Sony STR-DH550 User Manual
MULTI CHANNEL AV RECEIVER
STR-DH750/STR-DH550
Indicators on the display panel
1. USB
Lights up when an iPhone/iPod or USB device is detected.
2. Input indicator
Lights up to indicate the current input.
HDMI
The receiver recognizes devices connected via an HDMI IN jack.
ARC
TV input is selected and Audio Return Channel (ARC) signals are detected.
COAX
Digital signals are input through the COAXIAL jack.
OPT
Digital signals are input through the OPTICAL jack.
HDMI
The receiver recognizes devices connected via an HDMI IN jack.
ARC
TV input is selected and Audio Return Channel (ARC) signals are detected.
COAX
Digital signals are input through the COAXIAL jack.
OPT
Digital signals are input through the OPTICAL jack.
3. D.R.C.
Lights up when dynamic range compression is activated.
4. Dolby Digital Surround indicator (*1)
The applicable indicator lights up when the receiver is decoding the corresponding Dolby Digital format
signals.
signals.
TrueHD: Dolby TrueHD
5. Dolby Pro Logic indicator
The applicable indicator lights up when the receiver performs Dolby Pro Logic processing (Dolby Pro
Logic). This matrix surround decoding technology can enhance input signals.
Logic). This matrix surround decoding technology can enhance input signals.
6. EQ
Lights up when the equalizer is activated.
7. DTS(-HD) indicator (*1)
The applicable indicator lights up when the receiver is decoding the corresponding DTS format signals.
DTS-HD
DTS-HD
: DTS-HD
8. ST
Lights up when the receiver tunes to a stereo broadcast.
9. D.C.A.C.
Lights up when the measurement results of the Auto Calibration function are applied.
10. SLEEP
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