I have replaced the lamp on a LG RD JT40 projector but it still tels me that the lamp has exceded the 1500hr limet. I have checked the nenu and it seems that there is a option that is greyed out that might be the one I need to reset the lamp.
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Try to do this, press the ENTER button on the TV and the MUTE button on the remote at the same time. After 5 seconds the screen should come up and it will read "Lamp use time...Total lamp use time ....lamp reset" Press the center button on your remote (the circle button right in the middle of the four directional buttons) and you will be reset to -0- again. Your orange light should now be off.
if the lamp is still on and no picture transmits, reset the settings to factory default. the resolution doesn't match or the signal is lost. if the lamp goes out, you may need to replace the lamp. check the lamp for bulges, black spots or fogging. if the lamp is ok, check the colorwheel. if you hear squealing or chirping and it stops when the lamp goes out, replace the colorwheel. if that is ok, replace the ballast.
There is basically two ways to reset the lamp timer :
1. ) On the Projector's physical buttons
Arrow Keys - Up , Down , Left , Right then Menu and Enter - this should be done quickly whilst the Projector is in standby mode.
2.) Switch Projector on - Hold in the Up Arrow Key on the physical buttons on the Projector untill a PIP screen appears - then just follow the on screen steps.
I have just reset my lamp! Disconnect all cables but the power, switch on it will search for a source, the lamp timer message will display press exit untill it will give you a message to press menu to reset the lamp timer, it will give you a option to press left or right to reset. I used the buttons on the projector not the remote.