Maintenance and Troubleshooting
88 Runco SC-1 Owner’s Operating Manual
PRELIMINARY
5. Using a hex wrench of the appropriate size, loosen the set screws from the
negative/cathode (rear, 7/64”) and positive/anode (front, 3/16”) lamp connectors; see
Figure 5-1. Apply minimal torque and DO NOT stress the quartz tube.
Figure 5-1. Disconnecting the Old Lamp
6. Carefully slip the positive anode connector off the front of the lamp.
7. Handling by the cathode end only, unscrew the lamp from the rear connector and
carefully remove it from the projector. Immediately place the lamp inside the protective
cover (saved from previous installation) and then seal it in a heavy carton on the floor
where it cannot fall or be bumped.
8. With the lamp removed, visually inspect the reflector for dust. Clean if necessary as
described in When to Check the Lamp Reflector on page 85.
9. Remove the new lamp from its protective cover: Remove the tape, knurled nut
and locking star washer (if present) securing the lamp within its cover.
10. Handling at the ends only, extract the lamp from the cover. Set aside the protective
cover for re-use in your next lamp disposal or for warranty return of an expired lamp.
11. Install new lamp: With protective clothing and face shield on, insert the threaded
cathode (–) end of the lamp into the negative lamp connector nut located in the rear of
the lamp compartment and screw in fully; see Figure 5-2. Hand-tighten only.
Handle the box with extreme caution. The lamp is hazardous even
when packaged. Dispose of the lamp box according to local
safety regulations.
Handle the lamp by the cathode/anode end shafts only, never the
glass. Do not over-tighten or stress the glass.
Remove anode connector
Remove cathode connector
(inside lamp cooling compartment)
WARNING
WARNING