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Standard Repair Process Detail Technical Manual
LCD TV
<ALL MODELS>
1
Checking order
1, 2. Check IR cable condition between IR & Main board.
3.
Check the st-by 3.3V on the terminal 6.
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.
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Only for training and service purposes
Error
D. Function error_ No response in remote controller,
symptom
key error
Content
Remote controller operation checking method
Established
date
Revised
date
3
4
2
A27
2010. 2 .19
A27
P8200
1
SCL
2
SDA
3
GND
4
KEY1
5
KEY2
6
St 3.3V
7
GND
8
LED_B
9
IR
10
GND
11
Normal 3.3V
12
LED_R
LGE Internal Use Only
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