Manual de serviço tv lg 47ln540v, 47ln542v, 47ln5400, 47ln5404, 47ln5406 chassis ld31b e ld36b

Page 59

Standard Repair Process Detail Technical Manual LCD TV

Error symptom

A. Video error_No video/ Audio

Content

Power Board voltage measuring method

Established date Revised date

2013. 01 .09 A4

Edge LED Check the DC 24V, 12V, 3.5V. 18 Pin (Power Board ↔ Main Board) - Common

Copyright © 2013 LG Electronics. Inc. All rights reserved. Only for training and service purposes

1

Power on

2

DRV ON

3

3.5V

4

PDIM#1

5

3.5V

6

PDIM#2

7

GND

8

GND

9

24V

10

24V

11

GND

12

GND

13

12V

14

12V

15

12V

16

N.C

17

GND

18

GND

LGE Internal Use Only


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