LG 84LM9600 (CHASSIS:LC23J) Service Manual ▷ View online
Replace module
Zoom part with
exterior damage
exterior damage
Module
damage
Cabinet
damage
Replace cabinet
Replace remote controller
Remote
controller
damage
Stand
dent
Replace stand
F. Exterior defect
Exterior defect
Established
date
Revised date
13/13
LCD TV
Error
symptom
Standard Repair Process
13
2012.01.16
Contents of LCD TV Standard Repair Process Detail Technical Manual
No.
Error symptom
Content
Page
Remarks
1
A. Video error_ No video/Normal
audio
audio
Check LCD back light with naked eye
A1
2
LED driver B+ 24V measuring method
A2
3
Check White Balance value
A3
4
Power Board voltage measuring method
A4
6
A. Video error_ No video/Video
lag/stop
lag/stop
TUNER input signal strength checking method
A6
7
LCD-TV Version checking method
A7
9
A. Video error_Color error
LCD TV connection diagram
A8
10
Tuner Checking Part
A9
11
Check Link Cable (LVDS) reconnection condition
A10
A11
A11
12
Adjustment Test pattern - ADJ Key
A12
13
A. Video error_Vertical/Horizontal
bar, residual image, light spot
bar, residual image, light spot
LCD TV connection diagram
A8
14
Check Link Cable (LVDS) reconnection condition
A10
A11
A11
15
Adjustment Test pattern - ADJ Key
A12
16
<Appendix>
Defected Type caused by T-Con/
Inverter/ Module
Defected Type caused by T-Con/
Inverter/ Module
Exchange T-Con Board (1)
A-1/5
17
Exchange T-Con Board (2)
A-2/5
Exchange LED driver Board (PSU)
A-3/5
55” : driver board
Other : PSU
Other : PSU
18
19
Exchange Module itself (1)
A-4/5
20
Exchange Module itself (2)
A-5/5
Continue to the next page
Contents of LCD TV Standard Repair Process Detail Technical Manual
No.
Error symptom
Content
Page
Remarks
21
B. Power error_No power
Check front display LED
A17
22
Check power input Voltage & ST-BY 5V
A18
23
Checking method when power is ON
A19
24
POWER BOARD voltage measuring
method
method
A4
25
26
B. Power error_Off when on, off
while viewing
while viewing
POWER OFF MODE checking method
A22
27
B. Power error_Off when on, off
while viewing
while viewing
POWER BOARD PIN voltage checking
method
method
A19
28
C. Audio error_No audio/Normal
video
video
Checking method in menu when there is
no audio
no audio
A24
29
Voltage and speaker checking method
when there is no audio
when there is no audio
A25
30
C. Audio error_Wrecked
audio/discontinuation
audio/discontinuation
Voltage and speaker checking method in
case of audio error
case of audio error
A25
31
D. Function error_ No response in
remote controller, key error
remote controller, key error
Remote controller operation checking
method
method
A27
Continued from previous page
Established
date
Standard Repair Process Detail Technical Manual
Revised
date
A1-4
Error
symptom
Content
Check LCD back light with naked eye
A. Video
error_No
video/Normal audio
After turning on the power and disassembling the case, check with the naked eye,
whether you can see light from 8 locations.
whether you can see light from 8 locations.
<84LM96>
LCD TV
A1
2012. 08 .30
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