LG 49SM5C-BF Service Manual page 31

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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
(32/43) N.C
(49/55/65) PWM #2
D 13.2 V
D 13.2 V
A 13.2 V
GND
PWM #1
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Only training and service purposes.
A4

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