LG OLED77G3 Series - Page 37

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D. Function error
Standard Repair Process
Error
symptom
Remote control & Local switch checking
Established
date
Revised date
Y
N
1. Remote control(R/C) operating error
Check R/C itself
Operation
Normal
operating?
Normal
operating?
Y
Close
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 B+3.5V
On Main B/D
☞A13
Normal
Voltage?
N
N
Replace Power B/D or
Replace Main B/D
(Power B/D don’t have problem)
☞A9
Check IR
Output signal
Normal
Signal?
N
Y
Repair/Replace
IR B/D
N
☞A13
Replace
Main B/D
Y
☞A13
Y
Close
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