My set works for about one hour,then shots down.how can i rectify this problem

LG tv47ld450-ua is not a cars & trucks question. Repost in the proper format to get someone to help.

Double check your programming...there may be another scheduled 'event' and its dopping to a lower setting. A long shot though, if you are familiar with your particular stat.

rectifier regulator /or alternator ...start engine ..put meter on wire coming from alternator if over 14.0 volts its shot should be 13.5 to 13.9 if thats ok rectifier regulator is shot

Just put a speed sensor on my 87 Aspencade. Just read 0 on the speed ometer. The plastic gear in side of the the speedometer was shot. There was no teeth on the gear. Cost around $80.00 for the part and about an hour to tear down and put back together. When I pulled it apart i could see that the plastic gear was shot.

Chage the GMT timing in the Time and Date settings of your Mobile friend. The problem Rectified,

your converter is shot cost about 120 for that to be rectified go to a transmission specialist for proper help

Is this a problem with this lens only ? Try this lens on a friend's XSI/450D or try another lens on your camera body. Try all 3 AF modes.

You have set it to auto mode. Set it to manual mode.

Check the output voltage to the battery charge rectifier. It should be around 18 to 30Vac. Anything lower the windings behind the flywheel are shot. If voltage is present, then the battery charge rectifier is shot.

A camera flash against a glass, or any reflective surface, will bounce the flash light right back at you. Turn off flash when shooting through glass. Note flash is only for shots less than 12 ft distance. It take it you are shooting scenery shots through vechicles or buildings, ie, long scenery shots anyway, so flash does nothing but bad things.