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Please check if the power cord is connected properly in the wall outlet and in the TV.
Check the wall outlet. Has it got power?
Check if there is red light when the power is switched on at the wall outlet. If there is red light then press the power button. Does the TV turn on? If not then your power button is defective and requires replacement as it is not making contact.
Also please try to start your TV WITH THE REMOTE CONTROL. At times it helps.
The only thing that could stop you from turning the printer on other than a broke printer is the power/power cord is not connected. The printer should turn on without a USB or parallel printer cable attached.
If no lights are showing when you try to power the printer, check the power connection in the back of the printer to ensure it is plugged in, check the plug into the adapter is connected and that the power cord's plug is connected to the wall outlet - if you have a power strip make sure it is turned on and the circuit breaker is not popped. Make sure that there is power to the outlet by plugging in something else to show it has power. If all of those check out ok and you have a meter, check for voltage at the power connector at the printer (pull the plug out of the printer and check voltage from inside the plug to outside the plug. It should be 18 vac.
If all of this is ok, there is something wrong inside the printer. Probably time for a new one as cost to repair is probably too high.
Check that the main power switch on the system rear is turned on.
Check the AC power cord is securely inserted in the system and the electrical outlet.
Also check the connecting power cord is not damaged/bent and the connections in the power plug are OK
MAKE SURE POWER CABLE CONNECTED TO REAR OF LAPTOP/PLUG END IN SOCKET/TURN ON SOCKET/MAKE SURE POWER AT SOCKET?
OPEN LAPTOP/SHOULD SEE LED(S) SHOWING?
LOCATE SWITC/BUTTON/PRESS/SHOULD HEAR HDD STARTUP AND SCREEN ACTIVATE?
Try pressing firmly on the keyboard around the 6 and 7 keys and pressing the power button at the same time. Works with my D600 which has the same problem. Apparently it is a common problem with something looses or not soldered properly under there. Will eventually get around to pulling mine it apart to see if I can fix the problem permanently but this "fix" has been working for quite while now.
try to unplug again then plug in switch-o the power if it won't work then your power supply is busted you need to replace the power supply. if you want to make sure dismantle the power supply that connects to the motherboard, the connector has 20pins, then plug the power supply connect pin green and pin grey if the fan will rotate then the power supply is still okay.. if your power supply is ok check your outlet voltage if there is power including the circuit breaker that supplies power from this outlet.