LG 49SM5KD Service Manual page 31

Standard Repair Process Detail Technical Manual
symptom
Monitor Signage
Content
Error
A. Video error_No video/ Audio
Power Board voltage measuring method
1
3
5
7
9
11
Established
date
Revised
date
Check the 13.2V for Audio
12 Pin (Power Board ↔ Main Board)
SMAW200-H12S5K(BK)
PWR On 2
GND 4
D 13.2 V 6
A 13.2 V 8
GND 10
DRV On
12
(Inverter –On)
A4
A4
PWM #2
D 13.2 V
D 13.2 V
A 13.2 V
GND
PWM #1
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