LG LFXS28566 Series Technical Manual page 155
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Also See for LFXS28566 Series:
- Service manual (122 pages) ,
- Owner's manual (213 pages) ,
- Service bulletin booklet (78 pages)
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[SVC Notice] [No display] No display by EMI tape attachment error on module source PCB
Bulletin Type: SVC Notice
Applicable for Serial Number: All Serial Numbers
Applicable for models: (Refer to page 3)
70UM69x, 70UM73x
Symptoms No display (Screen on TV)
EMI tape on module source-PCB touches
Cause
Test Pattern. (EMI tape attached incorrectly)
1. Repair Instruction:
① Check that the TV powers ON and has Backlights, (Backlight On).
② Check for the symptom: - No Display on the TV Screen.
③ After disassembling the SET's Stand / Back Cover / Bottom Cover ,
then Disassembly LCM Lower's SPCB Cover shield L/R.
④ Check the attaching position of the SPCB EMI Tape.
- If Panel's Test points are covered by the SPCB EMI Tape, it will cause a No display symptom.
Detach (Remove) the SPCB EMI Tape , Please reattach, but avoid Panel's Test Patterns.
⑤ Checking improvement:
- Follow the specific Repair Tape Attaching Guide.
- Suggestion: Please check for proper Picture "Before" Reassembling the complete TV.
Service Bulletin
Parts
Others
Applicable only with symptoms
Picture
Page 1
Product: LED TV
Bulletin #: GLZ201900181-01
Release Date: 07/29/ 2019
with every repair
Module Source PCB
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