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我不善英文,只明其理,无法翻译~!英文资料,大家将就看吧~!
This unit features two RCA inputs for standard devices, MP3 players, Tape Decks, Non-Sony Audio & Video gear, video game systems, etc. One USB port for connection of a computer, which might be used for standard audio or DVD playback. One headphone port with variable level adjustment, this allows the person listening to the headphones to listen to a differnent source than the main cabin in certain situations, such as a child watching a DVD movie if you should install a DVD player and display.
Description from Crutchfield:
Features
General Overview: The XA-300 Aux-In Selector accepts input from a UniLink CD/MD changer and up to two non-UniLink auxiliary sources (DVD player, video game, portable CD, MD, tape or MP3 player). In addition, the unit has a USB input to connect a laptop computer with a USB port. It also has a headphone output with volume control. The XA-300 has a UniLink output connection and stereo RCA outputs to connect the Aux-In Selector module to a Sony changer controller head unit, and allows the head unit to select input from the CD/MD changer or any of the auxiliary sources. (A 2-meter UniLink cable and a 2-meter stereo RCA patch cord is included). The unit requires no external power source because it receives power from the head unit.
AUX Input Connections: The input for each auxiliary source is a set of female RCA jacks mounted directly to the Aux-In Selector module. A stereo RCA patch cord should be connected to the AUX IN jacks on the module and run to where the auxiliary source will be located. If the aux source has a mini-jack output, a stereo mini-jack to dual male RCA cable (item 137ACW339) will be needed instead of a standard RCA patch cable.
USB Input: The USB input allows you to connect a laptop computer to your car stereo system (USB cable not included) in order to play MP3 files or other audio from the computer. The computer must have a compatible operating system in order to work. It must be running Windows 98 Second Edition, Windows ME, Windows 2000, or Mac OS 8.6 or later. (Sony recommends Windows 2000 or Mac OS 9.0 or later)
Selecting The Auxiliary Device: On the Sony changer controller head unit, press "SOURCE" repeatedly until "CD" is selected. Press "MODE" repeatedly until the device you want to listen to is selected. The head unit will cycle through each unit in the following order: CD1 (CD/MD changer) > CD2/AUX1 > CD3/AUX2 > CD4/USB. When CD1 is selected, the CD/MD changer will automatically start playing. When any other source is selected, playback of that unit will have to be manually started and the volume adjusted. As the volume settings of each connected device may differ, the volume of each device should be set to a similar level as the CD/MD changer.
Headphone Output: A stereo mini-plug headphone output with volume control is provided for the private listening of the auxiliary source connected to the AUX IN 1 input. The headphone output is always on, even if the head unit has selected one of the other sources. This allows a passenger to listen to the AUX IN 1 source while the head unit plays another source. (Headphone listening is not recommended while operating the vehicle)
Inputs and Outputs
Front of Unit:
Headphone Output: stereo mini-plug jack with volume control (for private listening of unit connected to Aux Input 1)
Aux Input 1: stereo RCA input (to connect a portable unit)
Aux Input 2: stereo RCA input (to connect a portable unit)
USB Input: for connecting laptop computer with USB Port
Rear of Unit:
Output: UniLink output and stereo RCA output (to Sony changer controller head unit)
Input: UniLink input and stereo RCA input (to connect UniLink CD/MD changer)
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