LG 86SJ9570 Service Manual page 34

Standard Repair Process
D. Function error Established
Error
date
symptom
MR13 operating checking
Revised date
12/16
2. MR15(Magic Remocon) operating error
☞A4
N
Check the
Y
Check MR15
RF Receiver ver Normal
Turn off/on the
N
Press the Is show ok
INSTART menu is "00.00"?
operating?
itself Operation
set and press
message?
wheel
the wheel
N
Y
Y
☞A23
Check & Replace Close
Check & Repair
Battery of MR15
RF assy
connection
Y
Normal
☞A4
Close
operating?
Is show ok N
Press the back
message?
N key about 5sec
RF Receiver ver
N
Close
is "00.00"?
Y
Replace
MR13
Close
Y
Down load the Firmware
* If you conduct the loop at 3times, change the M4.
* INSTART MENU14.RF
Remocon Test3. Firmware
download
12
Copyright © 2017 LG Electronics Inc. All rights reserved.
Only for training and service purposes.