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Press the (ON/STANDBY) switch to turn on the projector. If
the power is not turned on, disconnect the AC power cord, then
confirm the ON/STANDBY lamp is turned off. After about 10
seconds, reconnect the AC power cord and turn on the power
again. If the indicators still light up, the electrical system has a
problem. Consult with qualified Sony personnel.
Error LCD: System Error EXXX (MF4400/MF4500/D500 Series)
A system error has occurred. <XXX> will be a three-digit code that indicates a particular type of error.
Turn OFF the main power switch, wait for more than 5 seconds, then turn it ON again. If the message persists, turn OFF the main power switch, disconnect the power cord, and contact Canon Customer Care Center.
Is the printer off?
Press the I on the power switch to turn the printer on.
Is the power cord loose or disconnected?Turn the printer off and connect the power cord properly. Turn the printer on again.
Is the printer connected to a correctly rated outlet/socket?Connect the printer to an AC power outlet/socket that you know works. Do not connect any other equipment to the outlet/socket. Do not connect the printer to an auxiliary power outlet on the back of a computer.
Is the printer defective?Turn the printer off immediately, disconnect the power cord from the outlet/socket, and contact your dealer or Brother Customer Service.
I have the same monitor & just had same problem. Did you find a solution to your problem? This is the second time my monitor has done this. The first time I had problem i unplugged it and disconnected it from pc. Plugged it into power source and blue pilot light came on then went off. I did see the LG logo on screen before it shut down. After several times doing this and pressing the power switch repeatedly it seemed to reset and recognized it was not receiving a signal and indicated this. I then reconnected monitor to pc and all appeared to work fine for several days. Now I again have same problem after sitting over night.
I had a similiar problem with a laptop. Just stopped working one day. Could not shutdown because it would not restart without disconnecting power. Could not reboot, because it would not restart without power being disconnected.
Checked Computer Management Services and found some of the services had been turned off.
Sony TVs come with a one year warranty on parts and labor. Call Sony at 1-800-222-SONY They will find a local company to service this product.
These TVs have a self-diagnostic screen that a tech can access to help solve the problem. Your problem could be any number of things including the fan(s) stopping, the ballast board failing, Q-box issue or none of the above.
if your tv unit is still under warranty, first you better bring it back again to the store you just bought it for warranty purposes, your tv has an internal problem, maybe manufacturer defect. Usually the cause of that is a shorted electronics component, say for ex, a mosfet transistor that is located at the power section, or maybe a capacitor that is leaky, and also an open resistor. if you don't know how to troubleshoot this problem, you better have your tv unit repaired by a professional tv technician.
Turn power off and unplug power from computer.
Unplug printers,backup drives and speakers.
Open case and unplug power supply from the board.
plug power cord back in press the power button.
Of course nothing will happen.
unplug power cord again.
plug power supply back into the board.
plug power cord backup and press power switch.
If nothing happens unplug power cord again.
pull out your memory sticks and plug cord back in and press power button.
Of course not much will happen.
But really something is happening to your computer so continue.
Pull power cord and replace memory sticks.
replace power cord and press power switch.
Continue this pulling out pci cards one at a time until you find out what the problem might be.
Try different keyboards and mice too.
Hi, you most probably have a sticky on/off switch on your case. Turn the power off. Remove the side cover, trace your wires from the front switch to the mobo, identify witch is the power switch
[this is usualy marked with PWR or PWS on the board and also on the wire from the switch.
Disconnect this wire then turn on the power and use a fine screwdriver to bridge the two pins on the board, if all works properly then replace the switch