Operation precautions

1. Keep clear and prevent dust on the inner lens of the machine avoid reducing the reading ability of discs. All cover must be closed when not needing.

2. Protect your light pen. Please don't scan other things (e.g.floor, wall and etc) lest breaking. Take batteries out if you didn't use for a long time.

3. Take good care of your discs:
a.Don't touch the data side of disc, put CD away after finished.
b.Don't let discs shine directly by the sunshine or close to the heat source place, in case the disc is heated out of shape.
c.Clear disc by soft cloth if the data side was dirty, the cleaning begins from middle to side. (this operation----the less, the better)

4. CD must be used with the corresponding teaching material together.

5. Keep bar code intact and clean, the blank space beside bar code should keep clean, too.

6. The customer of PG-2002, A6, A8 and A9 must use the related adapter of our company, so as to ensure the life of product.