Backlight only comes on when the power button is pushed

The display backlight for the clock is likely burned out, pull the clock and have it repaired.

From the manual:

This alarm clock radio features an adjustable display backlight, with dim, medium, and bright settings. To select a backlight setting, press the Snooze/Dimmer Bar until the desired brightness is reached.

Did you solve this problem? The same thing happened to me. I only unplugged mine and then replugged it in.

1

Check the orange "Hold" switch on the left side of the Sansa C150, if you cannot turn on the MP3 player or if none of the buttons is working. When the "Hold" switch is up, the buttons are disabled. Slide the "Hold" switch down to activate the buttons again.
2

Press and hold the "Power" button until the LCD screen lights up when turning on the MP3 player. Pressing the button quickly does not turn on the device. The "Power" button is located on the front of the device, under all the other control buttons.
3

Replace the AAA battery, if you cannot power on your MP3 player. To replace the battery, remove the battery cover from the back of the device by pressing in on its tab and pulling it off. Remove the old battery, insert the new battery and replace the cover. One AAA battery provides approximately 15 hours of power for your Sansa C150.
4

Change the backlight settings to conserve battery life. This is useful if you find the battery loses power quickly during normal use of your Sansa C150. To change the backlight settings, choose "Settings" to bring up the "Settings" menu. Select "Display," "Backlight" and then a shorter backlight time. The backlight will shut off after a period of inactivity that matches your backlight setting.
5

Review your music purchases to understand what rights you've purchased to the content, if you are unable to play a track back on your Sansa C150. When you purchase music, it comes with certain rules for how you can store and play it. You may not have paid for the right to transfer the song to a portable media player.
6

Reset the Sansa C150 if it acts erratically or if you have other problems. To reset the device, open the "Settings" menu and choose "Reset All." Choose "Save" to finish restoring the MP3 player to its factory default settings. If you decide not to reset the device during this process, select "Cancel" instead of "Save."




~KenjiFox

Sharp LCD tv tend to have trouble with power LED light and OPC light flashes together?That what u having?Yes,this tv is having trouble with it tv Tuner signal board itself.This tv is still useable.By pushing the power button again and wait for awhile than the backlight will come on and work,Sometime Power and OPC LED lights flashes quit awhile.Just have to push power button and wait have to do this 3 or 4 times,before tv backlight to come to work.I have a Sharp Aquo my self 46' do this most of the times.

This problems very common in Sharp LCD tvs.The Tuner signal board have problems,every times the power LED,OPC LED lites up,just push the power button on again,wait see if the LCD backlight lite up and works,not the Power lite and the OPC lite LEDS flashes again.You,just have to push the power button again,sometimes u have to push the power button at least 6 or 7 times to get the Power LED stable,and then LCD backlight,come on than the tv work.Not sure,but if the Power and OPC lites keep flashing,after u pushes the power button at lest 10 or 12 times,and the LCD backlight dosen't come on and the tv don't work.I think,it time to change the Tuner board is completely dead.I have a Sharp LCD tv, I do this everytimes pushing the power button at least 3 or 4 than the power LED stable,and the LCD backlight come on than the tv work.Not a plaw in the power supply like those capacitors in many LCD models tvs,but some included Sharp Tvs is the Tuner signal board is not very good in design,use the tv awhile the Tuner signal board have problems recieving the power to it Tuner board components.

This is very common in sharp tvs.U turn it on.U get power on light stable right?U hear a click,one or twice,sometime tv is good right?Sometime POWER light and OPC light flashes?Push the power button on/off couples times will work, picture will come on.If keep trying off/on couples time after POWER and OPC flashes,don't ever stop and never get backlight and picture.Ur Video backlight board is dead must replaced.

is it an LCD monitor?
if so then it's more than likely the backlight tubes or the backlight tubes inverter supply has died is it fixable but i am not sure how much it will cost you at your local repairer and monitors are so cheap these days its probably not worth it!
hope this helps,ben

The backlight comes on automatically when plugged in and 3 seconds after the talk bar is pushed if the unit is operating on battery. The colors are based on temperature