TX-SR393 - Front Panel Layout

1. ON/STANDBY button
2. MUSIC OPTIMIZER button: Turns on/off the MUSIC OPTIMIZER function that improves the quality of the compressed audio.
3. BLUETOOTH indicator: Lights up when this unit and a BLUETOOTH-enabled device are connected.
4. DOLBY ATMOS indicator: Lights up when Dolby Atmos signals are reproduced in appropriate listening mode.
5. Remote control sensor: Receives signals from the remote controller. 

• The reception range of the remote controller is within a distance of approx.  16´/5 m, and an angle of 20° in vertical direction and 30° to right and left.

6. ZONE A/B button: Selects an audio output destination from among "ZONE A",
"ZONE B" and "ZONE A+B".

7. INFO button: Switches the information on the display and is used to operate RDS.
8. DIMMER button: Switches the brightness of the display with three levels. It cannot be turned off completely.
9. Display - Information Display, see below
10. SETUP button: You can display advanced setting items on the TV and the display to have a more enjoyable experience with this unit. 
11. Cursor buttons ( )and ENTER button: Select an item with the cursors, and press ENTER to confirm your selection. When using TUNER, use them to tune in to stations. 
12. RETURN button: Returns the display to the previous state while setting.
13. MASTER VOLUME
14. PHONES jack: Connect headphones with a standard plug (ø1/4"/6.3 mm).
15. LISTENING MODE button: Switches the listening mode by pressing "STEREO", "MOVIE/TV" and "MUSIC" repeatedly.
16. Input selector buttons: Switches the input to be played.
17. TONE CONTROL button: Adjusts the sound quality. Press / of "TREBLE", "VOCAL" or "BASS" respectively. 
18. SETUP MIC jack: Connect the supplied speaker setup microphone.

Display 

1. Speaker/Channel display: Displays the output channel that corresponds to the
selected listening mode.

 2. Displays the audio output destination.
A: Outputs audio only to the main room (ZONE A).
B: Outputs audio only to the separate room (ZONE B).
AB: Outputs audio to both the main room (ZONE A) and separate room (ZONE
B).

3. Lights in the following conditions.
: Headphones are connected.
: Connected by BLUETOOTH.
HDMI: HDMI signals are input and the HDMI input is selected.
DIGITAL: Digital signals are input and the digital input is selected.

4. Lights according to the type of input digital audio signal and the listening
mode.

5. Lights in the following conditions.
RDS (European, Australian and Asian models): Receiving RDS broadcasting.
TUNED: Receiving AM/FM radio.
FM ST: Receiving FM stereo.
SLEEP: Sleep timer is set. 
AUTO STBY: Auto Standby is set. 

6. Blinks when muting is on.

7. Displays various information of the input signals