Hp pavilion a705w Light flashed in front and back on and off
My pc light blinked on and off, I unplugged it and turned it back on and the monitor wont come on. the tower does have and turn on but I can't get anything on the monitor, I unplugged the monitor from the unit and the monitor displays message unplugged. It seems the tower is on but not sending message to monitor don't know. I don't know if the motherboard is out or if the graphics card is out
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Re: hp pavilion a705w Light flashed in front and back on...
Try a different monitor with your PC. If it does the same thing then you know the problem is with your PC. Also connect your PC to a different monitor. If it works OK then your monitor is bad. Does it beep at startup? Describe beep codes and someone on this website will decipher them for you. This might help to diagnose the problem.
a 6ya Technician can help you resolve that issue over the phone in a minute or two.
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On the back of the power supply there is a 120/220 V AC selector switch.
It's possible that switch got knock on the wrong voltage position.
Pull the power cable.
Move the switch back and forth between the two position.
Make sure you leave the switch in the correct selection.
120v = USA
If you have time,open the case and inspect the RAM module(s) and card(s). They can be un-sitted.
plug in power cord and power on the pc.
The fact is *********** board is very likely the matter. See all devices that do not need the motherboard to respond are all working (cd/dvd tray opens and closes, fans are on etc). On the other hand all devices that need the motherboard to respond are not working (keyboard, optical mouse, etc). It is more or less conclusive.
If you are attempting to connect an LCD projector to a laptop,you connect a monitor cable to your video card and the other end to the monitor input connector. You may have to use an adapter, I know on my LCD projector I had to use a DVI to VGA connector.
Can't say much more not knowing if you are having a problem with a particular brand of projector