Read LG 50LN5400-SA / 50LN5400-SB (CHASSIS:LJ36B) Service Manual online
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
A11
22
Check power input Voltage & ST-BY 3.5V
A12
23
Checking method when power is ON
A13
24
POWER BOARD voltage measuring method
A4
25
26
B. Power error_Off when on, off while
viewing
POWER OFF MODE checking method
A14
28
C. Audio error_No audio/Normal video
Checking method in menu when there is no
audio
A15
29
Voltage and speaker checking method when
there is no audio
A16
30
C. Audio error_Wrecked
audio/discontinuation
Voltage and speaker checking method in case
of audio error
A16
31
D. Function error_ No response in
remote controller, key error
Remote controller operation checking method
A17
Continued from previous page
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