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My screen will not come on and it flashes this message once "VGA NO SIGNAL". Then power button turns from green to yellow (standby mode). HELP!

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What computer is it?
When you say power button is yellow, do you mean on monitor or on computer?
Can you try a different monitor?
Perhaps try a different video card

Posted on Aug 29, 2010

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Nothing displays on the monitor when I turn on the computer


is there power to the monitor? is the monitor in standby(yellow light on monitor)? is the monitor on (green light on monitor)? how is the monitor connected to the computer, VGA (square fat cable, the end may be blue) or HDMI cable? When you turn on the computer is the power light on and HDD light flashing / showing activity? this would indicate that the computer is booting up. If you have power light and activity on the computer, I would unplug the data cable to the monitor. If the monitor is plugged in, i would press the power button to try and turn on the monitor / take it out of standby. If the monitor is ok you should see a message like "no signal" or "no input". This would tell you that the monitor is fine, but you may have a problem with the video card or video port on the motherboard. If you have no activity light on the on the computer, you may have a problem with the OS not booting up. You really didn't provide much detail on what has been done, but this is how I troubleshoot out in the field when working on something like this.

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Sony Bravia KLV-40X250A power indicator blinks once but screen is black


um u should turn your tv off for like 10 minutes , i think yourr tv is a internet tv so let it cool sometimes sony internet tvs freeze with black screen so try it out.
good luck :)

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My wii works but my controler dosent show up on the screen but the buttons work i need help


Usaully,
I don't know about the Wii but I know what happens with the light on the Wii

Green - The Wii Console is on

Yellow - You are connected to Wiiconnect24. It's harsh not to keep the "Yellow" light on because it could overheat the Wii Console. So if it's "Yellow", put your finger on the "Power" Button and keep it there for a long time. When you push it, it will start with Yellow then turn to Green then keep the finger there for a while then will turn to Red

Red - The Wii Console is off


Blue - You are connected to Wiiconnect24. When it turns Blue, It means you are getting a message from the Wii Console or on Standby Mode

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My 19" flatscreen monitor flashes on a blank screen and the power button light flashes on and off blue, no picture.


Problem in Your monitor VGA cable no horizental or Vertical signal.So it is not active standby mode.Check signal or VGA cable on not adjust properly CPU.or any other device.May be VGA cable was broken.Replace it.If you are not replace the part so you can get help any service technician.

Dec 27, 2009 | Soyo 19" LCD Flat Panel Monitor

1 Answer

Green light just flashes on and off and there is no displ


try to check your screen resolution maybe not compatible to your System. if green flashing there no signal from cpu to VGA cable monitor.

Jun 07, 2009 | Samsung Syncmaster 730B 17" Flat Panel LCD...

3 Answers

Lcd monitor power light flashing with no img. seems 2 be frozen


The display is in safe mode and you will need to reset the display to get the display out of the safe mode. There are 2 different model revisions. Please choose the method that will match your revision. Depending on the revision of the monitor, one of the following 2 methods should reset it to a normal state. This reset generally requires both hands and it is sometimes easier with another person.

If the serial number begins with an A and/or your power button on the far right (5th button from left):
Method #1
1. Unplug the VGA cable.
2. Remove the power cable from the back of the monitor.
3. Counting the buttons on the front of the panel from left to right as 1 – 5, hold the buttons 2 and 3 down at the same time (see picture above) and while continuing to hold the buttons, plug the power cable back in.
4. Keep holding the buttons for 5 seconds after the power has been plugged in and then let go. The green light should be steady when you release the buttons.
5. If the procedure worked, the green light will go to amber and you should see a "No Signal" message on the screen for a few seconds.
Method #2
1. Unplug the VGA cable.
2. Remove the power cable from the back of the monitor.
3. Counting the buttons on the front of the panel from left to right as 1 – 5, hold the buttons 2 and 3 down at the same time (see picture above) and while continuing to hold the buttons, plug the power cable back in.
4. Keep holding the buttons until the 4th green LED blink; then, let go. The green light should be steady when you release the buttons.
5. If the procedure worked, the green light will go to amber and you should see a "No Signal" message on the screen for a few seconds.


If the serial number begins with a B and/or your power button is in the middle (3rd button from left):
Method #1
1. Unplug the VGA cable.
2. Remove the power cable from the back of the monitor.
3. Counting the buttons on the front of the panel from left to right as 1 – 5, hold the buttons 2 and 4 down at the same time (see attached picture) and while continuing to hold the buttons, plug the power cable back in.4. Keep holding the buttons for 5 seconds after the power has been plugged in and then let go. The green light should be steady when you release the buttons.
5. If the procedure worked, the green light will go to amber and you should see a "No Signal" message on the screen for a few seconds.

Method #2
1. Unplug the VGA cable.
2. Remove the power cable from the back of the monitor.
3. Counting the buttons on the front of the panel from left to right as 1 – 5, hold the buttons 2 and 4 down at the same time (see picture above) and while continuing to hold the buttons, plug the power cable back in.
4. Keep holding the buttons until the 4th green LED blink; then, let go. The green light should be steady when you release the buttons.
5. If the procedure worked, the green light will go to amber and you should see a "No Signal" message on the screen for a few seconds.

If you have tried the reset a few times and it does not solve your issue, please Ask a Question to submit a request through the system or call 1-866-752-6271 Option 1 to contact technical support.

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2 Answers

LG LCD monitor goes in power saving mode


That means theres no signal coming from the PC. either the PC is not booting up or the VGA coard is faulty.

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1 Answer

Samsung color monitor


This problem may arise from monitor as well as from cpu.
First of all check it by unplugging the VGA monitor cable.
This will display the "Check Signal Cable" depending on the model of the monitor. But a message will appear rolling on the screen, if it is not a very old monitor.
If the message is appearing OK and green light is continuously on, that means ur monitor is working fine.
The problem may be with VGA cable or with the booting of CPU and probably the RAM. Recommended solution is to reconnect the RAM and then try, if u think u can do. Otherwise call a hardware engineer.
If there is no message and still the light is turning green and yellow. That means the problem is definintely in the monitor.

Thankyou,
Your well wisher

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1 Answer

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Completely remove the battery and unplug the power cord for a few minutes. Reinsert battery and power up. You can also hit F8 when starting and see if you can boot into safe mode.

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