My Dell W1900 LCD TV is a couple of years old. Whenever we unplug it from the wall (or have a power cut), it forgets all its channel settings. I'm guessing that there's a backup battery in there somewhere that needs replacing - does anyone know whereabouts inside the set I should look for it?
Has it always forgotten the channels when you unplug it or is this just a recent development? I know that on my old standard tube television or VCRs, the channel memory is always reset if they are unplugged - the same being true if the power goes out.
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Dell tv/monitors turn off if there is no input coming from the selected input. In this case DVI, try powering on the TV and using the menu buttons along with the channel Up/down buttons on the tv to select a different input.
if its a w1900 this is a known setting. Press the menu button on the right hand side of the TV (second button UP, just above power/standby. Now, WHILE THE MENU LOCK MESSAGE IS BEING DISPLAYED, press CH ^ and VOL - AT THE SAME TIME. Menu unlocked message should be displayed.
And you're done.
Might take a couple of tries - this tv/monitor is a bit fiddly...
I have the same problem also. I am assuming that the power supply is bad. I have looked everywhere and can not find a replacement or the pinout on the supply. If anyone can find a service manual or a replacement board, please let us know.