Question about JVC DLA-SX21U Multimedia Projector
After replacing the bulb and cleaning with compressed air the projector worked for a little while but now won't turn on and i get no lights on the top. I know there's a safety switch next to the lamp under the plastic cover but it seems to be making good contact. I tried two working bulbs, checked all the connections I could find inside the unit by disassembling the main covers, and cleaned everything out. Are there any other safety switches? Any ideas?
SOURCE: no signal optoma ep739
One good thing is that you are running XP. Will work on the premise (that you have posted) worked before and the driver (ForceWare91.31) was the only thing changed.
Let's try the easy ones first. Activate twin/dual view in your Display Properties. Right click on any clear area of your desktop, click on Properties, click on Settings tab, select monitor 1 or 2 depending which is your primary and which is your projector. Check (or uncheck-whichever works) on box "Extend....". Apply, OK.
do the same with nView Properties.
The hard ones are registry and/or inf editing, though I am reluctant to even suggest.
Incidentally, there is an application that is supposed to facilitate twin or dual view configuration, UltraMon. This may be better/safer way to address your concern.
If all else fails, you may have to rollback/downgrade your driver.
Posted on Jan 20, 2008
SOURCE: optoma ep739 won't power up
The lamp cover has a disconnect that won't allow power while the cover is off. Sometimes the piece of metal gets bent out of place.
Try removing the cover for the lamp, and bending the little piece of metal forward.
It worked for me!!!!
Posted on Nov 27, 2008
Apparently, the above posted steps do work, but they are finicky. The manual suggests that you do the aforementioned steps with the remote - I had tried with the remote and when that did not work I tried directly on the controls on the unit itself. Neither had worked - after multiple attempts, hence the posting above. The solution was that the various steps need to be done speedily - when I previously did it I apparently did not press the sequence rapidly enough. Nothing in the manual suggests that this is the case (and in fact I thought I had previously followed the steps in rapid succession on at least one of the many times I had tried, but apparently not quickly enough). I never could get this rapid succession of steps to work with the remote (as the manual said I needed to), but I did ultimately get the rapid succession of steps to work when done directly to the unit itself. The first three steps need to be completed within approximately 1-1.5 seconds, the final push of the volume+ button did require 2 or more seconds before the process was recognized (and complete). Never did have a single FixYa party try to address my issue - perhaps you only really get responses from them when you pay for their monthly service.
Posted on Sep 26, 2009
SOURCE: optoma projector
i'd say power supply issue, but the led is blinking green. this means that it thinks it's in warmup/standby mode. but if nothing's running, the main board might be bad and needs to be replaced.
Posted on Dec 02, 2009
Tips for a great answer:
Dec 07, 2014 | Optoma EP739 Multimedia Projector
Jun 29, 2011 | Optoma EP739 Multimedia Projector
Jun 06, 2010 | Optoma EP739 Multimedia Projector
Mar 01, 2010 | Optoma EP739 Multimedia Projector
Jan 29, 2009 | Optoma EP739 Multimedia Projector
Apr 27, 2008 | Optoma H30 Multimedia Projector
Jan 06, 2016 | JVC DLA-SX21 D-ILA Projector (DLA SX21,...
859 people viewed this question
Usually answered in minutes!