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?
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Posted on Jan 02, 2017
the switch is on the electronic board under the tape compartment. you have to unscrew the screws and unplug all the wires to take it out. be careful though, you have to put it back the way it was otherwise you will mess up the machanisim on that machine. good luck
Posted on Apr 06, 2007
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: Remote control
You need to resurface the contacts. Here's how you do it:
First, disassemble the remote. Clean the black foil pads on the circuit board with rubbing alcohol. Now take a #2 pencil and a razor and shave the graphite from the "lead" onto a piece of paper (hold the blade perpendicular to the lead, this results in a finer powder). Now that you have a nice pile of powdered graphite, blot a Q-Tip into it to saturate the cotton with graphite. Rub the graphite onto the little black pads on the rubber button membrane, and be sure to apply more graphite to the Q-Tip every 2 to 3 buttons. Blow off any excess graphite. reassemble remote and test.
Posted on Aug 04, 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
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