LG 28LJ400B Service Manual page 27
Hide thumbs
Also See for 28LJ400B:
- Easy setup manual (45 pages) ,
- Owner's manual (43 pages) ,
- Owner's manual (29 pages)
Advertisement
Standard Repair Process
Error
LED TV
symptom
6 Function Trouble TV video
A4-1 Function error
TV video error
Check input RF signal
N
Check the RF source
Check power supply circuit
Check IIC circuit
Check tuner and
peripheral components
Established
date
Revised date
TV can't search any
channel/no picture
Y
Check tuner power
N
Check if IIC work
N
Check IFP/IFN output signal
N
Check the circuit from
tuner to U1(MSD3553)
201 .
.
Y
Y
Y
2017
6/1
Advertisement
