User manual SONY MDX-61

[. . . ] However, dirt or dust on the surface of the cartridge or a warped cartridge may cause a malfunction in the unit. To enjoy optimum sound quality, observe the following. [. . . ] Otherwise, foreign matter may enter the unit and contaminate the lenses inside the changer. About one minute after opening the door, the inside compartment will be lit. Note When an MD is inserted and the door is closed, or the reset button of the connected car audio is pressed, the unit will be automatically activated and read the information on the MDs. After the information on all of the MDs in the disc magazine has been read, the unit is ready to play. Do not reach into the changer, you may get hurt. You can remove MDs anytime except while one is playing. Do not insert an MD with the label facing downwards. Make sure the MD's shutter is closed before inserting it into the magazine. When removing two or more MDs, remove them in order from the upper tray. Do not press the EJECT button while the unit is playing or reading an MD. You can also remove an MD in this way while it's playing. Avoid installing the unit in a place: -- subject to temperatures exceeding 55°C (such as in a car parked in direct sunlight). Choose the mounting location carefully, observing the following: -- The fuel tank should not be damaged by the tapping screws. -- There should be no wire harnesses or pipes under the place where you are going to install the unit. [. . . ] To prevent damage to the unit, do not use screws longer than 6 mm. Note For connecting two or more changers, the XA-C30 source selector (optional) is necessary. [. . . ]