I can not understand your question.
the power switch on a camera turns on or off the camera.
The headlamp switch controls the power to the dimmer switch and then on to the headlights.The headlamp switch controls the power to the dimmer switch and then on to the headlights.
The switch on the back is the switch for the power supply only. The computer boots from the main power switch on the front. This particular method of switching was introduced with the ATX power supplies.
The power on switch
remove door panel check to see if you are getting power and ground to motor. If so, bad motor--if no power to motor, check to see if you have power to switch if so ,bad switch--if not bad power feed to switch close but if the switch not on, you never get power to the motor.
Switch form the power on and off
The power switch is usually located on the side of the machine, and turns it off and on.
In a compound Microscope, Power Switch turns on the lamp( Light source)
A power window relay switch relays the power from the car's battery, to the switch itself, and then to the window motor. When pressing the button inside of the car it allows the power to go from the relay switch to the motor and roll the window up or down.
no power on the power windows switch
Allright with a voltimitter check your switchs so when you roll them up or down you have power to the switch if not its your door switch. if you do have power check if you have power to your motor. there is no relay switch theres only fuses.