Kenwood DP-4090 User Manual - Page 7

Maintenance Disc handling precautions Handling Hold compact discs so that you do not touch the playing surface. Sticker Label side Playing side ÷ Do not attach paper or tape to either the playing side or the label side of compact discs. ÷ The paste left on the label surface after a sticker has been peeled off is a factor which may cause malfunction. If the surface is sticky due to remaining paste, be sure to clean it with alcohole before Sticky paste use. Caution on disc used Discs which can be played with this unit DP-5090/4090 (En) 7 Cleaning If fingerprints or foreign matter become attached to the disc, lightly wipe the disc with a soft cotton cloth (or similar) from the center of the disc outwards in a radial manner. Storage When a disc is not to be played for a long period of time, remove it from the CD player and store it in its case. Never play a cracked or warped disc. During playback, the disc rotates at high speed in the player. Therefore, to avoid danger, never use a cracked or deformed disc or a disc repaired with tape or adhesive agent. Do not use cleaning discs. Please do not use commercially available cleaning discs, they may damage the internal mechanism. CD (12 cm, 8 cm) (CD-TEXT support), CDV (only the audio part) ÷ With CD-G (CD Graphics) discs, this unit can play only the audio. Cleaning Do not use volatile solvents such as alcohol, paint thinner, gasoline, or benzine, etc. to clean the cabinet. Use a clean dry cloth. Do not use contact cleaners because it could cause a malfunction. Be specially careful against contact cleaners containing oil, for they may deform the plastic components. CD accessories The CD accessories (stebilizer, protection sheet, protection ring, etc.) which are marketed for improving the sound quality or protecting discs as well as the disc cleaner should not be used with this system because they may cause malfunction. Note related to transportation and movement Before transporting or moving this unit, carry out the following operations. 1. Turn the power ON but do not load a disc. 2. Verify that the display shown appears. NO DISC 3. Wait a few seconds and turn the power OFF. Beware of condensation When water vapor comes into contact with the surface of cold material, water drops are produced. If condensation occurs, correct operation may not be possible, or the unit may not function correctly. This is not a malfunction, however, the unit should be dried. (To do this, turn the POWER switch ON and leave the unit as it is for several hours.) Be especially careful in the following conditions: ÷ When the unit is brought from a cold place to a warm place, and there is a large temperature difference. ÷ When a heater starts operating. ÷ When the unit is brought from an air - conditioned place to a place of high temperature with high humidity. ÷ When there is a large difference between the internal temperature of the unit and the ambient temperature, or in conditions where condensation occurs easily.