LG 55QNED81SRA Service Manual page 29

Standard Repair Process
Error
symptom
* Please refer to the all cases which can be displayed on power off mode.
Power off history Contents
00~09, 0A~0Z Normal operation
10~19, 1A~1Z Power environment Items required for power environment inspection (AC_DET etc)
External equipment/
20~29, 2A~2Z
Network
30~39, 3A~3Z User Scene
40~49, 4A~4Z App/CP
50~59, 5A~5Z SW Update
60~69, 6A~6Z System Error
70~79, 7A~7Z AR/AOD
80~89, 8A~8Z WOV
90~99, 9A~9Z Specific country
B0~B9, BA~BZ OLED(BDP)
C0~C9, CA~CZ OLED
D0~D9, DA~DZ OLED(etc)
L0~L9, LA~LZ Life style
R0~R9, RA~RZ A+
M0~M9, MA~MZ Wireless model
Process/SVC
F0~F9, FA~FZ
Records
XX Initial value
B. Power error
Off when on, off while viewing, power auto on/off
Explanation
Occurs during normal operation (Remote_Key, Local_Key etc)
Power operation by external equipment/network
(HDMI CEC, WiFi/Lan/BT etc)
Records according to customer use (Timer setting, reservation
setting, no operation/no signal condition, initialization etc)
App button operation on the remote control (Netflix key, Disney key
etc)
S/Ware Update record
System malfunction (need to check Main PCBA /SW)
Records left during AR/AOD operation
Operation via Voice
Specific country only (satellite, disaster etc)
OLED only (Panel defect)
OLED only (Compensatory action)
OLED 모델 only (Fan, FPC cable error etc)
Standby me model etc
Rollable model only
Wireless model only
Process/SVC Records (in-stop, Power Only etc)
Initial value not recorded yet
Established
date
Revised date
Action Details
Normal Case
Power Inspection and replacement
Normal Case - Settop CEC Check the settings
- TV HDMI Setting > Simple Link Menu check
- Check 'Turn on TV with mobile device' Menu on the TV
Normal Case
- Check your TV's 'Reservation Time Settings'
- Input signal check (Auto power off after 15 minutes in
case of no signal)
Normal Case
Normal Case
SW latest version check and update Main check and
replacement
Normal Case
Normal Case - Check your TV's 'Voice Recognition
Settings'
* Turn off the function or change the sensitivity setting, etc
N/A
OLED Module check and replacement (BDP)
OLED Module check and replacement (Except BDP)
Checking T-con and main connection cable
Checking Fan / Heatsink Connection Status
N/A
N/A
N/A
Normal Case - N/A
Normal Case
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