AVHelp809: April 2010

Friday, April 16, 2010

EIKI LC-300 Video Projector

See also:
LC-300 Operator's Manual (link)

: EIKI LC 300

How to Tell the Difference Between (regular) 8mm and Super-8mm

Super 8 has noticeably smaller sprocket holes to allow for larger images on the film. By-the-way, the film is literally 8mm from side-to-side.

(click on pic to enlarge)
There is a difference in the reels for the two. The Center Hub diameter is larger on the Super 8. Most dual 8 projectors (projectors that can play both versions) had separate or integral hub adapters.

(click on pic to enlarge)

Change the Bulb Safely

When removing the bulb, use the base – don’t pull on the glass. This goes for all types of bulbs. For the ones with little, ejector arms (like in a Kodak slide projector), use the ejector to do most of the work, but go slow and don’t use a lot of force. If the bulb is really stuck, you may have to try to rock it back & forth – but use a shop cloth or some kind of hand protection between the glass and your fingers.
Also, when seating the bulb, make sure that the prongs / contacts are fully seated. If it is not fully seated and there is a gap between the base and a contact, the electricity will arc at that spot instead of flow, and that can cause the bulb to blow.
If you haven’t been around one, a bulb blowing-up sounds like a firecracker and explodes like one too (not to mention all those little, shards of glass . . . )

Clean the Bulb

If possible, wipe down the bulb with rubbing alcohol – and let it dry before putting in the projector. If rubbing alcohol isn’t available, just try to wipe off any fingerprints before installing it.
The glass is thin and expands & contracts with its own intense heat it generates. Under these conditions, simple dirt, grease and even fingerprints can potentially lessen the life of a bulb greatly.

Unplug the Projector

Always unplug the projector before changing the bulb. Most projectors are lower voltage models, but some lightweights are lighter because they don’t have a transformer & use straight, line-level voltage. Either way, you can get quite a shock in there!

Viewing Double-Sprocket Silent Films

If showing a double-sprocket silent film (i.e. an old high school basketball film), turn the sound all the way OFF, or it will sound like a machine gun! (the outside row of sprockets will run across the sound drum fooling it into playing it).

Show Close to Screen

8mm Projectors have deliberately low wattage bulbs as the film can burn easily. With this in mind, place the projector as close to the screen or wall as you can. This way you will see a smaller, but more concentrated image which will better approximate what you would see on a TV screen (from a film-to-DVD transfer).

Good Film Condition

Make sure the film is in good shape! There is no point in trying to run a torn and poorly spliced film through any projector. Especially make sure that the beginning of the film is clean and free of any physical defects.
Bent, torn, rough, jagged (etc.) edges will definitely cause problems when threading the film.
Torn sprockets can cause the projector to loose its upper or lower loops which then removes all the slack in the film and can lead to further sprocket damage, or breaking the film.
Many old home movies that have splices will tend to be brittle and dry. If the splice was an old edge (butt) splice, they can break easily. Tape splices will usually hold together.

Panasonic PT-LC80u

Thursday, April 15, 2010

3m Model 313 Overhead Projector

(In-House Use: Public and Staff)

EIKI SL-OL 16mm Projector – Description

The EIKI SL-OL 16mm projector was one of their “lightweight” line of projectors. It is arguably the safest design for projecting film: it shuts itself off before any sprocket damage occurs, and this feature works very well.

Ours is set to project at 24 fps (frames per second), which is the normal playback speed for sound films. Many home movies shot in 16mm were filmed at 18 fps, and will project a little fast.
This is a three-bladed shutter, not the five-blade telecine.
We can accomodate up to 2000′ films.
Tips:

If showing a double-sprocket silent film (i.e. an old high school basketball film), turn the sound all the way OFF, or it will sound like a machine gun!
Re-focus about 30 seconds after you begin watching the film as the lens will slightly expand in the heat of the bulb, and loose its focus a tad.
You can safely stop at any point an rewind. You can rewind while threaded through the projector or move the film to the top and rewind reel-to-reel.

8mm Kodak Moviedeck – General Description

Loading the Slides (link)

Changing the Bulbs (link)

Operating Manual (link)

Service Manual (link)

Tips (link)

We have Kodak Carousel 4600s and Ektagraphic IIIa slide projectors. For general purposes, they work identically to each other.
Each comes with:

Protective travel case
Remote Control
Spare Bulb
Standard Zoom Lens
80-count slide tray

We only use 80-count trays to be able to accomodate almost any slide thickness. These trays will handle paper, plastic and glass mount slides without jamming.
Call 260-421-1210 for more information.

Quick Guides:

Setting it up

What’s in the case:

Remove the Tray. Make sure the notch in the tray (carousel) where the Number Zero is, is aligned with the Arrow right above the “Select” bar. Then, just lift the tray off the projector. If the Arrow is not pointing to Zero, then follow the instructions in the picture below to align the tray.

Unlocking & removing Tray Ring.

The next step is Very Important:

MAKE SURE TRAY BOTTOM IS LOCKED.

General Controls

Front Controls

Focus and Zoom Lens Controls

zoom lens & focus

Remote Control:

Important usage note: There has always been an issue with all of these remote controls regarding Reverse.

Many times, if you just tap Reverse, it will go Forward instead. So, to make sure you really go in Reverse,

press & hold for about a half-second.

remote contol big

Plugging in the Remote Control:

Screens (Circulating)

We have two sizes of screens that can be checked out.

Larger one:

Draper “Diplomat”

Approx. 50″ x 50″ (71″ diagonal)
Weighs 25 pounds

Smaller one:
Draper “Consul”

Approx. 40″ x 40″
Weighs 15 pounds

3m 1800 Series Overhead Projectors – Description

User Manual (link)

Parts Manual (link)

The 3m 1800 Series Overhead Projectors are a relatively light-weight, portable projector. The lens arm folds-down and locks for travel, and the projector has a built-in spare bulb changer. The bulb changer allows for changing the bulb within seconds, from the outside of the unit without touching anything hot.
The projector body has a built-in carrying handle

CHANGING THE BULB DURING A PRESENTATION

If one of the bulbs burns-out during a presentation, you can switch bulbs within seconds – and, you do NOT have to unplug the projector, move it, or open it up. Just follow the steps in the pic below:
Changing Bulb Up and Over

Below are instructions for Staff procedures, not Public.

Replacing the Bulbs physically

Changing Bulb Brightness

Artograph Prism – General Description

Changing the Bulb (link; for Staff Use)

User Manual (link)

The Artograph Prism is a small, lightweight portable opaque projector. The “staging” area (the glass you put your image upon) is only about 6″ x 6.” For larger images either make a photocopy reduction or plan on moving the image around the staging glass as you work.
The Prism uses two 200-watt household-type lightbulbs (400 watts total).
Tips:

Use a high-contrast image, or line art
Make sure the room you’re using it in is as dark as possible
Tape your image to the staging area (masking tape is OK)
Set the projector where you think you’ll be using it. Project the image on the wall & move the projector to obtain the correct size you want for the projected image. Once you get the size right, it is easiest to then leave the projector alone & adjust the paper to the projected image.

A note about the Lens: There IS a lens with this! It is reversable, and fits inside a housing (tube). If the lens is pushed in the tube, it can appear as if the lens is missing. If the lens is reversed, it acts as an image reducer instead of an enlarger. lens inside housing