LG 55EA9800-SA (CHASSIS:EJ34D) Service Manual ▷ View online
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
Continue to the next page
Contents of LCD TV Standard Repair Process Detail Technical Manual
No.
Error symptom
Content
Page
Remarks
Continued from previous page
16
B. Power error_ No power
Check front display LED
A17
17
Check power input Voltage & ST-BY 3.5V
A18
18
B. Power error_Off when on, off
hil
i
i
POWER OFF MODE checking method
A19
18
while viewing
POW R OFF MO
checking method
A19
19
C. Audio error_ No audio/Normal
video
video
Checking method in menu when there is
no audio
no audio
A20
20
Voltage and speaker checking method
A21
20
Voltage and speaker checking method
when there is no audio
when there is no audio
A21
21
Remote controller operation checking
method
method
A22
D. Function error
22
Motion Remote operation checking
method
method
A23
23
Wifi operation checking method
A24
24
Camera operation checking method
A25
24
Camera operation checking method
A25
25
E. Etc
Tool option changing method
A26
Established
date
Standard Repair Process Detail Technical Manual
Revised
A1
Error
symptom
Content
Check LCD back light with naked eye
A. Video
error_No
video/Normal audio
LCD TV
2013.01.31
date
A1
Content
Check LCD back light with naked eye
After Remove the Rear Cover, turning on the power and disassembling the case,
check with the naked eye.
check with the naked eye.
A1
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