User manual

Problem Possible Mistake Solution

I can’t turn on the planetari-

um.

The batteries could be improperly in-

stalled.

Check to see whether the batteries are placed in exactly the way described

in the instructions. Pay special attention to the directions of the terminals

(+/-).

Maybe the batteries are empty.

Install new, unused batteries as directed in the instructions. Pay special at-

tention to the directions of the terminals (+/-).

The projected image is distor-

ted, not completely round.

Maybe the objective lens is not per-

fectly parallel to the projection surface

(wall or ceiling).

Try to arrange the planetarium in the pedestal so that the objective lens is

parallel to the projection surface.

The projected image is

fuzzy.

The distance to the projection surface

(wall or ceiling) is perhaps too small.

The planetarium be at least 1.8 to 2 m away from the projection surface.

Check to see whether the distance is right and correct it if necessary.

The focus may not be adjusted pro-

perly.

Try to improve the focus of the image by turning the focus knob

The projected image is

showing ecks.

The objective lens is dirty.

Clean the objective lens with a clean, lint-free cloth, as described in the

instructions.

Troubleshooting

It can happen that your Astro-Planetarium doesn’t work properly. That does not mean that there is something wrong with the machine! It is often the

case that a small detail was forgotten while you were setting up. For that reason, we have compiled the most common mistakes here so that you can

try to x the problem yourself.