Vivitek Qumi Q5-RD turns off after a few seconds.

The blink pattern indicates the LED emitter is overheating.

The blink pattern does indicate that it is overheating. You can find the user manual for this device via a google search. The troubleshoot codes are on page 37.

The blink code indicates overheating. I suggest cleaning it.

It is most probably overheating. First you need to open up the unit and see if the fan moter is frozen. It is probably because you can't hear it spinning. There are usually two bushings one in the front and one at the rear of the motor. They are usually permentally lubricated but as we know nothing is forever. So, try to take some good quality oil like 3 in 1 and try to drip a drop on either side of the motor where the shaft comes out and then try spinning it by hand. Hopefully that may work but if not then as a last resort try spraying just a very small amount of WD-40 and try spinning it again. If it then does work then use the 3 in 1 again. WD-40 will probably clean the gum out of those bushings but it is not a proper lubricant so that is why you need to use that 3 in one or any good quality lubricant like gun oil.

If all else fails then you probably have a bad fan motor and it will have to be replaced. Just so you know I have had this same problem, usually with air conditioning fan motors and most of the time the lubrication method that I just described worked very well.

Good luck,

Marty

http://www.vivitek.co.uk/v_display_content_detail.asp?category_id=71&subcategory_id=428&product_id=204

Unplug the power cord from projector
--> HOLD down (keep holding down) the right key on the keypad (top of the projector) and Insert the power cord back to the projector
--> The "Power" and "Ready" LED light should blink TWICE and unplug the cord from the projector (while still holding down the right key)
from facebook site

Make sure you are using ports other than the USB port. Vivitek Service indicates that at least some of their projectors do not use the USB port for input. "The USB port is not in input port. This is used for service only. Please use another input port such as RGB input. Regards, Vivitek Customer Service

Hope this helps.

turn the tv ON: On the side of the TV press the menu and volume up buttons at the same time for three seconds. The 'reset lamp timer?' will appear on the screen. Press the OK button to accept. You're done!

On the side of the TV press the menu and volume up buttons at the same time for three seconds. The 'reset lamp timer?' will appear on the screen. Press the OK button to accept. You're done!

This works on a couple different Toshiba models -- might work on yours...

Make sure the main power switch is OFF. Hold the "ON", "MENU", and "INPUT" buttons at the same time and turn the main power switch on. Keep them held until the yellow power standby light comes on, then let go. It is done.