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KODAK EKTAGRAPHIC III Slide Projectors
Operating Manual

Appendix A

Special-Application Receptacle Identification Chart


Contacts Function Description
1 & 3 Zero-Position Switch (Models A and E Plus) Connects to an internal single-pole single-throw normally open switch. Contacts are closed when the slide tray is at any position other than zero. These leads connect only to the switch terminals. Do not exceed a switching load of 1 A at 30 V ac.
4 & 5 Shutter Switch Connects to an internal single-pole single-throw normally closed switch. Contacts are open when a slide is in the projector gate and the shutter is open. These leads connect only to the switch terminals. Do not exceed a switching load of 1 A at 30 V ac.
7 & 8 Low-Voltage Supply For operating external equipment. The current is supplied by a secondary winding on the main motor, isolated from the line-voltage power, and is available whenever the main projector motor is running. Supply is 25.5 V, 500 mA (1/2 A) maximum. Contact number 8 is common (return) for the remote-control circuit. Contact number 7 is the "hot" lead and is fused with a slow-blowing fuse. (Replacement requires disassembly of the projector by a qualified technician.)
6 & 8 Forward Tray Connects to the forward tray-advance circuitry in the projector. These contacts are connected internally to the remote-control receptacle and an electrical connection made at either receptacle will result in a forward cycle.
2 & 8 Reverse Tray Cycle Connects to the reverse tray-advance circuitry in the projector. These contacts are connected internally to the remote-control receptacle and an electrical connection made at either receptacle will result in a reverse cycle.
Shell Plug Ground If a plug with a conducting shell is used, it is connected to the projector frame (chassis) through the special-application receptacle and to earth ground through the projector's power cable.

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Operating Manual Contents

| Important Safety Instructions | Overview | Introduction & Operation/Startup | Slide Tray | Projecting Your Slides | Editing Your Presentations | Clearing a Gate Jam | Using the Built-In Viewer | Using a Disolve Control | Shutdown | Maintenance | Changing the Projection Lamp | Cleaning the Condenser, Heat-Absorbing Glass, and Mirror | Troubleshooting | Warranty | How to Obtain Service | Special-Application Receptacle Identification Chart