LG 32LH550B - Gnd; Gnd Gnd; P4001; ③

1, 2. Check IR cable condition between IR & Main board
3. Check the 3.4V_ST Voltage
Standard Repair Process Detail Technical Manual
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< Sub Ass’y>
< Main Ass’y>
LCD TV
Error Symptom D. Function Error, No Response in remote controller, Key error Established date 2016.01.29
A16
Content Remote controller operation checking method Revised date
P4001
1 KEY1/KEY2
2 +3.4V_ST
3 GND
4 LED_R
5 IR
6 GND
7 NC
`8 NC
IR
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