
cause is interference
from light in room.
D. Function error
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LG 42LF650T Specifications

General

Brand	LG
Model	42LF650T
Category	LED TV
Language	English