LG 55EM970V-ZA (CHASSIS:ED23E) Service Manual ▷ View online
Checking order
1, 2. Check Logo cable condition between Logo & FRC board.
3. Check the st-by 3.5V on the terminal 1.
4. When checking the Logo 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
Logo light operation checking method
D. Function error
A27
Established
date
Revised
date
Error
symptom
Content
OLED TV
A27
P4101
1
St 3.5V
2
GND
3
LOGO White
4
LOGO Red
①
②
③
④
<55EM970V>
2013. 01 .26
Checking order
1, 2. Check Motion cable condition between Motion assy & FRC board.
3. Check the 3.3V on the terminal 1.
Standard Repair Process Detail Technical Manual
Motion Remote operation checking method
Established
date
Revised
date
Error
symptom
Content
OLED TV
A28
P5402
1
3.3V
2
GND
3
RX
4
TX
5
RESET
6
DC
7
DD
8
GND
①
②
③
<55EM970V>
A28
D. Function error
2013. 01 .26
Checking order
1, 2. Check Wifi cable condition between Wifi assy & Main board.
3. Check the 5V on the terminal 1.
Standard Repair Process Detail Technical Manual
Wifi operation checking method
A29
Established
date
Revised
date
Error
symptom
Content
OLED TV
A29
P4301
1
VDD
2
DM
3
DP
4
GND
②
③
2013. 01 .26
①
<55EM970 V>
D. Function error
Checking order
1, 2. Check Wifi cable condition between Wifi assy & Main board.
3. Check the 5V on the terminal 1.
Standard Repair Process Detail Technical Manual
Wifi operation checking method
A29
Established
date
Revised
date
Error
symptom
Content
OLED TV
A29
P4301
1
VDD
2
DM
3
DP
4
GND
②
③
2013. 01 .26
①
<55EM970 V>
D. Function error