Controls and Their Functions

Panel Operation

1.MAIN POWER SWITCH

Press this button once to switch on the unit, a red LED indicator will light up. Press it again to switch off the power.

2.OPEN/CLOSE BUTTON

Press to open or close the DVD/CD drawer to load or remove a disc.

3.REMOTE SENSOR

Receives the commands from the remote control handset.

4.NIGHT (The NIGHT function operates only when the Dolby Digital Surround mode is activated.) If you play a movie at low volume at night, set this function to “ON” to narrow the dynamic range of the sound and make it easier to hear.

5.DSP MODE BUTTON

Choose Prologic, 3 Stereo, Concert, Living, Hall, Bathroom, Cave, Arena, Church or Stereo when playing 2-channel disc. Choose Dolby Digital or 2 channel stereo when playing 5.1 channel disc.

6.SELECT BUTTON

Change speaker size and delay time.

7.SPEAKER SETUP BUTTON Choose speaker type.

8.PHONES

For private listening, insert optional (not included) headphones (1/4 inch plug) into the PHONES jack, and then all speakers are automatically disconnected.

Note: When the headphone is used, the output will change to STEREO automatically.

9.MIC 1 / MIC 2 JACKS

Plug the Microphone into either MIC 1 or the Mic 2 jack. Set the microphone ON/OFF switch to the ON position.

10.VOLUME UP BUTTON

Raises the volume of all 6 speakers.

11.VOLUME DOWN BUTTON Lowers the volume of all 6 speakers.

12.PAUSE BUTTON Pause the disc.

13.PLAY BUTTON Play the disc.

14.STOP BUTTON

Stop playing the disc or open the tray door.

15.MEMORY BUTTON

Program preset AM/FM radio stations.

16.MONO/STEREO BUTTON

When listening to FM radio press to switch between FM Stereo and FM mono mode.

17.TUNER (BAND) FUNCTION SELECTION

Press to select the Tuner function and listen to the radio. After selecting the Tuner function press the Tuner button again to switch between FM and AM bands.

18.DVD (CD) FUNCTION SELECTION

Press to select the DVD or CD playback modes.

19.VIDEO/VCR FUNCTION SELECTION

If you have connected the Audio Out jacks of your stereo VCR to the AUDIO INPUT jacks on the back of the unit, press the VIDEO button to listen to the sound of your VCR through the speakers of this system.

20.TV /AUX FUNCTION SELECTION

If you have connected the Audio Out jacks of your stereo TV to the TV/AUX INPUT jacks on the back of this unit, press the TV button to listen to the sound of your TV through the speakers of this system.

21.ON/STANDBY INDICATOR

Lights up when the system is in Standby (‘OFF’) mode. Turns off when the system is in operating (‘ON’) mode.

22.ON/STANDBY BUTTON

Turns the system on or off. (Main Power Switch must be in the ‘On’ position.)

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Koss KS4380-2 manual Controls and Their Functions, Speaker Setup Button Choose speaker type, MIC 1 / MIC 2 Jacks