I hav e a vivitek 1080hd projector and it turns on for a couple of seconds then shuts off. it blinks a code of 62. 6 blue blinks of the power button then 2 red blinks of the ready button

Blink Codes on Page 47 of the manual

https://www.vivitek.eu/Files/ProductDownloads/54/D8%20Series%20UM%20En%20D850%20series.pdf

This says your fix is to take it to a service centre. It sounds like you have a power board issue.

https://www.google.com/search?q=Vivitek+D855ST+power+indicator+flashes+20+times

..

IS THIS A COMPUTER?

No it is a
Vivitek Qumi Q5-RD review A portable but robust projector did you read the manual on this projector, No 2 projectors made work the same nor diagnose same or same error codes
thus the magic manual for that topic.

we use google to find manuals using clear english questions.
like

Vivitek Qumi Q5-RD manual. first hit google finds it, amazing no?
and is 7 years old now, 2013

page 48 is the only error pages..
blink codes. temp lamp blue binks is overhtemp]
did you clean the projector this old first all lint in all vents and inside, every drop of lint blown out? this is 1st on all things made that get hot. Computers and that. thing .

q5 series.
https://www.manualslib.com/manual/1140891/Qumi-Q5.html?page=48&term=error&selected=1

are not free manuals , not amazing, ?
or get the thing serviced in shop, not get electrocuted or burned.
respect both and win.

Not the lamp - if it were the lamp it would never turn on in the first place! Check for a defective component in the power supply area especially the capacitors. When their value changes, they are responsible for all kinds of erratic behavior. Items will not turn on, shut down after a few seconds, etc.

Clean the unit and make sure no dust is clogging the air to the lamp.

The blink pattern indicates the LED emitter is overheating.

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

hi,
All projectors have self dioganisng function. If there is any malfuction inside the projector it will indicated by the LED blinking. You have to inspect how many time the LED blinks or which LED lights condinuosly. LED meas the power light or the lamp light. Then only anybody can suggest you a better solution.
ok

some projector are normal like what what you mention...you need to connect a video source like computer or sound system that have a video output going to your projector...because if you power on the projector with out a video source you see only what you mention the logo of the projector..

The ballast unit has most likely failed. Replace the ballast unit, unless the lamp exploded and in which case, there may be glass fragments stopping a fan from turning.

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!