Optoma TX610ST flashing colors

I have an Optoma TX610ST short throw projector that begins to flash red, blue, green after it warms up.  It looks as if it is going into a test mode, but I cannot stop it.  When you turn the projector off and when you turn it on again, it is fine until it is warmed up again.  The color flashing starts slow, then gets progressively faster.  It is not happening on the monitor of the computer, and when I disconnect the VGA cable from the back of the projector, the flashing continues.  Any ideas are appreciated! Thanks!
NewMilfordAdminAsked:
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CallandorConnect With a Mentor Commented:
This is a DLP projector, which has a spinning color wheel in front of the bulb to generate colors.  It sounds like the syncrhronization of the wheel is off - you'll need to get it serviced, since that can't be fixed by users.
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