LG 47LM8600 (CHASSIS:LJ23E) Service Manual ▷ View online
Check
location of
noise
location of
noise
Identify
nose
type
nose
type
Circuit
noise
Replace PSU(with LED driver)
Replace LED driver
Mechanical
noise
Check location
of noise
of noise
OR
※ When the nose is severe, replace the module
(For models with fix information, upgrade the
S/W or provide the description)
(For models with fix information, upgrade the
S/W or provide the description)
OR
※ If there is a “Tak Tak” noise from the
cabinet, refer to the KMS fix information and
then proceed as shown in the solution manual
(For models without any fix information,
provide the description)
cabinet, refer to the KMS fix information and
then proceed as shown in the solution manual
(For models without any fix information,
provide the description)
OR
※ Mechanical noise is a natural
phenomenon, and apply the 1st level
description. When the customer does not
agree, apply the process by stage.
※ Describe the basis of the description
in “Part related to nose” in the Owner’s
Manual.
phenomenon, and apply the 1st level
description. When the customer does not
agree, apply the process by stage.
※ Describe the basis of the description
in “Part related to nose” in the Owner’s
Manual.
E. Noise
Circuit noise, mechanical noise
Established
date
Revised date
14/15
LCD TV
Error
symptom
Standard Repair Process
14
2012.01.16
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
15/15
LCD TV
Error
symptom
Standard Repair Process
15
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
A. Video error_ No video/Audio
Power Board voltage measuring method
A4
5
A. Video error_ video error /Video
lag/stop
lag/stop
TUNER input signal strength checking
method
method
A6
6
LCD-TV Version checking method
A7
7
Tuner Checking Part
A8
8
A. Video error _Vertical/Horizontal bar,
residual image, light spot
residual image, light spot
LCD TV connection diagram
A9
9
A. Video error_ Color error
Check Link Cable (LVDS) reconnection
condition
condition
A10
10
Adjustment Test pattern - ADJ Key
A12
11
<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
12
Exchange T-Con Board (2)
A-2/5
13
Exchange LED driver Board (PSU)
A-3/5
14
Exchange Module (1)
A-4/5
15
Exchange Module (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
16
B. Power error_ No power
Check front display LED
A17
17
Check power input Voltage & ST-BY 3.5V
A18
18
Checking method when power is ON
A19
19
B. Power error_Off when on, off
while viewing
while viewing
POWER OFF MODE checking method
A22
20
C. Audio error_ No audio/Normal
video
video
Checking method in menu when there is
no audio
no audio
A24
22
Voltage and speaker checking method
when there is no audio
when there is no audio
A25
22
D. Function error
Remote controller operation checking
method
method
A27
23
Motion Remote operation checking
method
method
A28
24
Wifi operation checking method
A29
Continued from previous page
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