Disc Region Code; Cleaning And Maintenance; Cleaning; Handling The Disc Compartment - Hitachi GPM1NB10 Instruction Manual

4.10 Disc region code

Each region around the world has a different region number on the disc being sold in a region. The
region code of the product can be changed to other regions up to 5 times by using the software
decoder. After changing the region code 5 times, the product locks onto the last (5th change) region
code and would be unable to change to another region code anymore.

5. Cleaning and Maintenance

NOTICE
Unplug the product before cleaning.

5.1 Cleaning

- To clean the product, wipe with a soft, slightly damp cloth.
- Wipe the product dry after cleaning.
- Never use corrosive detergents, wire brushes, abrasive scourers, metal or sharp utensils to clean
the product.

5.2 Handling the disc compartment

- Do not insert foreign objects into the disc compartment as this could damage the mechanics.
- The information from the compact disc is read by a laser from an optical lens. If the product is
brought into a warm room after being in the cold, a build up of condensation on the optical lens
may affect the playback quality. In this case, let the product adjust to the room temperature for
approximately 1 hour before using. If the problem persists, consult a professional.
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