09.15, 2012
Symptom
Normal operation at first
ATV/DTV not received after 2hr aging (especially when
switching channels)
Cause
Tuner defect : Un-lock occurs instantly because of AGC(Auto
Gain Control) malfunction.
How to
Inspect &
Handle
When channels are not received, TV turns off/on normally.
Under a normal operation, when conducting aging(10mins)
again and changing channels (up/down), the issue recurs.
Measure : Replace Tuner or Main Board.
Note
(Picture)
Manage No. 849
