LG 49LJ5100M - Page 46

1
GND
2
NC
3
KEY2
4
+3.3V_ST
5
GND
6
LED_RED
7
IR
8
GND
9
I2C_SCL_SENSOR
10
I2C_SCL_SENSOR
1, 2. Check IR cable condition between IR & Main board. (cut, split, stabbed)
3. Check the ST-BY 3.3V on the terminal pin 2
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
① ②
③
④
P302
< Sub Ass’y> < Main Ass’y>
Error Symptom
D. Function Error, No Response in remote control, Key error
Established date
A17
Content
Remote control operation checking method
Revised date
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