I know this is a long shot since the last posting was in 2017.
I have a 6500UB that has been a workhorse for over 10 years but now I have a problem
I turn on the projector and it boots up fine, I can use it as usual for as long as I like.
when I power it down, the fan now stays on for exactly 12 seconds. This is bad because after a long session it used to stay on for maybe 10 minutes or so.
If I try to power it back up within a couple of hours, the following happens:
1. the "click" as the power comes on
2. the whirring of the auto-iris EXCEPT that it takes 3 or 4 times as long (very long whine)
3. the fan kicks into high gear, really running much faster than usual
3. Both the power and temp lights start blinking RED.
This mode continues for 15 minutes or so and then it completely shuts off.
If I try to turn it back on, it just repeats the sequence above.
If I wait maybe 2 hours, it usually turns back on and and operates normally.
I'm thinking that something on the control board or perhaps the temp sensor is faulty causing it to shut off the cooling fan before it gets cool enough and when I try to start it again, it reports to hot.
Any advice is appreciated. I am pretty handy with electronics and if I could find a service manual and a replacement control board, I would replace it. The nearest Epson service center for this projector is 200 miles distant so I would have to ship (not cheap) and then maybe not have the repair done if too expensive.
If it's over $500, I will just get a new projector (5050UB, maybe?)