Sony HT-ST7 Reference Guide - Page 13

 Check the connection of the HDMI cable, digital optical cable, or audio cable that is connected to the system and the TV (refer to "Connection" in the Operating Instructions).  Check that "TV" is displayed as the input source on the front panel display.  Check the sound output of the TV.  Check to make sure the TV sound volume is not too low or muted.  When a TV compatible with the Audio Return Channel (ARC) technology is connected with an HDMI cable, check to make sure the cable is connected to the HDMI (ARC) jack of the TV.  If the TV is not compatible with the Audio Return Channel (ARC) technology, connect the digital optical cable in addition to the HDMI cable in order to output sound. The sound is output from both the system and the TV.  Turn off the sound of the system or the TV. Sound lags behind the TV image.  Set "SYNC" to "OFF" if it is set to any of 1 to 4 (refer to "Adjusting the settings" in the Operating Instructions). No sound or only a very low-level sound of the equipment connected to the Bar Speaker is heard from the Bar Speaker.  Press VOL + and check the volume level (refer to "Parts and controls" in the Operating Instructions).  Press MUTING or VOL + to cancel the muting function (refer to "Parts and controls" in the Operating Instructions).  Make sure the input source is selected correctly. You should try other input sources by pressing the INPUT button several times (refer to "Listening to the audio" in the Operating Instructions).  Check that the input source is correctly selected.  Check that all the cables and cords of the system and the connected equipment are fully inserted. No sound or only a very low-level sound is heard from the subwoofer.  Turn up the subwoofer volume by pressing the SW VOL + button (refer to "Parts and controls" in the Operating Instructions).  Make sure that the  indicator on the subwoofer is lit in green. If not, refer to "No sound is output from the subwoofer." in "WIRELESS SOUND" (page 14).  A subwoofer is for reproducing bass sound. In the case of input sources that contain very little bass sound components (i.e., a TV broadcast), the sound from the subwoofer may be difficult to hear.  When you play content compatible with copyright protection technology (HDCP), it is not output from the subwoofer. Dolby Digital or DTS multi-channel sound is not reproduced.  Check the audio setting of Dolby Digital or DTS format on the Blu- ray Disc player, DVD player, etc., connected to the system. The surround effect cannot be obtained.  Depending on the input signal and the SOUND MODE setting, surround sound processing may not work effectively. The surround effect may be subtle depending on the program or disc.  If you connect a Blu-ray Disc player or a DVD player compatible with the surround effect function, the surround effect of the system may not work. In this case, set the surround effect function of the connected equipment to off. For details, refer to the operating instructions supplied with the connected equipment. BLUETOOTH BLUETOOTH connection cannot be completed.  Make sure that the BLUETOOTH indicator is lit in blue (refer to "Listening to the audio from BLUETOOTH devices" in the Operating Instructions). System status Indicator status During BLUETOOTH pairing Flashes quickly in blue. The system is attempting to connect Flashes in blue. with a BLUETOOTH device The system has established in Lights up in blue. connection with a BLUETOOTH device The system is in BLUETOOTH standby Flashes slowly in blue. mode (when the system is off)  Make sure the BLUETOOTH device to be connected is turned on and the BLUETOOTH function is enabled.  Locate this system and the BLUETOOTH device as near as possible.  Pair this system and the BLUETOOTH device again. continued 13US