Contents of LCD TV Standard Repair Process Detail Technical Manual

No.

Error symptom

Content

Page

Remarks

 

 

 

 

 

1

 

Check LCD back light with naked eye

A1

 

 

 

 

 

 

2

A. Video error_ No video/Normal

LED driver B+ 24V measuring method

A2

 

 

 

 

 

3

audio

Check White Balance value

A3

 

 

 

 

 

 

 

 

4

 

Power Board voltage measuring method

A4

 

 

 

 

 

 

6

A. Video error_ No video/Video

TUNER input signal strength checking method

A5

 

 

 

 

 

7

lag/stop

LCD-TV Version checking method

A6

 

 

 

 

 

 

 

 

9

 

LCD TV connection diagram

A7

 

 

 

 

 

 

10

A. Video error_Color error

Check Link Cable (LVDS) reconnection

A8

 

condition

A9

 

 

 

 

 

 

 

 

 

11

 

Adjustment Test pattern - ADJ Key

A10

 

 

 

 

 

 

12

 

LCD TV connection diagram

A8

 

 

 

 

 

 

13

A. Video error_Vertical/Horizontal bar,

Check Link Cable (LVDS) reconnection

A8

 

residual image, light spot

condition

A9

 

 

 

 

 

 

 

 

14

 

Adjustment Test pattern - ADJ Key

A10

 

 

 

 

 

 

15

 

Exchange T-Con Board (1)

A-1/5

 

 

 

 

 

 

16

 

Exchange T-Con Board (2)

A-2/5

 

 

<Appendix>

 

 

 

17

Exchange LED driver Board (PSU)

A-3/5

55” : driver board

Defected Type caused by T-Con/

Other : PSU

 

Inverter/ Module

 

 

 

 

 

 

18

 

Exchange Module itself (1)

A-4/5

 

 

 

 

 

 

19

 

Exchange Module itself (2)

A-5/5

 

 

 

 

 

 

Continue to the next page

Copyright © 2012 LG Electronics. Inc. All rights reserved.

LGE Internal Use Only

Only for training and service purposes

 

Page 39
Image 39
LG Electronics 32LS3590 Contents of LCD TV Standard Repair Process Detail Technical Manual, Continue to the next page