Question about Office Equipment & Supplies
Posted by Anonymous on
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Posted on Jan 02, 2017
Sounds like your black screen shutter is not opening allowing light to pass through. Try it with the carousel and slides installed. Run a few passes.
Posted on Dec 08, 2007
SOURCE: why wont it stop
With that style (4400) of projector, this was usually caused by the trigger on the clutch assembly getting gunked up with dirt and/or grease. Assuming you've removed the bottom of the projector and it's now upside down, lens facing away from you, you'll see a large white gear and near the edge of it will be a grey metal sort of trigger. On it may be resting the L-shaped finger attached to a solenoid.
IF you are confident you can operate this safely with power applied, you can do this, ONLY to help pinpoint the location if you need help. Then remove the power again. *If you are not sure, do not apply power.* Using the remote control so you do not have to put your finger near the cycle (forward/reverse) buttons on the projector's side, activate the forward button, with power turned to fan only (or remove the lamp module). You will see the L-shaped solenoid finger jump briefly and the grey metal trigger
may rock a bit as the gear turns around. And in your case, continues.
Disconnect power if you had it on, and look at the little grey trigger. There is a tiny spring on it and it pivots when you press gently on it. What should be happening is that the L-shaped finger gets caught on that grey trigger and stops the rotation of the gear, as the trigger rests in the edges of the gear. When the solenoid is activated, the L-shaped finger jumps up, releasing the grey trigger which can then rotate one cycle. The trigger should immediately have gone back to its resting position so that it catches the L-shaped finger again and the finger holds the trigger which holds the gear(clutch) from rotating.
Dirt and lubricant has gotten in there and the grey trigger cannot return to its position in time. Eventually it may if you let it cycle long enough. The solution? Use some contact cleaner to clean out the gunk from the pivot of the trigger. It shouldn't take too much. In a pinch you can likely use isopropyl (rubbing) alcohol with cotton swabs. Clean away all the gunk you can but be careful not to get the degreaser on other components. Lint free cloth or paper towels around the clutch gear may be helpful.
Now, the trigger should be able to return to its resting position quickly. If not, repeat degreasing- again it usually doesn't take much. Now, put only one (maximum 2 small) drop of very light oil. Consumers can use sewing machine oil. Too much will later lead to the problem recurring.
Now your projector should be cycling fine, though you might have to turn it right side up to judge accurately. If so, turn it over again,power off again and look where the grey trigger and the L-shaped finger contact each other. Steal just a little bit of grease from the large white clutch gear -use some soft plastic piece like a cotton swab shaft so you don't gouge the gear- and apply it to the contact point. This is not absolutely critical but is recommended to avoid excess wear at that point.
Reassemble, being careful to dress (put inside the housing) the wires so they don't get pinched. Do not over tighten the body screws. If you like you can e-mail me at email@example.com and put "Projector" in the subject line.
Posted on Mar 28, 2008
This problem is caused by the cycle contact requiring an adjustment. Unplug the projector, remove the lamp module, turn the projector upside down & remove the bottom cover. Near the center of the projector is the Slide Change Mechanism. At the center of the mechanism is the Camstack. Refer to the illustration for the correct position of the clutch contact to the cycle pad. You will have to bend the clutch contact wire (GENTLY) a little bit, then plug in the projector & cycle it Forward a few times and check the position of the wire to the pad. This adjustment usually takes a trained hand a few times to get the position correct. If you don't want to tackle it, contact a factory-trained repair dealer for assistance. Good Luck !!
Posted on Dec 21, 2010
The problem is continuous cycle (like you don't know that already...). It indicates that an adjustment to the cycle contact is necessary. To open the projector, first unplug it and remove the lamp module from the rear of the projector. Turn the projector upside down. Remove the 6 - T15 TORX screws from the bottom (5 around the perimeter and one in the channel next to the cord wrap). CAREFULLY pull the bottom off (the power wires connect the bottom cover & top together!!). Once you have it open, leave the projector upside down, put on your safety glasses & plug the projector into the wall. At the center of the projector you should see a hub rotating about every second or so. Above it you should see a "J"-shaped wire. See the attached illustration.
You will have to, in repeated steps, unplug the projector, bend the "J"-shaped wire GENTLY & SLIGHTLY, plug the projector back in and cycle it a few times. Check for the position of the "J"-shaped wire to the pad, and GENTLY repeat until you achieve the position shown in the illustration.
Good Luck !!
Posted on Dec 30, 2010
Your problem is most likely caused by a broken wire under the control panel or a wire somewhere in the "cycle circuit" that is no longer connected. You should seek out a factory-trained repair dealer who has a schematic that can trace down your projector problem.
Posted on Jan 04, 2011
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