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When I use a projector and it is not shut down properly my monitor will not work unless I plug in projector again

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Need to close your projector same as you would a cam

Posted on Dec 11, 2012

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Shut down after 30 seconds


Many projectors shut down if they cannot find anything attached to them.
Make sure you have a computer attached and sending an image out to it before you hit the projector reset button again.
It's a bit like the chicken and the egg since some laptops won't send an image out the cable unless it senses a projector, and the projector shuts down if it does not detect an incoming signal fast enough.

Apr 23, 2014 | Acer PD528W Bulb

1 Answer

How do i switch to external monitor


Virtually all IBM and Lenovo ThinkPad and ThinkCenter laptops allow you to hook up an additional monitor or projector to the computer. When you add an external monitor or projector to your notebook, you can choose to view the display on the computer, on the external device, or on both the laptop and the external monitor or projector at the same time. Toggling between viewing devices is as simple as pressing a couple of keys on the keyboard.

Shut down the laptop. Plug the VGA monitor cable from the external monitor or projector into the blue VGA port on the back of the computer. Turn on the external monitor or projector first, and then the Lenovo laptop. Allow the notebook to boot into Windows normally. Press the "Fn" and "F7" keys at the same time to switch the display from the laptop to the external monitor or projector. Press the "Fn" and "F7" keys again to enable the display on both the laptop and the external display device. Press the "Fn" and "F7" keys again to display screen contents only on the laptop LCD. choose support you need http://www-307.ibm.com/pc/support/site.wss/MIGR-54305.html http://www-307.ibm.com/pc/support/site.wss/MIGR-4YQHUC.html enable tv out on thinkpad http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-58625

Feb 13, 2013 | IBM Lenovo 3000 N200 PC Desktop

1 Answer

NEC LCD1760V shuts power down after 3seconds


Hi Ron usually power down issues are caused by faulty power supplies especially if the projector looses power completely however the logic board could be protecting itself if it detects a fault such as a fan not working either way it is not recommended that you try to fix it yourself unless you know what you are doing, but it may be worth removing the cover and checking that the fans are working and connected properly, occasionally the lamp can be at fault especially if it has been used for many hours if the projector tries to power up and you see light through the lens and then it looses power its probably the psu at fault, if it powers up then goes into standby of fault then its most likely a logic issue. I hope this helps Regards Ant

Nov 30, 2011 | NEC Office Equipment & Supplies

1 Answer

Dell 1209S Projector, tries to turn on, and the fan comes on for 30 seconds and then goes off again. It tries this several times and then the light bulb icon comes off and it doesn't do antything else


Lamp is burned out or makes a popping sound.
When the lamp reaches its end of life, it may burn out and may make a loud popping sound.
If this occurs, the projector does not turn back on. To replace the lamp, see on page 38.
LAMP light is solid amber If the LAMP light is solid amber, replace the lamp.
LAMP light is blinking amber If the LAMP light and the Power light are blinking amber, the lamp driver has failed and the projector will automatically shut down.
If the LAMP light is blinking amber and Power light is solid blue, the color wheel has
failed and the projector will automatically shut down.
Unplug the power cord after 3minutes then turn the display on again. If this problem
persists, contact Dell™.
TEMP light is solid amber The projector has overheated. The display automatically shuts down. Turn the display on again after the projector cools down. If the problem persists, contact Dell™.
TEMP light is blinking amber A projector fan has failed and the projector will automatically shut down. If the problem persists, contact Dell™.

Oct 23, 2011 | Dell 1209S DLP Projector

1 Answer

Our club owns a Canon LV-7240 which has worked OK. Last night we showed an NTSC DVD from Europe and no red showed. We could see what the colours ought to be on the laptop screen. On the big screen,...


Can't answer for the menu issues, but I can garuntee this is not a problem with brightness, contrast or sharpness, and very unlikely that you'll find a solution in the menu. What is likely is that the VGA wasn't plugged in properly initially. When the signal is going down the VGA it's broken up into 5 seperate signals, Red, Green, Blue and 2 sync signals. What is likely is that the green and blue pins havn't properly made contact either inside the projector or inside the laptop. This would also explain why it worked when you tried later because it made the connection properly. I would suggest trying again with the same laptop, if it does it again, try another PC without moving the projector or the VGA connector that's plugged into the projector. This will atleast narrow down your problem, but it doesn't sound like a problem with the projector to me. Also try plugging the laptop that wasn't working properly into a monitor (this will test the laptop)

Mar 25, 2011 | Canon LV-7240 Multimedia Projector

2 Answers

Projector screen displaying "Searching" message. Does not recognize computer. Worked with one of your associates (Guru?) and we tried a number of solutions but none worked. She asked that I come back to...


If you are connecting to a laptop then you may need to hold the function button down and press F1, F2, F3 etc. there should be a sign with the latop on there and a sign with an external device (monitor,PROJECOR)
hope this information was useful to you.

Jan 21, 2010 | InFocus Office Equipment & Supplies

1 Answer

Sanyo xp-56 overheating with all air intakes clean


You have thermal protection issues.

On some projectors, once the thermal protection has been activated once, it will activate again at a lower temperature!!!

Inside your Sanyo there are several temp sensors (they are actually temperature-sensitive resistors, called thermistors). I have seen this many times as an electronic technician working on multimedia projectors. For the techs out there, they are actually NTC thermistors (NTC= negative temperature coefficient, meaning as temp goes up resistance goes down).

Once a thermistor has activated to save your machine form heat damage, it may activate again at a lower temperature. The only solution is to take your projector to an authorized Sanyo warranty repair depot, and have the thermistors replaced in your machine.

Typically, there is a thermistor to monitor lamp temperature, and a thermistor to monitor optical block temperature. Better quality machines may have more thermistors, some machines only have one to monitor the lamp temperature.


Mar 29, 2009 | Sanyo PLC-XP56 Multimedia Projector

1 Answer

Infocus lp600 not working


HI-

MAke sure that cables are properly connected, it might be that it is not getting any signal from the source.

Hope this helps

Oct 28, 2008 | InFocus LP 600 Multimedia Projector

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