Boss Audio Systems RDS740UA, User Manual

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BASIC  OPERATION

:

1.  To turn on/off the unit 

     Press any button except the EJECT and REL button to turn on the unit. It also can
     turn on the unit to insert disc or USB. Press the power button and hold for more than
     0.5 seconds to turn off the unit.   

2.  To select playback mode

     Press MODE button to select a different mode of operation as indicated on the display
     panel. Available modes include Tuner, CDP, USB and AUX.

3.  To adjust the volume level

     To increase the volume, rotate the volume knob clockwise. To decrease the volume,
     rotate the volume knob counter clockwise. When the volume is adjusted, the volume
     level will be shown on the display panel.

4.  To mute or resume the sound

     Press MUTE button momentarily to mute the audio volume, and MUTE will flash in
     the display. Press the mute button again to restore volume to the previous setting.
     To resume the sound immediately, can also press one of the MODE, 
     BAND, SEL button or rotate the VOL knob.

5. To turn on/off LOUD mode

    Press TA button and hold for more than 0.5 seconds to turn on/off LOUD mode.
    When turn on the LOUD mode, it will enhance bass level immediately when the bass 
    is not enough.

5. To display and adjust the clock time
  

A) RADIO MODE

      When RDS DATA is received, press the CLOCK button shortly and repeatedly to 
      display the following items alternatively: 
               --->PS NAME ---> CLOCK --->FREQUENCY --->PTY-->  
      When RDS DATA is not received, press the CLOCK button shortly and repeatedly 
      to display the following items alternatively:
               --->FREQUENCY ---> CLOCK --->PTY--> 
  B) USB or DISC MODE
      Press the CLOCK button shortly to display time for 5 seconds, and then it returns 
      to its previous display unless the button is pressed again.
  C) time adjustment
      In the clock mode, press CLOCK button and hold for more than 1 second to flash 
      time and then rotate VOL knob to adjust hour or minute. 

6. To select and adjust the mode of the sound and menu

  A) To select and adjust the sound mode:
      Press SEL button shortly and repeatedly to select the mode of VOL(volume),BAS
      (bass)(without preset DSP), TRE(treble)(without preset DSP), BAL(balance) and 
      FAD(fader) in the sequence and circulation. In each mode, the waiting time is about
      5 seconds, and when the waiting time is over, it will return to the last display mode. 
      After select a desired sound item, rotate VOL knob to adjust level of the selected 
      sound item. 

SPECIFICATION

GENERAL
Supply Voltage                           DC 12 V. Negative Ground
Current Consumption                 Max.10A
Power Output                             80Watts X 4 (Measured at DC 14.4 V)
Number of channels                   2 STEREO channels.
Unit Dimensions                         178[W] X 165[D] X 50[H] mm.

FM SECTION
Frequency range                        87.5MHz -108MHz
Effective sensitivity                     3uV.
I.F Frequency                             10.7MHz.

RCA LINE OUT
Output                                        1200mV @ CD MAX.

CD PLAYER
System                                       MP3 Audio System.
Suitable CDs                              MP3, WMA, CD,CD-R,CD-RW Disc
Frequency characteristics          20Hz-100Hz < 5dB

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                                                   10KHz-20KHz < 5dB.

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S/N Ratio to CD                          50dB [1KHz]