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LG OLED55B1PTA Service Manual page 33

Chassis eb12b

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Standard Repair Process
Error
symptom
2. MR21 (Magic Remote control) operating error
☞A4
Check the
RF Receiver ver
is "00.00"?
INSTART menu
☞A14
Check & Repair
RF assy
connection
☞A4
RF Receiver ver
is "00.00"?
Down load the Firmware
* INSTART MENU
 12.RF Remote control Test
 Receiver Firmware download
D. Function error
MR21 operating checking
N
Check MR21
itself Operation
Y
N
Close
Y
Normal
Y
Press the
operating?
wheel
N
Check & Replace
Battery of MR21
Y
Normal
Close
operating?
N
Replace
MR21
12
Established
date
Revised date
Turn off/on the
N
Is show ok
set and press
message?
the wheel
Y
Close
Is show ok
N
message?
Y
Close
•If you conduct the loop at 3times,
change the MR21.
Copyright © 2021 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
12/16
Press the back
key about 5sec

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