DOWNLOAD LG 47LM6690 (CHASSIS:LT22E) Service Manual ↓ Size: 9.84 MB | Pages: 127 in PDF or view online for FREE

Model
47LM6690 (CHASSIS:LT22E)
Pages
127
Size
9.84 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
47lm6690-chassis-lt22e.pdf
Date

LG 47LM6690 (CHASSIS:LT22E) Service Manual ▷ View online

65 / 79
Checking method: 
1. Check the signal strength or check whether the screen is normal when the external device is connected. 
2. After measuring each voltage from power supply, finally replace the MAIN BOARD. 
TUNER checking part
A. Video error_Video error, video lag/stop
<ALL MODELS>
A9
Established 
date 
Revised 
date 
Error 
symptom
Content
LCD  TV
2010. 12 .14
Standard Repair Process Detail Technical Manual
66 / 79
Adjustment Test pattern - ADJ Key
A. Video error_Color error 
You can view 6 types of patterns using the ADJ Key
Checking item : 1. Defective pixel    2. Residual image    3. MODULE error (ADD-BAR,SCAN BAR..)
4.Video error (Classification of MODULE or Main-B/D!)
A12
Established 
date 
Revised 
date 
Error 
symptom
Content
LCD  TV
2010. 12 .14
Standard Repair Process Detail Technical Manual
67 / 79
Solder defect, CNT Broken
T-Con Defect, CNT Broken
T-Con Defect, CNT Broken
T-Con Defect, CNT Broken
Solder defect, CNT Broken
Solder defect, CNT Broken
Solder defect, CNT Broken
Solder defect, CNT Broken
Abnormal Power Section
Solder defect, Short/Crack
Abnormal Power Section
Solder defect, Short/Crack
Appendix : Exchange T-Con Board (1)
68 / 79
GRADATION
Abnormal Power Section
Solder defect, Short/Crack
Abnormal Power Section
Solder defect, Short/Crack
Fuse Open, Abnormal power section
Noise
GRADATION
Abnormal Display
Appendix : Exchange T-Con Board (2)
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