LG 65LA9650-UA (CHASSIS:LA34N) Service Manual ▷ View online
D. Function error
External device recognition error
Established
date
Revised date
14/16
LCD TV
Error
symptom
Standard Repair Process
2013.01.31
External device recognition error
Revised date
14/16
Check technical
information
- Fix information
- S/W Version
information
- Fix information
- S/W Version
N
Technical
information?
Check
input
signal
input
signal
Signal
input?
input?
Y
External Input and
Component
Recognition error
Replace Main B/D
S/W Version
Y
N
Check and fix
external device/cable
external device/cable
HDMI/
DVI, Optical
Recognition error
Replace Main B/D
Fix in
accordance
with technical
information
14
E. Noise
Circuit noise mechanical noise
Established
date
Revised date
15/16
LCD TV
Error
symptom
Standard Repair Process
2013.01.31
Circuit noise, mechanical noise
Revised date
15/16
Check
location of
location of
Identify
nose
nose
Circuit
noise
Replace PSU
noise
type
noise
Mechanical
noise
Check location of
noise
noise
noise
noise
※
When the nose is severe, replace the module
(For models with fix information, upgrade the
S/W or provide the description)
S/W or provide the description)
※
M h i l
i
i
t
l
p
p
)
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,
then proceed as shown in the solution manual
(For models without any fix information,
OR
※
Mechanical noise is a natural
phenomenon, and apply the 1st level
description. When the customer does not
agree, apply the process by stage.
※
description. When the customer does not
agree, apply the process by stage.
※
Describe the basis of the description
i “P t
l t d t
”
i th O
’
(
y
,
provide the description)
in “Part related to nose” in the Owner’s
Manual.
Manual.
15
F. Exterior defect
Exterior defect
Established
date
Revised date
16/16
LCD TV
Error
symptom
Standard Repair Process
2013.01.31
Exterior defect
Revised date
16/16
Z
i h
Replace module
Zoom part with
exterior damage
exterior damage
Module
damage
Cabinet
Cabinet
damage
Replace cabinet
Replace remote controller
Remote
controller
Replace remote controller
controller
damage
Stand
dent
Replace stand
dent
ep ace sta d
16
Contents of LCD TV Standard Repair Process Detail Technical Manual
No.
Error symptom
Content
Page
Remarks
1
A Video error No video/Normal
Check LCD back light with naked eye
A1
A. Video error_ No video/Normal
audio
audio
2
Check White Balance value
A2
4
A Video error video error /Video
TUNER input signal strength checking
method
method
A3
A. Video error_ video error /Video
lag/stop
lag/stop
5
LCD-TV Version checking method
A4
6
Tuner Checking Part
A5
7
A. Video error Vertical/Horizontal bar,
LCD TV
ti
di
A6
7
A. Video error _Vertical/Horizontal bar,
residual image, light spot
residual image, light spot
LCD TV connection diagram
A6
8
A. Video error_ Color error
Check Link Cable (EPI) reconnection
condition
condition
A7
9
Adj
A J K
A8
9
Adjustment Test pattern - ADJ Key
A8
10
<Appendix>
Exchange Main Board (1)
A-1/5
11
Exchange Main Board (2)
A-2/5
Appendix
Defected Type caused by T-Con/
Inverter/ Module
Inverter/ Module
12
Exchange Power Board (PSU)
A-3/5
13
Exchange Module (1)
A-4/5
14
Exchange Module (2)
A-5/5
14
Exchange Module (2)
A 5/5
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