Jon Brinkmann has written detailed step-by-step instructions. Experienced bulb-changers can read on.
- Remove the telescope cover.
- Disconnect the flat field lamp cable (at the top of the picture).
- Unscrew the wing nut (to the lower right of the projector lens) and carry the projector to the desk.
- Turn the lamp so the two white wires are up, then remove the four screws.
- Pull the lamp socket out of the projector and remove the bulb (pull).
- Insert a new bulb without touching it with your fingers (bulbs are in toolbox).
- Reassemble and reinstall the projector on the telescope.
- Don't forget to attach the cable.