LG 43UQ9000PSD Service Manual page 34

Standard Repair Process
Error
symptom
2. MR22(Magic Remote control) operating error
☞A24 ☞A4
Check the
RF Receiver
INSTART menu ver is "00.00"?
Turn AC off/on the
set
☞A4
RF Receiver ver
is "00.00"?
Change the RF Receiver assy
Or RF Receiver Cable
D. Function error
MR22 operating checking
N Check MR22
itself Operation
Y
N
Y
Normal Y
Press the
operating?
wheel
N
Check & Replace
Battery of MR22
Y
Normal
operating?
N
Replace
MR22
* If you conduct the loop at 3times, change the MR22.
12
Established
date
Revised date
Turn AC off/on the
N
Is show ok
set and press the
message?
wheel after 10sec
Y
Close
Is show ok N
Home+Back key
message?
Y
Close
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Only for training and service purposes.
Press the
about 5sec