Read LG 55EA9800-CA (CHASSIS:EC34D) Service Manual online
Checking order
1, 2. Check Wifi cable condition between Wifi assy & Main board.
3. Check the 3.3V on the terminal 2.
Standard Repair Process Detail Technical Manual
Wifi operation checking method
A24
Established
date
Revised
date
Error
symptom
Content
LCD TV
A24
D. Function error
2013.01.31
P4003
1
+3.5V_WOL
2
+3.3V
3
USB_DM
4
RTS
5
USB_DP
6
RX
7
GND
8
TX
9
WOL
10
RESET
11
GND
12
CTS
13
NC
14
+3.5V_ST(OLED)
15
IR(OLED)
16
GND
17
EYE_SCL
18
EYE_SDA
①
②
③
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