LG 42LA8600 / 42LA860Y (CHASSIS:LB34D) Service Manual ▷ View online
D. Function error
Remote control & Local switch checking
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
Connector solder
Normal
operating?
Check B+ 3.5V
On Main B/D
☞A22
Normal
Voltage?
Close
N
N
Check 3.5v on Power B/D
Replace Power B/D or
Replace Main B/D
(Power B/D don’t have problem)
☞A18
Check IR
Output signal
Normal
Signal?
N
Y
Repair/Replace
IR B/D
N
☞A22
Replace
Main B/D
Y
☞A22
Standard Repair Process
Established
date
Revised date
10/16
LCD TV
Error
symptom
10
Y
2013.03.05
D. Function error
MR13 operating checking
Y
N
2. MR13(Magic Remocon) operating error
Check MR13
itself Operation
Normal
operating?
Normal
operating?
Y
Close
Check & Replace
Battery of MR13
Is show ok
message?
Press the
wheel
Is show ok
message?
Close
N
N
N
Y
Standard Repair Process
Established
date
Revised date
11/16
LCD TV
Error
symptom
Replace
MR13
Turn off/on the set
and press the
wheel
Press the back key
about 5sec
* If you conduct the loop at 3times, change the M4.
Y
Check the
INSTART menu
RF Receiver ver
is “00.00”?
Y
Check & Repair
RF assy
connection
N
Down load the Firmware
* INSTART MENU14.RF
Remocon Test3. Firmware
download
Y
RF Receiver ver
is “00.00”?
N
☞A23
☞A4
☞A4
11
2013.03.05
Close
Close
D. Function error
Wifi operating checking
3.Wifi operating error
Check the
INSTART menu
Wi-Fi Mac value
is “NG”?
Y
Check & Repair
Wifi cable
connection
N
Check the Wifi wafer
1pin
Standard Repair Process
Established
date
Revised date
12/16
LCD TV
Error
symptom
12
Change the Wifi
assy
Normal
Voltage?
Y
Y
N
Replace
Main B/D
Wi-Fi Mac value
is “NG”?
N
☞A24
☞A4
☞A4
☞A24
2013.03.05
Close
Close
D. Function error
Camera operating checking
4.Camera operating error
Check the
INSTART menu
Camera Ver.
is “NG”?
Y
Check & Repair
Camera cable
connection
N
Check the Camera wafer
P4200 2pin
Standard Repair Process
Established
date
Revised date
13/16
LCD TV
Error
symptom
13
Change the
Camera assy
Normal
Voltage?
Y
Y
N
Replace
Main B/D
Camera Ver.
is “NG”?
N
☞A25
☞A4
☞A4
☞A25
2013.03.05
Close
Close
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