LG 43SM5KD Service Manual

Normal
audio
Y
N
Move to No
video/No audio
No video
Normal audio
Check Back Light
On with naked eye
On
Y
N
Check Power Board
13.2 V
Normal
voltage
Y
N
Replace T-con Board
or module
And Adjust VCOM
Repair Power Board
or parts
Check Power Board LED B+ Voltage
(LED B+ voltage depends on Power BD Spec)
Normal
voltage
Y
Replace Inverter
or module
N
Repair Power
Board or parts
End
Always check & record S/W Version and White
Balance value before replacing the Main Board
Replace Main Board
Re-enter White Balance value
※Precaution
Established
date
Standard Repair Process
Revised date
1/11
Monitor Signage
Error
symptom
A. Video error
No video/ Normal audio
☞A4 ☞A1
☞A2
☞A5 & A3
First of all, Check whether all of cables between board is inserted properly or not.
(Main B/D↔ Power B/D, Power Cable, FFC LVDS Cable, Key Cable,,,)
1
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Only training and service purposes.

LG 43SM5KD Specifications

General

Brand	LG
Model	43SM5KD
Category	Digital Signage
Language	English