LG 32SE3B-BE Service Manual page 71

Standard Repair Process Detail Technical Manual
symptom
Signage Monitor
Content
[SE3B Models]
Checking order
1. Check IR cable condition between IR & Main board
2. Check the st-by 3.5V on the terminal M1.
3. 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,
key error
Remote controller operation checking method
JK602
Established
date
Revised
date
JK602
M5 GND
M4 +3.5V_ST
M3 NC
M1 IR
A27
2014. 06 .10
A27
LGE Internal Use Only