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There are a couple of things that could cause the radar to power off when going into the transmit mode.
The first thing to eliminate is input power. When in the standby mode the radar draws less current than in the tx mode so if you have low voltage for whatever reason, that could cause a shut down. Check all connections and measure the voltage to the unit while it is on.
A problem with the antenna motor or gear box could also be the problem. The antenna doesn't rotate unit the unit is switched to the tx mode. You would need to remove the dome cover (with unit off) and verify that the array will turn freely by hand. Typically, a bad motor will not cause a shut down but a physical obstruction could.
Focus on the power issue because that's the most common problem. Be aware that you need to measure the voltage as close to the radar display as possible and watch the voltage as you switch the radar from standby to transmit for a quick dip in voltage.
It sounds like there is a problem with the fuser unit, although am not sure why there is no error code. In the fuser unit, check the thermal fuse to see if it is open circuit. Then check the heat rod (fuser lamp) for same and, least likely, the thermistor that controls the fuser's temperature. Also make sure the surface of the thermistor is clean (remove caked toner) and is making good contact with the hot roller. When repairs are made, you may find that you have to enter a service mode and reset the machine.
1.Confirm the Gateway notebook is not powered off or in standby mode. Tap the power button to turn on or wake the computer.
2.Check the screen brightness. Hold down the "Fn" key, then tap the up arrow on the directional pad to increase the brightness of your Gateway 400's display.
3.Toggle the notebook display. If you have an external monitor hooked up to the laptop, hold down "Fn." Press "F3" until the display switches to the laptop, or until both the laptop and the external monitor display an active screen.
if overload warning displays only when you activate speakers "a",,, please check your wiring and speakers for that channel, first remove both A speakers turn it on, if its okey plug one speaker and try again if okey remove it and try the other one, when you see which one is it check the wire and the speaker ( every time you hook the speaker turn it off before that) overload means something is shorting and that protects the unit to prevent furter damage
This means that your laptop does not have the display drivers installed. Check you check in the control panel, go to system icon and click on device manager? Check to see what VGA drivers are installed.
Having too loud sound cannot damage the unit, the loud maximum sound is design for that unit, when its brand new one or 2 years old its okey.But when 2 to 3 or more years when voluming the maximum the it create a vibration that cause the "solder crack" and results intermittent sound goes on, goes off, that is your problem. You open the unit and got to supply section reheat or resolder the resistor, capacitor diode, transistor and most of all switching IC. when finish, go to audio section, do what u did in the supply section.Bear in mind not tosolder it causes trouble. When reheat all the solder, your unit is good as new.
Take every single cable out of the unit, now power on the unit.
If the power protection still shows then there is an internal fault, usually a short or a component defect.
If it powers on ok, switch off and insert 1 speaker at a time and power on the unit until the protection mode comes on again, the last speaker you have put in has overloaded it for some reason, also as you are trying each speaker use the volume and bass controls to see if there is an internal overload.
Thats as much as I can offer you until you narrow the fault down to the unit or one of the speakers.
before putting unit into the service mode, check that customer adjustments are in the normal mode. use the reset function in the video adjust menu to ensure customer controls are in thier proper(reset)position.
2.service number selection
once in the service mode, press the channel up or channel down button on the remote transmitter or at the set . the service adjustment number will vary in increments of one,from "S01"~"S19" to "M05". select the item you wish to adjust.
3.data number selection
press the volume up or down button to adjust the data number.
to enter the service mode.
while pressing the vol-up and ch-up buttons at once, plug the ac cord into the wall socket and switch on the main power. now the TV set is switched on and enters the service mode. to exit the service mode, shut the television off by pressing the power button.