Read LG 55EA9800-CA (CHASSIS:EC34D) Service Manual online
P4002
1
KEY2
2
+3.5V_ST
3
GND
4
LOGO Light Wafer
5
IR
6
GND
7
EYE SCL
8
EYE SDA
Checking order
1, 2. Check Touch cable condition between Touch & Main board.
3. Check the st-by 3.5V on the terminal 4,7.
4. When checking the Pre-Amp when the power is in ON condition, it is normal when the
Analog Tester needle moves slowly, and defective when it does not move at all.
Standard Repair Process Detail Technical Manual
Remote controller operation checking method
D. Function error
A22
Established
date
Revised
date
Error
symptom
Content
LCD TV
A22
①
②
③
2013.01.31
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