When turning tv on again, have to tune in all channels, and does not pick up chanels straight away, may take 20 to 30 mins
Talk to LG to see if a KNOWN issue for your model.
SOURCE: i have a lg 52lg50 lcd tv,everytime i turn tv back
This memory loss issue sounds like a problem with the main board inside the TV. The channel memory should not erase after a power cycle.
You are probably loosing other custom programming like your Display and Audio settings. That is if you had modified something in these menus.
You may want to check to see if this is also happening by making a change in like the Display menu, and then turn the unit off and back on.
The TV has a one year warranty on parts and labor.
SOURCE: turning on tv on a morning is a night mare led is
usually is an issue with the power supply or power inverter for the tv. basically one of the capacators is not holding a charge like it should and is causing the power to drop. contact a repair technition or begin looking for a new tv.
SOURCE: When I tune to a digital channel my TV will
The problem you have mentioned is a clear case of logic control circuitry malfunction. These circuits are part of the main A/V board and replacing it should resolve the problem. The board costs about 100$ and is not that hard to replace so let me know if you wish to do it yourself.
SOURCE: LG 42LK450 flat screen.I tried auto tuning but
If your trying to receive over the air make sure the TV is not set to a Cable mode, if your on Cable your new TV is most likely a ATSC tuner (digital) and the cable company can map channels any way they want. If your old TV had the older style cable tuner, the lineup will be different.
HDTV has level thresholds, if the signal is weak you wont see anything, but the old TV would.
Without knowing much about where or what sort of TV your using, these are my best ideas.
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