LG LFXS28566 Series Technical Manual page 165

[Quality][Display] TV 50/65UH55xx No power caused by LED defect
Bulletin Type: SVC Notice
Applicable for Serial Number: All Serial Number
Applicable for Models: (Skyworth ODM Model)
50UH5500, 50UH5530
65UH5500
No Power (Power protection)
(1) TV is turned off immediately when customer turn on TV.
Symptoms:
→ At the time, LGE logo will be displayed shortly.
(2) IR LED(Red light) is flickering.
Cause: Power protection caused by BLU LED defect
1. Repair Instruction
① Check the Symptom: No display caused by Back Light problem.
※ In case of Panel Defect (V-Line, H-Line, Crack, etc), please repair LCM Module.
② Check the BLU P/no and Order:
MODEL Order P/N
65UH55xx COV35586801
50UH55xx COV35607301
③ Replace BLU with new one
- Please use Sheets (Diffuser Plate, Prism sheet, etc..) in the original SET.
Service Bulletin
Parts Others
 
Parts Description
BLU Assy
BLU Assy
Applicable only with symptoms
Picture
[With Protection Plate]
Page 1
Product: LED TV
Bulletin #: GLZ201900166-01
Release Date: 06-03-2019
with every repair

Remove
Protection
Plate
[BLU Ass'y]