No power to monitors, but blinking led on ac adapters.
I unplugged the power cord before going out of town. When I plugged back in there was no power to the monitors. The ac adapters have blinking green lights and a ticking sound. Both of my monitors are fairly new.
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Re: No power to monitors, but blinking led on ac...
Try replaced with a new AC Adapter. If it still the same...then you got a busted backlight inverter. To order a new AC Adapter go to this site @ www.3rd-rocks.com click on lcd parts. have a nice day!
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If it uses a A/C power adapter aka (power brick) that the first thing I would check.. if you have voltmeter you check the voltage to make sure it's at least rated at or above the sticker value, if not try replacing it. If it uses a standard computer power cord and the power supplies is built-in to the monitor it might be bad or the main board has gone bad. Those most common cause in the that order power supply or mainboard.
Do a hard reset on the laptop by removing all cords and connections from the computer, including the power cord. Turn the computer over and slide the tab next to the battery, then lift the battery out of its compartment.
Eject any SD cards currently inserted in the SD card slot by pressing on them, then remove them from the slot completely. Hold the computer's "Power" button down for at least 15 seconds, then plug the power cord into the computer and turn it on.
Watch to see if the LED lights near the "Caps Lock" and "Num Lock" illuminate. If the lights do not turn on and the computer's screen remains blank, inspect the power cord and AC adapter for damage and replace them if necessary.
Leave the power cord plugged into the computer and snap the battery back into its slot. Allow the computer to sit for at least 30 minutes, then unplug the power cord and press the "Power" button again to see if the computer will turn on.
Plug the power cord back into the computer and try to turn it on again. If the computer turns on, replace the battery with a new one. If the computer still does not turn on, take the computer to a repair shop.
Below you will find my recommendations for troubleshooting this issue:
1. Reseat the power cord and verify a good power source.
To reseat the power cord, follow the steps below:
1.1 Power down the system. 1.2 Unplug the power cord. 1.3 Wait approximately one minute. 1.4 Reseat the power cord. 1.5 Verify that the power cord is plugged directly into a known good power outlet.
2. Verify that the monitor is receiving power from a known good outlet and bypass any power strips.
To test the power outlet, perform the following steps:
2.1 Unplug the monitor power cable from the power outlet. 2.2 Plug in a different device, and verify that the device is operational. 2.3 If there is no power try another outlet. Remove any power strips and try plugging directly into the main power outlet.
3. Verify the monitor is powered on and the power button is engaged.
Ensure that the monitor is powered on and that the power button is fully engaged. To do so, check the power LED on the front of the monitor; it should be lit.
NOTE: There are two types of power switches: A mechanical switch characterized by a long travel. You have to push it further and you will hear an audible click. An electrical switch that has a short travel and almost no click.
A lit monitor LED can be any of the following:
* Green * Blinking green * Yellow * Blinking yellow * A combination, such as alternating green and yellow
Any of these states indicate the monitor is receiving power and that you should proceed.
4. Swap power cables.
To try a known good power cable on the monitor, follow the instructions below:
4.1 Turn off a working monitor. 4.2 Unplug the cable from the back of the working monitor, and unplug the cable from the wall. 4.3 Unplug the cable from the monitor in question. 4.4 Plug in the cable that came from the working monitor.
5. Run the monitor self test.
To run the monitor self test, perform the following steps:
5.1 Power off both the computer and the monitor. 5.2 Unplug the video cable from the computer or video card. 5.3 Reseat the power cord to the monitor, ensuring it is plugged into a known-good outlet. 5.4 Power on the monitor.
NOTE: The monitor self test will move around on some monitor models. If the monitor self test moves, allow it to move to the affected areas of the monitor to check for the problem described.
If the Self test failed, it's possible that the monitor is faulty. Contact dell to check if it's still under warranty so they can replace it.
you may want to try what I did on monday when my view sonic started doing the same thing
And this is what worked for me.
1. I unplugged the monitor over night and plugged back in, in the morning and tryed to power the monitor and computer on but that didn't seem to do any thing, the monitor did not respond just continued to blink.
2. Then added a clip on magnet from my printer cable to the power supply cord to the monitor I then plugged back in the monitor and this time when I pushed the power button the button worked and the
small square yellow box on the monitor came on and then I turned on the CPU unit . Now I am
happy to report to you that I am now able to use the monitor again.
I hope this has helped.
This monitor is plug and play but the driver (or lack of) is not the problem. Its either your the power supply or the monitor itself has an issue with its internal power distribution circuitry. First make sure your power supply is operational. The original 120V AC to 12V DC 3.3 A power supply for the B70A had a green LED on the brick itself. You will find it on the top right corner of the brick, on the end where the DC cord comes out (opposite end from the AC input) If you have the AC cord plugged in the wall, the LED should be lit. If it isn't, the brick is no good, and should be replaced. Any 12 VDC adapter with an amperage rating of at least 1A but no greater than 3.3 A having the same size tip (with correct polarity) should work. If you have confirmed that the adapter IS functional and the monitor LED's still remain off, the internal power distribution circuitry of the monitor is damaged, probably caused by burst or leaking capacitors.
If it flashes ON and OFF when simultaneously unplugged from both power and the computer then it's trying to communicate with you.
Mine flashes code to me. It tells me what to do. Last night it told me to get it $5,000,000 in unmarked bills.
Seriously, turn the monitor on without connecting it to a computer.
If it flashes ON and OFF continously, then you have either a bad monitor or a bad AC/DC power adapter/brick (you know, the rectangular black corded adapter you plug into the wall outlet).
If it only flashes ON and OFF when connected to a computer, try the monitor on another computer.
If the monitor is 3-4 years old, it may be time to replace it since a replacement AC/DC adapter might be very hard to find.
Let me know what you find out, if you need more help.
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